2018 Vol. 39 Issue 1
2018 Vol. 39, No. 1
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2018, 39(1): 1-5.
doi: 10.16779/j.cnki.1003-5508.2018.01.001
Abstract:
Crossbreeding and utilization of heterosis were the key ways of forest tree improvement.A NCⅡ design was conducted with twelve plus trees of A. cremastogyne Burk.and one improved breeds of A. glutinosa.Phenotypic traits of one year seedlings were measured to reveal the growth performance and genetic stability of crossbreeding seedlings,and to provide reference for breeding of A.cremastogyne.The results showed that there were very significant differences between families in height and diameter.An obvious difference of the general combining ability (GCA) existed between different traits with the same parents or between different parents with the same traits.JT4 as a female parent had a relatively higher GCA value than other parents.There were significant differences of special combining ability (SCA) between families,F6 had the most SCA value in height,F36 had the most SCA value in diameter.High broad-sense heritability existed in all traits,with the broad-sense heritability of height above 50%.Comprehensive analysis showed that significant differences occurred between hybrid offspring,so primary selection of seedlings among and within families was workable.JT4,JG6 or BZ6 (as female parents),LD8 or XH5 (as male parents) had a high GCA value.It was primarily thought that these parents could be served as the better parents resources of crossbreeding.F6,F32,F36,and F42 could be used for breeding in A.cremastogyne because of their higher SCA value in height and diameter than other families.
Crossbreeding and utilization of heterosis were the key ways of forest tree improvement.A NCⅡ design was conducted with twelve plus trees of A. cremastogyne Burk.and one improved breeds of A. glutinosa.Phenotypic traits of one year seedlings were measured to reveal the growth performance and genetic stability of crossbreeding seedlings,and to provide reference for breeding of A.cremastogyne.The results showed that there were very significant differences between families in height and diameter.An obvious difference of the general combining ability (GCA) existed between different traits with the same parents or between different parents with the same traits.JT4 as a female parent had a relatively higher GCA value than other parents.There were significant differences of special combining ability (SCA) between families,F6 had the most SCA value in height,F36 had the most SCA value in diameter.High broad-sense heritability existed in all traits,with the broad-sense heritability of height above 50%.Comprehensive analysis showed that significant differences occurred between hybrid offspring,so primary selection of seedlings among and within families was workable.JT4,JG6 or BZ6 (as female parents),LD8 or XH5 (as male parents) had a high GCA value.It was primarily thought that these parents could be served as the better parents resources of crossbreeding.F6,F32,F36,and F42 could be used for breeding in A.cremastogyne because of their higher SCA value in height and diameter than other families.
2018, 39(1): 6-9.
doi: 10.16779/j.cnki.1003-5508.2018.01.002
Abstract:
Studies were made of the total biomass,bio-diversity of shrub layer and grass layer from 20 years old,30 years old and 40 years old artificial forest of Picea asperata Mast.under different pruning intensity modes (X1,X2 and X3 respectively meaning cutting off 0 m branch,1m branch and 2 m branch above the ground).And effects of pruning on biomass and biodiversity of shrub and grass under the artificial forest were analyzed through representative sampling and harvesting.The result showed that pruning had a kind of effect on shrubs and grasses under forest in short-term period.The bio-diversity of shrub layer and grass layer under forest were more sensitive than the biomass of them.Shannon-Weiner index of shrub layer of 20 years old and 30 years old artificial forest and Simpson index of 30 years old artificial forest increased significantly after pruning.X1 had a stronger effect on promoting bio-diversity of shrub layer than X2.
Studies were made of the total biomass,bio-diversity of shrub layer and grass layer from 20 years old,30 years old and 40 years old artificial forest of Picea asperata Mast.under different pruning intensity modes (X1,X2 and X3 respectively meaning cutting off 0 m branch,1m branch and 2 m branch above the ground).And effects of pruning on biomass and biodiversity of shrub and grass under the artificial forest were analyzed through representative sampling and harvesting.The result showed that pruning had a kind of effect on shrubs and grasses under forest in short-term period.The bio-diversity of shrub layer and grass layer under forest were more sensitive than the biomass of them.Shannon-Weiner index of shrub layer of 20 years old and 30 years old artificial forest and Simpson index of 30 years old artificial forest increased significantly after pruning.X1 had a stronger effect on promoting bio-diversity of shrub layer than X2.
2018, 39(1): 10-16.
doi: 10.16779/j.cnki.1003-5508.2018.01.003
Abstract:
In this paper,18 experimental points of Chinese prickly ash main production areas in Sichuan were taken as objects,aiming to study the accumulation characteristics of lead and risk of eating.The results showed that:barks,branches,leaves,and cones of Chinese prickly ash all had certain ability to enrich lead in soil; the organic form contents in every plant tissue of Chinese prickly ash were significantly higher than other 4 forms; the total lead content in every peel sample was significantly higher than that in other tissue samples; the difference in total lead content between branch and leaf samples was not obvious;The total lead contents of barks was lower; The Nemerow Pollution Index P value grade showed certain overproof risk; The total lead content of soil had no obvious relationship with peels; But the higher the bioavailability K value of soil,the bigger the enrichment risk of peels; The target risk factor (THQ) of Pb in Chinese prickly ash for adults was far lower than 1.0,which explained that the Pb content in edible parts of Chinese prickly ash was extremely low-risk to our consumers' health in a short period.
In this paper,18 experimental points of Chinese prickly ash main production areas in Sichuan were taken as objects,aiming to study the accumulation characteristics of lead and risk of eating.The results showed that:barks,branches,leaves,and cones of Chinese prickly ash all had certain ability to enrich lead in soil; the organic form contents in every plant tissue of Chinese prickly ash were significantly higher than other 4 forms; the total lead content in every peel sample was significantly higher than that in other tissue samples; the difference in total lead content between branch and leaf samples was not obvious;The total lead contents of barks was lower; The Nemerow Pollution Index P value grade showed certain overproof risk; The total lead content of soil had no obvious relationship with peels; But the higher the bioavailability K value of soil,the bigger the enrichment risk of peels; The target risk factor (THQ) of Pb in Chinese prickly ash for adults was far lower than 1.0,which explained that the Pb content in edible parts of Chinese prickly ash was extremely low-risk to our consumers' health in a short period.
2018, 39(1): 17-21.
doi: 10.16779/j.cnki.1003-5508.2018.01.004
Abstract:
Eucalyptus cloeziana is an excellent rare and endangered speies,and its lumber quality of E.cloeziana is similar to that of rose wood.This paper deals with the progress of heredity and breeding of E.s cloeziana,including introduction test,cold resistance and wood properties research.The bottleneck of the current development of E.cloeziana was pointed out,and the development direction of genetic breeding was given in the end.
Eucalyptus cloeziana is an excellent rare and endangered speies,and its lumber quality of E.cloeziana is similar to that of rose wood.This paper deals with the progress of heredity and breeding of E.s cloeziana,including introduction test,cold resistance and wood properties research.The bottleneck of the current development of E.cloeziana was pointed out,and the development direction of genetic breeding was given in the end.
2018, 39(1): 22-26.
doi: 10.16779/j.cnki.1003-5508.2018.01.005
Abstract:
Walnut is one of the important forest products in our country.Polyphenolic compounds extracted from Walnut green husk were abundant and healthy to the human body.However because of carelessly discarded husk,environment became increasingly worsened.This paper reviewed the research progress of biological activity,separation and purification of the polyphenols of walnut green husk,and looked forward to the research and application in the future,aiming to provide some thoughts in scientific research and the application of walnut green husk's polyphenolic resources for the purpose of promoting the walnut industry.
Walnut is one of the important forest products in our country.Polyphenolic compounds extracted from Walnut green husk were abundant and healthy to the human body.However because of carelessly discarded husk,environment became increasingly worsened.This paper reviewed the research progress of biological activity,separation and purification of the polyphenols of walnut green husk,and looked forward to the research and application in the future,aiming to provide some thoughts in scientific research and the application of walnut green husk's polyphenolic resources for the purpose of promoting the walnut industry.
2018, 39(1): 27-31.
doi: 10.16779/j.cnki.1003-5508.2018.01.006
Abstract:
Studies were made of the physical and mechanical properties and its vertical variation of Liriodendron chinense wood from natural forest.The results showed the wood basic density(BD),over-dry density(DD)and air-dry density(AD)were respectively 0.352 g·cm-3,0.396 g·cm-3 and 0.558 g·cm-3.The characteristics of BD,DD and AD displayed the upper > middle > lower parts in the vertical direction,and the difference was very significant.The wood volume shrinkage ratio of natural L.chinense forest under air-drying condition were 7.21%,while under oven-dry condition,it was 2.54%.The wet expansion rate of wood volume was 4.54% from oven-dry to air-dry,while the volume wet expansion rate of wood was 12.41% from air-dry to water absorption.The wood shrinkage was the upper > the lower > the middle part in the vertical direction,while the volume wetting rate was the the upper part > the middle part > the lower part.The volume dry shrinkage dampness was different in the vertical direction.The compressive strength and flexural strength of the wood were 34.7 MPa and 53.22 MPa,respectively.The hardness of the transverse,chord and diameter surfaces were 3.49 kN,2.55 kN and 2.45 kN,respectively.In the vertical direction,the CIS compressive strength,bending strength,transverse hardness and the hardness of the diameter surface of wood showed the rule of the upper part > the middle part > the lower part.It was proved that wood density of natural forest of L. chinense was a light medium level,and its CIS compression,bending resistance and hardness were general level.The wood of L. chinense was suitable for processing and utilization.
Studies were made of the physical and mechanical properties and its vertical variation of Liriodendron chinense wood from natural forest.The results showed the wood basic density(BD),over-dry density(DD)and air-dry density(AD)were respectively 0.352 g·cm-3,0.396 g·cm-3 and 0.558 g·cm-3.The characteristics of BD,DD and AD displayed the upper > middle > lower parts in the vertical direction,and the difference was very significant.The wood volume shrinkage ratio of natural L.chinense forest under air-drying condition were 7.21%,while under oven-dry condition,it was 2.54%.The wet expansion rate of wood volume was 4.54% from oven-dry to air-dry,while the volume wet expansion rate of wood was 12.41% from air-dry to water absorption.The wood shrinkage was the upper > the lower > the middle part in the vertical direction,while the volume wetting rate was the the upper part > the middle part > the lower part.The volume dry shrinkage dampness was different in the vertical direction.The compressive strength and flexural strength of the wood were 34.7 MPa and 53.22 MPa,respectively.The hardness of the transverse,chord and diameter surfaces were 3.49 kN,2.55 kN and 2.45 kN,respectively.In the vertical direction,the CIS compressive strength,bending strength,transverse hardness and the hardness of the diameter surface of wood showed the rule of the upper part > the middle part > the lower part.It was proved that wood density of natural forest of L. chinense was a light medium level,and its CIS compression,bending resistance and hardness were general level.The wood of L. chinense was suitable for processing and utilization.
2018, 39(1): 32-36.
doi: 10.16779/j.cnki.1003-5508.2018.01.007
Abstract:
In order to further explore the specific germplasm resources of walnuts in Sichuan,the indexes were comprehensively analyzed including spicate of walnut three diameter value,single fruit weight,kernel weight,kernel rate,walnut shell thickness,crude fat and crude protein on the basis of the preliminary investigation spicate walnut germplasm resources,by means of principal component analysis and walnut quality score.The results showed that (1) The cumulative variance contribution rate of principal component 1~3 was 88.49%.3 principal components and their principal component functions were identified for the main traits of spicate walnuts.The important principal components of each individual were calculated.(2)The evaluation function model of nut comprehensive characters was established,and the principal component comprehensive score of each individual was calculated.Then the comprehensive comparison and ordination were made.The order of each individual was SQLG,HSZML,CTYM,PAXH,HSLH and XJPX.(3) HSZML,HSLH and SQLG were selected as 3 superior individuals.
In order to further explore the specific germplasm resources of walnuts in Sichuan,the indexes were comprehensively analyzed including spicate of walnut three diameter value,single fruit weight,kernel weight,kernel rate,walnut shell thickness,crude fat and crude protein on the basis of the preliminary investigation spicate walnut germplasm resources,by means of principal component analysis and walnut quality score.The results showed that (1) The cumulative variance contribution rate of principal component 1~3 was 88.49%.3 principal components and their principal component functions were identified for the main traits of spicate walnuts.The important principal components of each individual were calculated.(2)The evaluation function model of nut comprehensive characters was established,and the principal component comprehensive score of each individual was calculated.Then the comprehensive comparison and ordination were made.The order of each individual was SQLG,HSZML,CTYM,PAXH,HSLH and XJPX.(3) HSZML,HSLH and SQLG were selected as 3 superior individuals.
2018, 39(1): 37-43.
doi: 10.16779/j.cnki.1003-5508.2018.01.008
Abstract:
The wild macrofungi resources in Baishuihe Nature Reserve were investigated,classified and identified.The results showed that there were 136 species of macrofungi belonging to 2 subphylums,4 classes,10 orders,32 families and 71 genera.Also,the diversity of species and ecotypes were analysed together with economic value.
The wild macrofungi resources in Baishuihe Nature Reserve were investigated,classified and identified.The results showed that there were 136 species of macrofungi belonging to 2 subphylums,4 classes,10 orders,32 families and 71 genera.Also,the diversity of species and ecotypes were analysed together with economic value.
2018, 39(1): 44-49.
doi: 10.16779/j.cnki.1003-5508.2018.01.009
Abstract:
The World Natural Heritage of Giant Panda Habitats in Sichuan has been successfully declared for 12 years.A lot of achievements have been gotten about the protection and management of heritage sites,but also there are many challenges to be dealt with.The natural heritage of the giant panda in Sichuan is a valuable resource with global prominence.It is a necessary way to rationally use the natural heritage resources of the giant panda and to develop the eco-tourism and its related industries for the sustainable development of the inhabitats.In this paper,from the application history and current situation of heritage protection and management,in accordance with Convention concerning the Protection of the World Cultural and Natural Heritage and Regulations on the Protection of the World Heritage of Sichuan Province,the long-term,sufficient and concrete protection and management measures are put forward from the legislative,normative,traditional and other aspects of the heritage site.The overall management and sustainable utilization of the National Park system will be realized with Chinese characteristics by improving the overall protection and management level of the heritage sites.
The World Natural Heritage of Giant Panda Habitats in Sichuan has been successfully declared for 12 years.A lot of achievements have been gotten about the protection and management of heritage sites,but also there are many challenges to be dealt with.The natural heritage of the giant panda in Sichuan is a valuable resource with global prominence.It is a necessary way to rationally use the natural heritage resources of the giant panda and to develop the eco-tourism and its related industries for the sustainable development of the inhabitats.In this paper,from the application history and current situation of heritage protection and management,in accordance with Convention concerning the Protection of the World Cultural and Natural Heritage and Regulations on the Protection of the World Heritage of Sichuan Province,the long-term,sufficient and concrete protection and management measures are put forward from the legislative,normative,traditional and other aspects of the heritage site.The overall management and sustainable utilization of the National Park system will be realized with Chinese characteristics by improving the overall protection and management level of the heritage sites.
2018, 39(1): 50-53.
doi: 10.16779/j.cnki.1003-5508.2018.01.010
Abstract:
The observation was made of the crude ash and dry matter content were observed of Arundinaria spanostachya after the panda ate it,and the effects of wild giant panda eating were discussed on the accumulation of crude ash and dry matter in A. spanostachya.The results showed that the content of crude ash in the same age-class conditions and the same organs of bamboo was significantly higher than that in the control plots(P<0.05),while the dry matter content was higher than that in the control plots(P>0.05).The content of crude ash in branches and leaves was significantly higher than that in the stem(P<0.05),while the content of dry matter was lower than that in the stem.With the increase of age-class,the content of crude ash increased gradually year by year,while the content of dry matter decreased.There was no obvious influence on the accumulation of the crude ash and dry matter after the giant panda eating.Crude ash and dry matter would not affect the sustainable use of A. spanostachy for wild giant pandas.It was beneficial to the survival and reproduction of the giant panda in the Liziping Nature Reserve.
The observation was made of the crude ash and dry matter content were observed of Arundinaria spanostachya after the panda ate it,and the effects of wild giant panda eating were discussed on the accumulation of crude ash and dry matter in A. spanostachya.The results showed that the content of crude ash in the same age-class conditions and the same organs of bamboo was significantly higher than that in the control plots(P<0.05),while the dry matter content was higher than that in the control plots(P>0.05).The content of crude ash in branches and leaves was significantly higher than that in the stem(P<0.05),while the content of dry matter was lower than that in the stem.With the increase of age-class,the content of crude ash increased gradually year by year,while the content of dry matter decreased.There was no obvious influence on the accumulation of the crude ash and dry matter after the giant panda eating.Crude ash and dry matter would not affect the sustainable use of A. spanostachy for wild giant pandas.It was beneficial to the survival and reproduction of the giant panda in the Liziping Nature Reserve.
2018, 39(1): 54-58,65.
doi: 10.16779/j.cnki.1003-5508.2018.01.011
Abstract:
In recent years,dead goral bodies were often found in winter and spring in subalpine areas of western Sichuan.As the dead bodies resulted from unknown cause and varied in amount,it was very unfavorable to the protection and management of the goral and other wild animals in these areas.To find the cause of the goral's death,and corresponding countermeasure,12 times of investigation were conducted in the Dengsheng Managed and Conserved Area from October 2016 to March 2017,21 dead bodies of gorals were found,of which,2 were female,17 were male and 2 were unable to be distinguished,respectively accounting for 9.5%,81.0%,and 9.5% of the total.17 skin samples were collected,and the lab testing showed that sarcoptidae eggs were positive.The death time was mainly in January and February (19 gorals,accounting for 90.5%).All the death places were within 20 meters away from the water points,of which the farthest was 20 meters,the nearest was 1 meter,and the average was 8.5 meters.Bodies were found to be concentrated in the valleys of 2 200 to 2 900 meters above the sea level (18 gorals,accounting for 85.7%,the lowest was 2 165 meters and the highest was 2 910 meters),and the peripheral habitat type was mixed coniferous broad leaved forest.6 bodies were found to be eaten by other animals and 15 were not eaten,accounting for 28.6% and 71.4% respectively.During the investigation,17 bodies were harmlessly disposed,3 skulls and 1 skeleton were collected.The causes of the goral's illness and death were also analyzed and some suggestions were put forward for the management and conservation of gorals.
In recent years,dead goral bodies were often found in winter and spring in subalpine areas of western Sichuan.As the dead bodies resulted from unknown cause and varied in amount,it was very unfavorable to the protection and management of the goral and other wild animals in these areas.To find the cause of the goral's death,and corresponding countermeasure,12 times of investigation were conducted in the Dengsheng Managed and Conserved Area from October 2016 to March 2017,21 dead bodies of gorals were found,of which,2 were female,17 were male and 2 were unable to be distinguished,respectively accounting for 9.5%,81.0%,and 9.5% of the total.17 skin samples were collected,and the lab testing showed that sarcoptidae eggs were positive.The death time was mainly in January and February (19 gorals,accounting for 90.5%).All the death places were within 20 meters away from the water points,of which the farthest was 20 meters,the nearest was 1 meter,and the average was 8.5 meters.Bodies were found to be concentrated in the valleys of 2 200 to 2 900 meters above the sea level (18 gorals,accounting for 85.7%,the lowest was 2 165 meters and the highest was 2 910 meters),and the peripheral habitat type was mixed coniferous broad leaved forest.6 bodies were found to be eaten by other animals and 15 were not eaten,accounting for 28.6% and 71.4% respectively.During the investigation,17 bodies were harmlessly disposed,3 skulls and 1 skeleton were collected.The causes of the goral's illness and death were also analyzed and some suggestions were put forward for the management and conservation of gorals.
2018, 39(1): 59-62,76.
doi: 10.16779/j.cnki.1003-5508.2018.01.012
Abstract:
In order to reveal visiting and ingestion bird species and their ingestion intensity on Taxillus nigrans,one of the parasitic Loranthaceae species in autumn and winter,investigetions were made on the bird species,visiting times,and ingestion times from October 10,2013 to December 19,2013.There were 19 species visiting T.nigrans,among which,11 species ingested fruits.Pycnonotus sinensis was the only species which ingested fruits on every censored day,and the ratio of ingestion days was 100%.Dicaeum ignipectus ingested fruits in November and December.The ingestion intensity with bird species was various,D.ignipectus had a most intensive ingestion degree,and then in descending order came Pycnonotus sinensis, Eophona personata, E.migratoria, Phylloscopus chloronotus, Pardaliparus venustulus,Zosterops erythropleurus,Aegithalos concinnus,Garrulax sannio,and Chloris sinica.
In order to reveal visiting and ingestion bird species and their ingestion intensity on Taxillus nigrans,one of the parasitic Loranthaceae species in autumn and winter,investigetions were made on the bird species,visiting times,and ingestion times from October 10,2013 to December 19,2013.There were 19 species visiting T.nigrans,among which,11 species ingested fruits.Pycnonotus sinensis was the only species which ingested fruits on every censored day,and the ratio of ingestion days was 100%.Dicaeum ignipectus ingested fruits in November and December.The ingestion intensity with bird species was various,D.ignipectus had a most intensive ingestion degree,and then in descending order came Pycnonotus sinensis, Eophona personata, E.migratoria, Phylloscopus chloronotus, Pardaliparus venustulus,Zosterops erythropleurus,Aegithalos concinnus,Garrulax sannio,and Chloris sinica.
2018, 39(1): 63-65.
doi: 10.16779/j.cnki.1003-5508.2018.01.013
Abstract:
Semiliquidambar cathayensis H.T.Chang was found to be a new record genus in Sichuan,which belonged to one of the national secondary protected wild plants.This finding further contributed to the richness of plant flora in Sichuan,and provided new data for the connection between the rainy zone of west China and the Yunnan-Guizhou plateau.
Semiliquidambar cathayensis H.T.Chang was found to be a new record genus in Sichuan,which belonged to one of the national secondary protected wild plants.This finding further contributed to the richness of plant flora in Sichuan,and provided new data for the connection between the rainy zone of west China and the Yunnan-Guizhou plateau.
2018, 39(1): 66-71.
doi: 10.16779/j.cnki.1003-5508.2018.01.014
Abstract:
The forest park therapy was a kind of forest tourism which emphasized the functions of health careand leisure.In China,this type of forest park was still in its initial stage and lacked theoretical and methodological guidance.For Dayuandong National Forest Park,the problems of hardware and software were analyzed after the investigation,on the basis of the national forestry industry standard Quality Assessment of Forest Health Base (LY/T 2789-2017).Then,development strategies were put forword for the lower score parts such as forest health activity areas,dining facilities,health care facilities and forest health trails,which could also lay the foundation for the development of Dayuandong National Forest Park and theoretical and operational guidance and support for the planning of therapy forest parks.
The forest park therapy was a kind of forest tourism which emphasized the functions of health careand leisure.In China,this type of forest park was still in its initial stage and lacked theoretical and methodological guidance.For Dayuandong National Forest Park,the problems of hardware and software were analyzed after the investigation,on the basis of the national forestry industry standard Quality Assessment of Forest Health Base (LY/T 2789-2017).Then,development strategies were put forword for the lower score parts such as forest health activity areas,dining facilities,health care facilities and forest health trails,which could also lay the foundation for the development of Dayuandong National Forest Park and theoretical and operational guidance and support for the planning of therapy forest parks.
2018, 39(1): 72-76.
doi: 10.16779/j.cnki.1003-5508.2018.01.015
Abstract:
In order to research the growth process of Pinus massoniana,analysis was made of the stem analyses of Pinus massoniana collected from Heishipo Forest Farm.The results showed that the fast-growing period of current annual increment of tree height was from 6th year to 15th year,and the maximum of current annual increment and average increment appeared in 10-year-old period,and they intersected in 14-year-old period.The fast-growing period of DBH appeared two times,namely,during 10~14 years and 30~45 years.The maximum growth of current annual increment of volume appeared in 40-year-old period,with 0.024 00 m3.The average increment of volume did not reach the peak until the 48-year-old,and the volume did not reach the quantitative maturity.The logistic equation was good to mode the growth of DBH,tree height and volume of Pinus massoniana plantation,the goodness of fit was more than 0.98,fitting effect was obvious.The equations were YH=19.169 36/(1+exp(-0.087 94×(x-24.549 44))、YD=34.831 04/(1+exp(-0.079 36×(x-33.776 92))、YV=0.636 36/(1+exp(-0.147 32×(x-40.061 83)) respectively.
In order to research the growth process of Pinus massoniana,analysis was made of the stem analyses of Pinus massoniana collected from Heishipo Forest Farm.The results showed that the fast-growing period of current annual increment of tree height was from 6th year to 15th year,and the maximum of current annual increment and average increment appeared in 10-year-old period,and they intersected in 14-year-old period.The fast-growing period of DBH appeared two times,namely,during 10~14 years and 30~45 years.The maximum growth of current annual increment of volume appeared in 40-year-old period,with 0.024 00 m3.The average increment of volume did not reach the peak until the 48-year-old,and the volume did not reach the quantitative maturity.The logistic equation was good to mode the growth of DBH,tree height and volume of Pinus massoniana plantation,the goodness of fit was more than 0.98,fitting effect was obvious.The equations were YH=19.169 36/(1+exp(-0.087 94×(x-24.549 44))、YD=34.831 04/(1+exp(-0.079 36×(x-33.776 92))、YV=0.636 36/(1+exp(-0.147 32×(x-40.061 83)) respectively.
2018, 39(1): 77-81.
doi: 10.16779/j.cnki.1003-5508.2018.01.016
Abstract:
Investigations were made on the various plant patterns which appeared in the decoration of the two types of gardens (the private gardens and temples) in the decoration of classical garden architecture in Yangzhou.Analysis was made of the application of plant elements in each location,their implication in the traditional culture,and the relationship between the garden style,theme and artistic conception,aiming to provide a reference for the application of plant culture in the future garden decoration design.
Investigations were made on the various plant patterns which appeared in the decoration of the two types of gardens (the private gardens and temples) in the decoration of classical garden architecture in Yangzhou.Analysis was made of the application of plant elements in each location,their implication in the traditional culture,and the relationship between the garden style,theme and artistic conception,aiming to provide a reference for the application of plant culture in the future garden decoration design.
2018, 39(1): 82-86.
doi: 10.16779/j.cnki.1003-5508.2018.01.017
Abstract:
Nitrogen (N) deposition could change CO2 efflux in forest soils,but current experimental results showed a high uncertainty in the direction and magnitude of the effect of N deposition.By combining the in situ monitoring results of N deposition experiments that were conducted in China,the effects of N deposition were assessed on CO2 efflux in forest soils at national scale.The results showed that N deposition significantly declined 8.7% of the CO2 efflux in forest soils in China,and this influence was greater for secondary forests and plantations than that for for primary forests.Moreover,N deposition had no significant effects on soil CO2 efflux in broad-leaved,needle and mixed forests,but significantly decreased the CO2 efflux in bamboo soils by 36%.However,this influence was significant only when the dose of N fertilization was more than 100 kg N·hm-2·a-1,and the effect of ammonium nitrate was greater than urea.The decline in CO2 efflux in forest soils was due to the decrease of soil microbial activity induced by fertilized N.
Nitrogen (N) deposition could change CO2 efflux in forest soils,but current experimental results showed a high uncertainty in the direction and magnitude of the effect of N deposition.By combining the in situ monitoring results of N deposition experiments that were conducted in China,the effects of N deposition were assessed on CO2 efflux in forest soils at national scale.The results showed that N deposition significantly declined 8.7% of the CO2 efflux in forest soils in China,and this influence was greater for secondary forests and plantations than that for for primary forests.Moreover,N deposition had no significant effects on soil CO2 efflux in broad-leaved,needle and mixed forests,but significantly decreased the CO2 efflux in bamboo soils by 36%.However,this influence was significant only when the dose of N fertilization was more than 100 kg N·hm-2·a-1,and the effect of ammonium nitrate was greater than urea.The decline in CO2 efflux in forest soils was due to the decrease of soil microbial activity induced by fertilized N.
2018, 39(1): 87-90.
doi: 10.16779/j.cnki.1003-5508.2018.01.018
Abstract:
Based on the comprehensive investigation in Bayuelin Nature Reserve,the age structure mas analyzed and the specific time sdedule of the natural population of Davidia involucrata was prepared by diameter class and the piecewise leveling technique instead of age range.The survival curve and the mortality curve were drawn together with the rate of disappearance curve.By the way of time series,the dynamic changes in the number of populations were predicted.Results showed that the age structure of D. involucrata population fluctuated,and the number of juvenile and adult individuals was relatively rich.Considering the disturbance of ambient environment,V'pi=2.50%,the survival curve tended to Deevey-Ⅲtype;The trend of death rate curve and disappearance rate curve were basically the same.The time series prediction showed that the population had some potential for recovery.
Based on the comprehensive investigation in Bayuelin Nature Reserve,the age structure mas analyzed and the specific time sdedule of the natural population of Davidia involucrata was prepared by diameter class and the piecewise leveling technique instead of age range.The survival curve and the mortality curve were drawn together with the rate of disappearance curve.By the way of time series,the dynamic changes in the number of populations were predicted.Results showed that the age structure of D. involucrata population fluctuated,and the number of juvenile and adult individuals was relatively rich.Considering the disturbance of ambient environment,V'pi=2.50%,the survival curve tended to Deevey-Ⅲtype;The trend of death rate curve and disappearance rate curve were basically the same.The time series prediction showed that the population had some potential for recovery.
2018, 39(1): 91-95.
doi: 10.16779/j.cnki.1003-5508.2018.01.019
Abstract:
Urban modern forestry is a completely new form of forestry. In the hope of providing proper decision-making references in urban modern forestry development,this paper deals with the conception,characteristics and fundamental connotation about urban modern forestry,and puts forward some creative solutions for urban modern forestry in the development layout,building operations and countermeasures.
Urban modern forestry is a completely new form of forestry. In the hope of providing proper decision-making references in urban modern forestry development,this paper deals with the conception,characteristics and fundamental connotation about urban modern forestry,and puts forward some creative solutions for urban modern forestry in the development layout,building operations and countermeasures.
2018, 39(1): 96-100.
doi: 10.16779/j.cnki.1003-5508.2018.01.020
Abstract:
Forest resource information management is an important content for forestry information construction.In order to promote the scientific management for Chengdu forest resource data,a forest resource data management platform has been created.Besides the necessary software and hardware platform was based on GIS technology and equipped with C/S and B/S hybrid software architecture,matched with ArcGIS Server and Portal for GIS services and JAVA for non-GIS services. Users could use the application service layer and user interaction layer for data management and access.
Forest resource information management is an important content for forestry information construction.In order to promote the scientific management for Chengdu forest resource data,a forest resource data management platform has been created.Besides the necessary software and hardware platform was based on GIS technology and equipped with C/S and B/S hybrid software architecture,matched with ArcGIS Server and Portal for GIS services and JAVA for non-GIS services. Users could use the application service layer and user interaction layer for data management and access.
2018, 39(1): 101-104.
doi: 10.16779/j.cnki.1003-5508.2018.01.021
Abstract:
With the deepening of supply-side reform and the coming era of electroniccommerce,the supplies of forestry products would increasingly rely on brand effect.Implementing the brand strategy of forest products would become a trend of the new era. It was also an important measure for farmers to increase income and lift out of poverty. Jinyang green Zanthoxylum (Zanthoxylum schinifolium) was taken as an example by analyzing its development status,brand building prospects and existing problems. It was believed that the key was industrial investment,market management,product brand building and brand creativity for Jinyang green Zanthoxylum to get the market.
With the deepening of supply-side reform and the coming era of electroniccommerce,the supplies of forestry products would increasingly rely on brand effect.Implementing the brand strategy of forest products would become a trend of the new era. It was also an important measure for farmers to increase income and lift out of poverty. Jinyang green Zanthoxylum (Zanthoxylum schinifolium) was taken as an example by analyzing its development status,brand building prospects and existing problems. It was believed that the key was industrial investment,market management,product brand building and brand creativity for Jinyang green Zanthoxylum to get the market.
2018, 39(1): 105-108,117.
doi: 10.16779/j.cnki.1003-5508.2018.01.022
Abstract:
Wangcang Provincial Forest Park is located in north Wangcang County, Sichuan Province, and between 106°19'15"~106°25'42"E, 32°32'23"~32°36'25"N. There were 980 species of seed plants, belonging to 112 families, 498 genera, and the major were Oligotypic families (73 families,accounting for 65.18% of the total) and Monotypic genera (268 genera,accounting for 53.82% of the total) among which gymnodperms had 5 families, 13 genera, 18 species, and angiosperms had 107 families, 485 genera, 962 species. The floristic elements of genera and families were composed of 15 types and 11 types of Chinese seed plants. At the family level, the major were the Tropical element (46 families,accounting for 41.07% of the total). At the genera level, the major were the Temperate element (282 genera,accounting for 56.63% of the total) and Tropical element (150 genera,accounting for 30.12% of the total). The element of endemic to China had 19 genera (accounting for 3.82% of the total). Moreover, 9 species in Wangcang Provincial Forest Park were listed in the national protection plant categories, such as Taxus chinensis.
Wangcang Provincial Forest Park is located in north Wangcang County, Sichuan Province, and between 106°19'15"~106°25'42"E, 32°32'23"~32°36'25"N. There were 980 species of seed plants, belonging to 112 families, 498 genera, and the major were Oligotypic families (73 families,accounting for 65.18% of the total) and Monotypic genera (268 genera,accounting for 53.82% of the total) among which gymnodperms had 5 families, 13 genera, 18 species, and angiosperms had 107 families, 485 genera, 962 species. The floristic elements of genera and families were composed of 15 types and 11 types of Chinese seed plants. At the family level, the major were the Tropical element (46 families,accounting for 41.07% of the total). At the genera level, the major were the Temperate element (282 genera,accounting for 56.63% of the total) and Tropical element (150 genera,accounting for 30.12% of the total). The element of endemic to China had 19 genera (accounting for 3.82% of the total). Moreover, 9 species in Wangcang Provincial Forest Park were listed in the national protection plant categories, such as Taxus chinensis.
2018, 39(1): 109-112.
doi: 10.16779/j.cnki.1003-5508.2018.01.023
Abstract:
Journal Impact Factor (JIF) is an important index of journal quality and paper level. The change rules were analyzed together with influences to journal impact factor, the factor position in the academic subject and the annual periodical dynamic, etc.,based on the JIF data of Journal of Sichuan Forestry Science and Technology (JSFST) in 2009~2015. Three countermeasures were put forward for stable development of JSFST, including outstanding publication characteristics, making the draft plan, updating submission system to shorten the period of checking,and strengthening the editing management and service consciousness, etc.
Journal Impact Factor (JIF) is an important index of journal quality and paper level. The change rules were analyzed together with influences to journal impact factor, the factor position in the academic subject and the annual periodical dynamic, etc.,based on the JIF data of Journal of Sichuan Forestry Science and Technology (JSFST) in 2009~2015. Three countermeasures were put forward for stable development of JSFST, including outstanding publication characteristics, making the draft plan, updating submission system to shorten the period of checking,and strengthening the editing management and service consciousness, etc.
2018, 39(1): 113-117.
doi: 10.16779/j.cnki.1003-5508.2018.01.024
Abstract:
Studies were made of the dynamics of forest tesources,the existing problems,and management countermeasures have been studied,through the collection of historical data and survey research of Jiange County in the mountain area of northern Sichuan Basin.Forest nanagement methods have been put forward,including stand improvement,forest-fire prvention,and pest control,aiming to benefit the sustainable management of mountain forests in this area.
Studies were made of the dynamics of forest tesources,the existing problems,and management countermeasures have been studied,through the collection of historical data and survey research of Jiange County in the mountain area of northern Sichuan Basin.Forest nanagement methods have been put forward,including stand improvement,forest-fire prvention,and pest control,aiming to benefit the sustainable management of mountain forests in this area.
2018, 39(1): 118-121.
doi: 10.16779/j.cnki.1003-5508.2018.01.025
Abstract:
A thorough analysis was given on the internal advantages and disadvantages as well as external opportunities and threats in developing the ecotourism of Nanhe River National Wetland Park in Sichuan by using the method of SWOT,and the conclusion was drawn that the ecotourism of Nanhe River National Wetland Park in Sichuan belonged to the SO type,suitable for the developing strategy.Therefore,the sustainable development strategies were proposed about the Ecotourism.
A thorough analysis was given on the internal advantages and disadvantages as well as external opportunities and threats in developing the ecotourism of Nanhe River National Wetland Park in Sichuan by using the method of SWOT,and the conclusion was drawn that the ecotourism of Nanhe River National Wetland Park in Sichuan belonged to the SO type,suitable for the developing strategy.Therefore,the sustainable development strategies were proposed about the Ecotourism.
2018, 39(1): 122-125.
doi: 10.16779/j.cnki.1003-5508.2018.01.026
Abstract:
According to the status quo of forest fire barrier system in key forest areas in Lizhou, the current problems were analyzed such as single tree species, simple stand structure, complex outdoor fire source and low-density biological barrier zone. The countermeasures were put forward including desification of barrier network, and establishment of Forest Belts. At the same time, the network level of fireproof forest, tree species selection, structure and configuration of fireproof forest belts were explored. The fireproof forest zones were divided into two levels for building. The new fire prevention forest network zone was designed according to the local conditions and reasonable layout, by obviously mproving the density of the barrier network and the more even distribution of the obstructing network, so as to truly improve the comprehensive forest fire protection capability in Lizhou District, and reduce the hidden danger of forest fires.
According to the status quo of forest fire barrier system in key forest areas in Lizhou, the current problems were analyzed such as single tree species, simple stand structure, complex outdoor fire source and low-density biological barrier zone. The countermeasures were put forward including desification of barrier network, and establishment of Forest Belts. At the same time, the network level of fireproof forest, tree species selection, structure and configuration of fireproof forest belts were explored. The fireproof forest zones were divided into two levels for building. The new fire prevention forest network zone was designed according to the local conditions and reasonable layout, by obviously mproving the density of the barrier network and the more even distribution of the obstructing network, so as to truly improve the comprehensive forest fire protection capability in Lizhou District, and reduce the hidden danger of forest fires.
2018, 39(1): 126-128.
doi: 10.16779/j.cnki.1003-5508.2018.01.027
Abstract:
Walnut was a kind of important developing economical trees in Cangxi county. Through the popularization and application of grafting seedling technology, the purpose was realized of optimizing walnut quality, promoting the early and high yield, which provided reliable technical support for the rapid development of walnut industry in Cangxi county.
Walnut was a kind of important developing economical trees in Cangxi county. Through the popularization and application of grafting seedling technology, the purpose was realized of optimizing walnut quality, promoting the early and high yield, which provided reliable technical support for the rapid development of walnut industry in Cangxi county.
