2015 Vol. 36 Issue 5
2015 Vol. 36, No. 5
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2015, 36(5): 1-6.
doi: 10.16779/j.cnki.1003-5508.2015.05.001
Abstract:
In this paper,three new species of bamboos of sympodial rhizome were rrported in China. Bambusa dahuazhu and Bambusa deformis were from Changning,Sichuan. A new species of Yushania panxianesis was from Southwestern Guizhou.
In this paper,three new species of bamboos of sympodial rhizome were rrported in China. Bambusa dahuazhu and Bambusa deformis were from Changning,Sichuan. A new species of Yushania panxianesis was from Southwestern Guizhou.
2015, 36(5): 7-10,15.
doi: 10.16779/j.cnki.1003-5508.2015.05.002
Abstract:
The purpose of this paper is to evaluate the value of the wetland ecosystem service in Chongqing,then provide scientific basis for Chongqing wetland ecosystem management,evaluation of wetland ecosystem service and ecological compensation. Such six aspects as water adjustment,water purification,climate regulation,biodiversity protection,recreation,education,scientific research including eight indexes were selected for the evaluation of wetland ecosystem services. Through the assessment of them,the total wetland ecological benefit in Chonging was 48.134 billion Yuan in 2013, which accounted for 3.80% of GDP in Chongqing. The value of wetland water adjustment was 26.399 billion Yuan. In water purification,the worth reached 5.39 billion Yuan. The benefit of atmosphere regulation was equal to 3.851 billion Yuan. Biodiversity conservation value reached 458 million Yuan. The recreational value was 10.925 billion Yuan and the value of education and scientific research was near 1.111 billion Yuan.
The purpose of this paper is to evaluate the value of the wetland ecosystem service in Chongqing,then provide scientific basis for Chongqing wetland ecosystem management,evaluation of wetland ecosystem service and ecological compensation. Such six aspects as water adjustment,water purification,climate regulation,biodiversity protection,recreation,education,scientific research including eight indexes were selected for the evaluation of wetland ecosystem services. Through the assessment of them,the total wetland ecological benefit in Chonging was 48.134 billion Yuan in 2013, which accounted for 3.80% of GDP in Chongqing. The value of wetland water adjustment was 26.399 billion Yuan. In water purification,the worth reached 5.39 billion Yuan. The benefit of atmosphere regulation was equal to 3.851 billion Yuan. Biodiversity conservation value reached 458 million Yuan. The recreational value was 10.925 billion Yuan and the value of education and scientific research was near 1.111 billion Yuan.
2015, 36(5): 11-15.
doi: 10.16779/j.cnki.1003-5508.2015.05.003
Abstract:
To quantify the competition from above-and-below-ground plants,an experiment was conducted by use of seedlings of Idesia polycarpa. Path analysis was employed to study both the relationships between below-and-above-ground competitions, and their contribution to general competitions among individual seedlings at 3 different planting densities. The results showed that there were close relationships between below-ground biomass,above-ground biomass and total mass of Idesia polycarpa seedlings and the growing densities. With the decrease of the density,the seedling biomass increased while each part of the competition index fell. The above-ground competition index was greater than the underground at the same planting density. Due to the interactions between each part as the plants grew,the correlations among competition indexes were significant coefficients of path analysis,at 3 planting densities,showing that the direct influence intensity of above-ground competition on general competition wafted from 0.5536 to 0.6533,significantly greater than 0.4802~0.6228 of the underground competition. With the decrease of the density, the above-ground-and-below-ground competitions were intense, however, the above-ground competition had an important influence on the general competition.
To quantify the competition from above-and-below-ground plants,an experiment was conducted by use of seedlings of Idesia polycarpa. Path analysis was employed to study both the relationships between below-and-above-ground competitions, and their contribution to general competitions among individual seedlings at 3 different planting densities. The results showed that there were close relationships between below-ground biomass,above-ground biomass and total mass of Idesia polycarpa seedlings and the growing densities. With the decrease of the density,the seedling biomass increased while each part of the competition index fell. The above-ground competition index was greater than the underground at the same planting density. Due to the interactions between each part as the plants grew,the correlations among competition indexes were significant coefficients of path analysis,at 3 planting densities,showing that the direct influence intensity of above-ground competition on general competition wafted from 0.5536 to 0.6533,significantly greater than 0.4802~0.6228 of the underground competition. With the decrease of the density, the above-ground-and-below-ground competitions were intense, however, the above-ground competition had an important influence on the general competition.
2015, 36(5): 16-20.
doi: 10.16779/j.cnki.1003-5508.2015.05.004
Abstract:
Thie niche is an important research object of ecology. Niche breadth,niche overlap and niche similarity are used as important indicators to measure the relationship between niche species. Dry river valley areas belong to fragile ecosystems and particularly serious degradated regions,and their vegetation restoration is very difficult. Evaluation of different resources and environmental adaptability of shrub populations in the arid valley area and competitive relationship between ecology and species similarity among populations of shrub can be used to screen out pioneer species in favor of the restoration of vegetation in arid valleys. Then niche width of native shrubs is selected and supplemented with their small populations or similar niche overlap than small populations of associated species in ovder to reduce interspecific competition,which is conducive to the formation of a stable community,and ultimately achieving the purpose of the vegetation recovery.
Thie niche is an important research object of ecology. Niche breadth,niche overlap and niche similarity are used as important indicators to measure the relationship between niche species. Dry river valley areas belong to fragile ecosystems and particularly serious degradated regions,and their vegetation restoration is very difficult. Evaluation of different resources and environmental adaptability of shrub populations in the arid valley area and competitive relationship between ecology and species similarity among populations of shrub can be used to screen out pioneer species in favor of the restoration of vegetation in arid valleys. Then niche width of native shrubs is selected and supplemented with their small populations or similar niche overlap than small populations of associated species in ovder to reduce interspecific competition,which is conducive to the formation of a stable community,and ultimately achieving the purpose of the vegetation recovery.
2015, 36(5): 21-24.
doi: 10.16779/j.cnki.1003-5508.2015.05.005
Abstract:
The variability is rich among wild Dipsacus asperoides populations. The morphological characters of aboveground and underground parts form 9 major factors of character differences within wild populations. Aboveground parts,such as stem height,length of basal leafstalk,area and aspect ratio of basal leaf, the number and area of involucre of single plant. Underground parts include root weight,root number,content of active component in the dry,and so on. Regression analysis disdays a significant relationship in the characters of aboveground parts and root weight. It is better to choose the one with strong stem,long length of basal leafstalk,a long and narrow leaf,a big number and volume of involucre of single plant as high quality seeds to collect seeds. There is a strong correlation in morphological characters of wild Dipsacus asperoides populations. 9 wild populations were classified into 2 groups. One was Ge Sa-la Population,its content of active component in the dry was the highest,the other was Yong Xing Population,its root was the heaviest. Both populations could be used as high quality seeds.
The variability is rich among wild Dipsacus asperoides populations. The morphological characters of aboveground and underground parts form 9 major factors of character differences within wild populations. Aboveground parts,such as stem height,length of basal leafstalk,area and aspect ratio of basal leaf, the number and area of involucre of single plant. Underground parts include root weight,root number,content of active component in the dry,and so on. Regression analysis disdays a significant relationship in the characters of aboveground parts and root weight. It is better to choose the one with strong stem,long length of basal leafstalk,a long and narrow leaf,a big number and volume of involucre of single plant as high quality seeds to collect seeds. There is a strong correlation in morphological characters of wild Dipsacus asperoides populations. 9 wild populations were classified into 2 groups. One was Ge Sa-la Population,its content of active component in the dry was the highest,the other was Yong Xing Population,its root was the heaviest. Both populations could be used as high quality seeds.
2015, 36(5): 25-29.
doi: 10.16779/j.cnki.1003-5508.2015.05.006
Abstract:
The mammals in the Jiudingshan Nature Reserve were surveyed from 2013 to 2015. It was found that there were 82 species belonging to 27 families,4 orders. Analysis results showed that in the Reserve, 62 species belonged to Oriental realm,14 species belonged Palaeartic realm and 6 species belonged widely distributed species. The Oriental reatm species were dominat. Among them,7 species were national firstgrade protected animals and 13 species were national second-grade protected animals in the Reserve.
The mammals in the Jiudingshan Nature Reserve were surveyed from 2013 to 2015. It was found that there were 82 species belonging to 27 families,4 orders. Analysis results showed that in the Reserve, 62 species belonged to Oriental realm,14 species belonged Palaeartic realm and 6 species belonged widely distributed species. The Oriental reatm species were dominat. Among them,7 species were national firstgrade protected animals and 13 species were national second-grade protected animals in the Reserve.
2015, 36(5): 30-36,78.
doi: 10.16779/j.cnki.1003-5508.2015.05.007
Abstract:
In order to know the relationship between birdstrikes and avian community,A survey was conducted on avian community distributed in three types of habitats in Jiangbei Airport and nearby areas from March,2010 to February,2011. Analysis was made of the avian community and the bird-strike species during 2009 to 2013 at Jiangbei Airport. The results showed that the similarity index of avain communities and bird-strike species were very low,the grouping birds in the airfield area tended to be the high threatening birds,such as Alauda gulgula,Hirundo rustica,Hirundo daurica,Columba domestica,Passer montanus,etc. The high-density birds such as swallows,sparrows,pigeons etc. would go into the airfield area, thue being the highly threatening birds,but the typical shrub forest birds such as the Pycnonotus sinensis, Garrulax sannio,grosbeak etc. normally would not go into the airfield area,they couldn't be the bird-striking birds. The migration birds were the most threatening species at the Jiangbei Airport. Based on the results,some mitigation measures were put forward for reducing birdstrikes at the end of this paper.
In order to know the relationship between birdstrikes and avian community,A survey was conducted on avian community distributed in three types of habitats in Jiangbei Airport and nearby areas from March,2010 to February,2011. Analysis was made of the avian community and the bird-strike species during 2009 to 2013 at Jiangbei Airport. The results showed that the similarity index of avain communities and bird-strike species were very low,the grouping birds in the airfield area tended to be the high threatening birds,such as Alauda gulgula,Hirundo rustica,Hirundo daurica,Columba domestica,Passer montanus,etc. The high-density birds such as swallows,sparrows,pigeons etc. would go into the airfield area, thue being the highly threatening birds,but the typical shrub forest birds such as the Pycnonotus sinensis, Garrulax sannio,grosbeak etc. normally would not go into the airfield area,they couldn't be the bird-striking birds. The migration birds were the most threatening species at the Jiangbei Airport. Based on the results,some mitigation measures were put forward for reducing birdstrikes at the end of this paper.
2015, 36(5): 37-40.
doi: 10.16779/j.cnki.1003-5508.2015.05.008
Abstract:
Toona ciliata var. pubescens is an endemic and rare wood species and is listed as endangered species under state protection (category Ⅱ). Investigation was made on the distribution of toona ciliata var. pubescens resources in Panxi areas and analysis was made of its resource distribution, distribution characteristics and resource stocks. The results showed that Panxi area had fower toona ciliata var. pubescens resources. And they were scattered with about dozens of strains,and were mainly distributed in Dechang,Yanbian and Miyi. Their natural regeneration ability was poorer,therefore some protection measures should be taken.
Toona ciliata var. pubescens is an endemic and rare wood species and is listed as endangered species under state protection (category Ⅱ). Investigation was made on the distribution of toona ciliata var. pubescens resources in Panxi areas and analysis was made of its resource distribution, distribution characteristics and resource stocks. The results showed that Panxi area had fower toona ciliata var. pubescens resources. And they were scattered with about dozens of strains,and were mainly distributed in Dechang,Yanbian and Miyi. Their natural regeneration ability was poorer,therefore some protection measures should be taken.
2015, 36(5): 41-55.
doi: 10.16779/j.cnki.1003-5508.2015.05.009
Abstract:
Baihe Nature Reserve in sichuan province is mainly to protect the giant panda (Ailuropoda melanoleuca) and Sichuan golden monkeys (Rhinopithecus roxellana),and is one of the earliest reserves in Sichuan. The investigation was conducted on the plants in the protected area. The results showed that there were three kinds of national grade I protection plants,gingko,Taxus chinensis and Kingdonia uniflora.,30 species of grade Ⅱ protection plants. Vegetation could be divided into six main vegetation types,20 formation groups and 32 formations.
Baihe Nature Reserve in sichuan province is mainly to protect the giant panda (Ailuropoda melanoleuca) and Sichuan golden monkeys (Rhinopithecus roxellana),and is one of the earliest reserves in Sichuan. The investigation was conducted on the plants in the protected area. The results showed that there were three kinds of national grade I protection plants,gingko,Taxus chinensis and Kingdonia uniflora.,30 species of grade Ⅱ protection plants. Vegetation could be divided into six main vegetation types,20 formation groups and 32 formations.
2015, 36(5): 56-61.
doi: 10.16779/j.cnki.1003-5508.2015.05.010
Abstract:
During the past decades,the ecological impact of hydropower development has been drawing an increasing attention worldwide. In the mountainous area of southwest China,numerous studies have reported that the increasing dams are threatening the local biodiversity. In order to understand the effect of dams on native small vertebrate community,pitfall trips were used to survey the community composition, abundance,and distribution pattern of small vertebrates crossing three sampling habitats:the dam construction area,upstream and downstream areas of the dam. The study was conducted from April to June, 2010 in the Sier River basin within the Xuebaoding National Nature Reserve,Sichuan Province. 19 pitfall traps were set up and 117 animals of 18 species were captured with a survey effort of 1 140 trap-nights. They belongled to 9 families,5 orders,3 classes. The small vertebrates captured during the survey included 8 amphibian species (29 individuals,24.8%),8 mammal species (63 individuals,53.8%) and 2 reptile species (25 individuals,21.4%). Five dominant species (85 individuals) accounted for the majority (72.6%) of captured animals:Sorex minutus,Sphenomorphus indicus,Rattus norvegicus,Bufo andrewsi and Bufo gargarizans. The structure pattern of the community fitted the negative distribution. The animal abundance of the construction area was significantly lower than that of the downstream area,and the species richness of the construction area was significantly lower than that of the upstream area. The results indicated that the construction of minor-dam had a negative impact on the local community of small vertebrates. This study provided the baseline for evaluating the ecological impact of minor-dam construction and developing future conservation strategies accordingly.
During the past decades,the ecological impact of hydropower development has been drawing an increasing attention worldwide. In the mountainous area of southwest China,numerous studies have reported that the increasing dams are threatening the local biodiversity. In order to understand the effect of dams on native small vertebrate community,pitfall trips were used to survey the community composition, abundance,and distribution pattern of small vertebrates crossing three sampling habitats:the dam construction area,upstream and downstream areas of the dam. The study was conducted from April to June, 2010 in the Sier River basin within the Xuebaoding National Nature Reserve,Sichuan Province. 19 pitfall traps were set up and 117 animals of 18 species were captured with a survey effort of 1 140 trap-nights. They belongled to 9 families,5 orders,3 classes. The small vertebrates captured during the survey included 8 amphibian species (29 individuals,24.8%),8 mammal species (63 individuals,53.8%) and 2 reptile species (25 individuals,21.4%). Five dominant species (85 individuals) accounted for the majority (72.6%) of captured animals:Sorex minutus,Sphenomorphus indicus,Rattus norvegicus,Bufo andrewsi and Bufo gargarizans. The structure pattern of the community fitted the negative distribution. The animal abundance of the construction area was significantly lower than that of the downstream area,and the species richness of the construction area was significantly lower than that of the upstream area. The results indicated that the construction of minor-dam had a negative impact on the local community of small vertebrates. This study provided the baseline for evaluating the ecological impact of minor-dam construction and developing future conservation strategies accordingly.
2015, 36(5): 62-66.
doi: 10.16779/j.cnki.1003-5508.2015.05.011
Abstract:
The survey was made of diseases and insect pests of walnuts in Panzhihua City,and then classified diagnosis was conducted on them. The results showed that there were 15 kinds of insect pests,and the main insect pests were Limacodidae,Cerambycidae and scale insects; There were 7 kinds of diseases,and main diseases were brown spot,branch blight disease,plaster disease and powdery mildew. In this paper, analysis was made of the reasons of the main diseases and insect pests of walnuts,Emphasis was laid on the popular and heavier diseases and insect pests,and the corresponding prevention and cure methods were also put forward.
The survey was made of diseases and insect pests of walnuts in Panzhihua City,and then classified diagnosis was conducted on them. The results showed that there were 15 kinds of insect pests,and the main insect pests were Limacodidae,Cerambycidae and scale insects; There were 7 kinds of diseases,and main diseases were brown spot,branch blight disease,plaster disease and powdery mildew. In this paper, analysis was made of the reasons of the main diseases and insect pests of walnuts,Emphasis was laid on the popular and heavier diseases and insect pests,and the corresponding prevention and cure methods were also put forward.
2015, 36(5): 67-71.
doi: 10.16779/j.cnki.1003-5508.2015.05.012
Abstract:
In this paper,a new technology of vegetation recovery was proposed based on the principle of water-self supporting of vegetation community. The core of the technology was to make full use of the instinct of the rehabitaion and adaption of vegetation to the environment,and on the basis of species selection,soil improvement and underlying surface improvement were done to create a proper living conditions for the survival of the vegetation so that the vegetation could give full play to the function of the moisture self-supporting to overcome the drought environment and be able to survive. Ther results showed that the new-proposed vegetation restoration technology was feasible.
In this paper,a new technology of vegetation recovery was proposed based on the principle of water-self supporting of vegetation community. The core of the technology was to make full use of the instinct of the rehabitaion and adaption of vegetation to the environment,and on the basis of species selection,soil improvement and underlying surface improvement were done to create a proper living conditions for the survival of the vegetation so that the vegetation could give full play to the function of the moisture self-supporting to overcome the drought environment and be able to survive. Ther results showed that the new-proposed vegetation restoration technology was feasible.
2015, 36(5): 72-74,55.
doi: 10.16779/j.cnki.1003-5508.2015.05.013
Abstract:
The Larch mature zygotic embryos were taken as the explants. They were disinfected according to different treatment methods,and induced by use of different medium and hormone types and concentration,then the callus volume were calculated. Statistical analysis results showed that the peeled seeds were washed with water for 24 hours~48 hours,disinfected in 70% alcohol for 1 minute and disinfected into 4% NaClO for 10 minutes,and then the embryo was stripped out in the 0.5% NaClO disinfection for 2 minutes and the suvival rate of embryos was the highest; In the light conditions,MS medium was good medium for callus induction. It could be seen that 2.0 mg·L-1 2,4-D + 1.0 mg·L-1 6-BA or 1.0 mg·L-1 NAA + 0.5 mg·L-1 6-BA were the best hormone combination.
The Larch mature zygotic embryos were taken as the explants. They were disinfected according to different treatment methods,and induced by use of different medium and hormone types and concentration,then the callus volume were calculated. Statistical analysis results showed that the peeled seeds were washed with water for 24 hours~48 hours,disinfected in 70% alcohol for 1 minute and disinfected into 4% NaClO for 10 minutes,and then the embryo was stripped out in the 0.5% NaClO disinfection for 2 minutes and the suvival rate of embryos was the highest; In the light conditions,MS medium was good medium for callus induction. It could be seen that 2.0 mg·L-1 2,4-D + 1.0 mg·L-1 6-BA or 1.0 mg·L-1 NAA + 0.5 mg·L-1 6-BA were the best hormone combination.
2015, 36(5): 75-78.
doi: 10.16779/j.cnki.1003-5508.2015.05.014
Abstract:
Whiteflower lily (Lilium leucanthum) scales were used as explants for tissue culture in vitro. Researches were conducted on the screening of whiteflower lily' primary culture medium,subculture medium and the medium of healthy seedling rooting in order to establish a suitable system of whiteflower lily tissue culture and rapid propagation. The results showed that the optimum medium of primary culture was MS + 1.5 mg·L-1 6-BA + 0.2 mg·L-1 NAA,the optimum proliferation medium for callus and buds was MS + 1.0 mg·L-1 6-BA + 0.2 mg·L-1 NAA. And the appropriate medium for rooting was 1/2MS + 0.5 mg·L-1 IBA.
Whiteflower lily (Lilium leucanthum) scales were used as explants for tissue culture in vitro. Researches were conducted on the screening of whiteflower lily' primary culture medium,subculture medium and the medium of healthy seedling rooting in order to establish a suitable system of whiteflower lily tissue culture and rapid propagation. The results showed that the optimum medium of primary culture was MS + 1.5 mg·L-1 6-BA + 0.2 mg·L-1 NAA,the optimum proliferation medium for callus and buds was MS + 1.0 mg·L-1 6-BA + 0.2 mg·L-1 NAA. And the appropriate medium for rooting was 1/2MS + 0.5 mg·L-1 IBA.
2015, 36(5): 79-83.
doi: 10.16779/j.cnki.1003-5508.2015.05.015
Abstract:
Analysis was made of the growth factors and correlation of diameter,tree height,height under branch and crown width of Schima superba in Huangmian Forest Farm in northern Guangxi. The results showed that,the diameter would not increase along with the increase of height under branch. Under the same diameter and different site conditions,the change of height under branch was similar to tree height. The growth of Schima superba at 660 metres above sea level was lower than the growth at elevations below 420 meters. Afforestation density had an obvious influence on the growth of Schima superba. Afforestation density of 2 m×2 m row spacing was suitable for Schima superba planting. Before platnting,some ways should be adopted to make trees grow well on the high ridge and the firebreak tree belt. Schima superba trees were apparently bifurcated in the process of naturally growing,thus some measures,such as thinning and pruning,should be taken to control the stand density.
Analysis was made of the growth factors and correlation of diameter,tree height,height under branch and crown width of Schima superba in Huangmian Forest Farm in northern Guangxi. The results showed that,the diameter would not increase along with the increase of height under branch. Under the same diameter and different site conditions,the change of height under branch was similar to tree height. The growth of Schima superba at 660 metres above sea level was lower than the growth at elevations below 420 meters. Afforestation density had an obvious influence on the growth of Schima superba. Afforestation density of 2 m×2 m row spacing was suitable for Schima superba planting. Before platnting,some ways should be adopted to make trees grow well on the high ridge and the firebreak tree belt. Schima superba trees were apparently bifurcated in the process of naturally growing,thus some measures,such as thinning and pruning,should be taken to control the stand density.
2015, 36(5): 84-87.
doi: 10.16779/j.cnki.1003-5508.2015.05.016
Abstract:
2015, 36(5): 88-90.
doi: 10.16779/j.cnki.1003-5508.2015.05.017
Abstract:
In this paper,the research was conducted on cutting propagation of S. mukorossia,and the main factors included the lignification degree of cutting wood,concentration of GGR and ABT and soaking time. The results showed that the lignification cutting wood could produce the most root systems; GGR(concentration,200 ppm) immersion for 60 minutes or ABT (concentration,400 mg) soaking for 20 minutes could significantly promote the S. mukorossia rooting,and the survival rate was the highest. The survival rate reached 91% and 94% respectively.
In this paper,the research was conducted on cutting propagation of S. mukorossia,and the main factors included the lignification degree of cutting wood,concentration of GGR and ABT and soaking time. The results showed that the lignification cutting wood could produce the most root systems; GGR(concentration,200 ppm) immersion for 60 minutes or ABT (concentration,400 mg) soaking for 20 minutes could significantly promote the S. mukorossia rooting,and the survival rate was the highest. The survival rate reached 91% and 94% respectively.
2015, 36(5): 91-93.
doi: 10.16779/j.cnki.1003-5508.2015.05.018
Abstract:
In this paper,the research was conducted on the seed germination characteristics of L. masteriana. The results showed that the colors of cones and seeds were orange-brown and brown,the thousand kernel weight was 2.03 g ±0.05 g; the germination rate and germination index were the highest at 20/10℃,which reached 28% and 11.11,which had the significant difference at 15/10℃ and 8/5℃,indicating that the low temperature inhibited its germination. At 20/10℃,the light condition had no influence on its germination.
In this paper,the research was conducted on the seed germination characteristics of L. masteriana. The results showed that the colors of cones and seeds were orange-brown and brown,the thousand kernel weight was 2.03 g ±0.05 g; the germination rate and germination index were the highest at 20/10℃,which reached 28% and 11.11,which had the significant difference at 15/10℃ and 8/5℃,indicating that the low temperature inhibited its germination. At 20/10℃,the light condition had no influence on its germination.
2015, 36(5): 94-97.
doi: 10.16779/j.cnki.1003-5508.2015.05.019
Abstract:
Pyrus betulifolia dormant seeds were soaked and treated for 24 hours with the different concentrations of Sodium nitroprusside (SNP), 2-phenyl-4, 4, 5, 5-tetramethylimidazo-line-1-oxyl-3-oxide (PTIO),Sodium tungstate(Na2WO4) and ZhiNG-n-L-arginine methyl ester (L-NAME),and the percentage germination was calculated in the training process,aiming to find effects of Nitric oxide (NO) and the synthesis pathway of nitric oxide on seed dormancy of P. betulifolia. The results were as follows:NO could break the seed dormancy for germination of Pyrus betulifolia,10 mmol·L-1 of SNP treatment was better in promoting germination,the germination rate of seeds pretreated with 10 mM SNP reached 56.7%,significantly higher than the control(20.0%); In breaking the dormancy of Pyrus betulifolia seeds,NO came from nitric oxide synthase(NOS) but not Nitrate reductase(NR) pathway,the germination rate of seeds pretreated with L-NAME was 15.6%, significantly higher than the control, but Na2WO4 Pretreatment didn't have any effect.
Pyrus betulifolia dormant seeds were soaked and treated for 24 hours with the different concentrations of Sodium nitroprusside (SNP), 2-phenyl-4, 4, 5, 5-tetramethylimidazo-line-1-oxyl-3-oxide (PTIO),Sodium tungstate(Na2WO4) and ZhiNG-n-L-arginine methyl ester (L-NAME),and the percentage germination was calculated in the training process,aiming to find effects of Nitric oxide (NO) and the synthesis pathway of nitric oxide on seed dormancy of P. betulifolia. The results were as follows:NO could break the seed dormancy for germination of Pyrus betulifolia,10 mmol·L-1 of SNP treatment was better in promoting germination,the germination rate of seeds pretreated with 10 mM SNP reached 56.7%,significantly higher than the control(20.0%); In breaking the dormancy of Pyrus betulifolia seeds,NO came from nitric oxide synthase(NOS) but not Nitrate reductase(NR) pathway,the germination rate of seeds pretreated with L-NAME was 15.6%, significantly higher than the control, but Na2WO4 Pretreatment didn't have any effect.
2015, 36(5): 98-100.
doi: 10.16779/j.cnki.1003-5508.2015.05.020
Abstract:
Four different fertilizers were applied for conducting 15 months of Szemao pine tree height and ground diameter growth test. The results showed that among the four different fertilizers,treatment 1 could get a better tree height and ground diameter growth,namely the processing of 200 g fertilizer, but the offect of treatment 4 was poor,namely,no fertilizcr was used. 4 treatments displayed extremely significant differences. Within the scope of the maximum rate of 200 g,tree height and ground diameter would increase with the increase of fertilizer rate.
Four different fertilizers were applied for conducting 15 months of Szemao pine tree height and ground diameter growth test. The results showed that among the four different fertilizers,treatment 1 could get a better tree height and ground diameter growth,namely the processing of 200 g fertilizer, but the offect of treatment 4 was poor,namely,no fertilizcr was used. 4 treatments displayed extremely significant differences. Within the scope of the maximum rate of 200 g,tree height and ground diameter would increase with the increase of fertilizer rate.
2015, 36(5): 101-102,71.
doi: 10.16779/j.cnki.1003-5508.2015.05.021
Abstract:
By adopting single factor completely randomized block design,studies were made of the influence of different fertilizers on the growth of giant eucalyptus trees. The results showed that special-use eucalyptus fertilizer had the best effect,after the third applying fertilizer,the plant height,DBH and volume reached the maximum value,respectively being 21.73 m,13.86 cm and 0.158 m3 per plant, significantly higher than those of the control and other processings.
By adopting single factor completely randomized block design,studies were made of the influence of different fertilizers on the growth of giant eucalyptus trees. The results showed that special-use eucalyptus fertilizer had the best effect,after the third applying fertilizer,the plant height,DBH and volume reached the maximum value,respectively being 21.73 m,13.86 cm and 0.158 m3 per plant, significantly higher than those of the control and other processings.
2015, 36(5): 103-106.
doi: 10.16779/j.cnki.1003-5508.2015.05.022
Abstract:
Five varieties of precocious walnuts were selected for conducting the introduction culture in Luding County in Ganzi Prefecture. Through investigation and observation in 3 years,the results showed that the survival rates and preserving rates of seedlings among different varieties all reached extremely significant level,but the difference of different experimental fields was not significant. The phonological period of introduced varieties was earlier than that of the original variety. Xiangling Variety and Yanyuanzao Variety showed good suitability. And their early maturing and resistance properties were significantly superior to the original variety. Especially,the ecological adaptation of Yanyuanzao Variety was strong,and the growth potential was vigorous,and the early maturing was good,which was the precocious walnut variety suiting to be planted in Ganzi Prefecture.
Five varieties of precocious walnuts were selected for conducting the introduction culture in Luding County in Ganzi Prefecture. Through investigation and observation in 3 years,the results showed that the survival rates and preserving rates of seedlings among different varieties all reached extremely significant level,but the difference of different experimental fields was not significant. The phonological period of introduced varieties was earlier than that of the original variety. Xiangling Variety and Yanyuanzao Variety showed good suitability. And their early maturing and resistance properties were significantly superior to the original variety. Especially,the ecological adaptation of Yanyuanzao Variety was strong,and the growth potential was vigorous,and the early maturing was good,which was the precocious walnut variety suiting to be planted in Ganzi Prefecture.
2015, 36(5): 107-109,87.
doi: 10.16779/j.cnki.1003-5508.2015.05.023
Abstract:
Traditionally,bamboo cultivation should be conducted in the spring. after the spring,its planting survival rate becomes very low. Through years of trials,the resuts showed that the sympodial bamboo could be sheughed by delayed cultivation. By using this technique,the planting time of sympodial bamboos could be prolonged for about 4 months in order to avoid drought,save water,keep the earth moisture as well as control the cost and improve the survival rate of afforestation. This technique had reference and application value in afforestation and landscaping.
Traditionally,bamboo cultivation should be conducted in the spring. after the spring,its planting survival rate becomes very low. Through years of trials,the resuts showed that the sympodial bamboo could be sheughed by delayed cultivation. By using this technique,the planting time of sympodial bamboos could be prolonged for about 4 months in order to avoid drought,save water,keep the earth moisture as well as control the cost and improve the survival rate of afforestation. This technique had reference and application value in afforestation and landscaping.
2015, 36(5): 110-111,90.
doi: 10.16779/j.cnki.1003-5508.2015.05.024
Abstract:
Studies were made of effects of five different formula fertilizers on the growth of young Elaeocarpus sylvestris plantations. The results showed that 5 kinds of different formula fertilizer had a very significant influence on the tree height and ground diameter growth of Elaeocarpus sylvestris. Treatment 1 showed a better tree height and ground diameter growth,namely 100 g urea + 200 g superphosphate + 50 g sulfuric acid potassium.
Studies were made of effects of five different formula fertilizers on the growth of young Elaeocarpus sylvestris plantations. The results showed that 5 kinds of different formula fertilizer had a very significant influence on the tree height and ground diameter growth of Elaeocarpus sylvestris. Treatment 1 showed a better tree height and ground diameter growth,namely 100 g urea + 200 g superphosphate + 50 g sulfuric acid potassium.
2015, 36(5): 112-115.
doi: 10.16779/j.cnki.1003-5508.2015.05.025
Abstract:
Betula alnoides is one of fast-growing timber species in tropical and south subtropical zones of China. The timber is of great use and economical value,thus resulting in a heated discussion in development and utilization among scholars in recent years. In this paper,by cunsulting and analysing the literature information,a description was made of the biological and ecological features of Betula alnoides,its status of traditional and asexual cultivation,as well as its forestation and application technology. Besides, some perspectives are also proposed.
Betula alnoides is one of fast-growing timber species in tropical and south subtropical zones of China. The timber is of great use and economical value,thus resulting in a heated discussion in development and utilization among scholars in recent years. In this paper,by cunsulting and analysing the literature information,a description was made of the biological and ecological features of Betula alnoides,its status of traditional and asexual cultivation,as well as its forestation and application technology. Besides, some perspectives are also proposed.
2015, 36(5): 116-117.
doi: 10.16779/j.cnki.1003-5508.2015.05.026
Abstract:
2015, 36(5): 118-121.
doi: 10.16779/j.cnki.1003-5508.2015.05.027
Abstract:
2015, 36(5): 122-124,115.
doi: 10.16779/j.cnki.1003-5508.2015.05.028
Abstract:
On the basis of the distribution of forestry land resources and development status of forest industry,three under-forest economic development zones in Jinyang County were divided,namely valley and low mountain zone,middle mountain zone and high mountain zone. Meanwhile,the under-forest economic development models were put forward for the three zones,and they would be the useful reference to guiding the economic development models under forests in the county.
On the basis of the distribution of forestry land resources and development status of forest industry,three under-forest economic development zones in Jinyang County were divided,namely valley and low mountain zone,middle mountain zone and high mountain zone. Meanwhile,the under-forest economic development models were put forward for the three zones,and they would be the useful reference to guiding the economic development models under forests in the county.
2015, 36(5): 125-128,100.
doi: 10.16779/j.cnki.1003-5508.2015.05.029
Abstract:
Camellia oleifera is known as the Oriental olive oil and is considered as one of the first healthcare plant oils by the international food and agriculture organization (IFAO). In recent years,under the influence of industrial economic development and the national policy vigorously endorsement,the Camellia industry in Fushun country,Zigong City of Sichuan province,has become one of the leading industries. However,some problems appearing in the development progress also hindered the further development of the Camellia industry in Fushun country. Based on the above background,preliminary investigations were made of the development present situation of Camellia industry in Fushun County. Through analyzing the current situation of Camellia industry,a summary description was given of the advantage and disadvantage of Camellia industry in the present,aiming to put forward scientific references for the future development of Camellia industry in the region.
Camellia oleifera is known as the Oriental olive oil and is considered as one of the first healthcare plant oils by the international food and agriculture organization (IFAO). In recent years,under the influence of industrial economic development and the national policy vigorously endorsement,the Camellia industry in Fushun country,Zigong City of Sichuan province,has become one of the leading industries. However,some problems appearing in the development progress also hindered the further development of the Camellia industry in Fushun country. Based on the above background,preliminary investigations were made of the development present situation of Camellia industry in Fushun County. Through analyzing the current situation of Camellia industry,a summary description was given of the advantage and disadvantage of Camellia industry in the present,aiming to put forward scientific references for the future development of Camellia industry in the region.
2015, 36(5): 129-130,29.
doi: 10.16779/j.cnki.1003-5508.2015.05.030
Abstract:
