2014 Vol. 35 Issue 1
2014 Vol. 35, No. 1
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2014, 35(1): 1-5.
doi: 10.16779/j.cnki.1003-5508.2014.01.001
Abstract:
In this paper,researches are conducted on biodiversity,structure,species composition and floristic geographical composition of Tetracentron sinense community on Mt. Emei by investigating 5 plots, with each plot having a size of 20 m×30 m. The obtained main results have shown that 1) there are 136 vascular plant species belonging to 105 genera of 66 families,in which angiosperm plants are composed of 121 species which belong to 94 genera of 59 families,accounting for 88.97% in total species number. 2) The community contains tree layer,shrub layer,herb layer and inter stratum plants. And the dominant species of the tree layer are Tetracentron sinense,Prunus padus,Acer laxiflorum and Acer palmatum. The species of the shrub layer mainly belong to the families of Alangiaceae,Lardizabalaceae,Theaceae and Poaceae. In the forest floor,the species belong to the general families of Urticaceae,Liliaceae,Dryopteridaceae and so on. And the inter stratum plant contains 3 species. 3) The order for the Margalef index,ShannonWiener index and Simpson index is herb layer > tree layer > shrub layer,while the order for Pielou index is herb layer > shrub layer > tree layer. 4) The curves of species abundance nature logarithm vs species number are significantly different in the tree,shrub and herbaceous layers. 5) On the composition of geographical elements,temperate element takes a predominated position with 56.84% in total genus number in the community respectively,while tropical-subtropical elements account for 28.43%.
In this paper,researches are conducted on biodiversity,structure,species composition and floristic geographical composition of Tetracentron sinense community on Mt. Emei by investigating 5 plots, with each plot having a size of 20 m×30 m. The obtained main results have shown that 1) there are 136 vascular plant species belonging to 105 genera of 66 families,in which angiosperm plants are composed of 121 species which belong to 94 genera of 59 families,accounting for 88.97% in total species number. 2) The community contains tree layer,shrub layer,herb layer and inter stratum plants. And the dominant species of the tree layer are Tetracentron sinense,Prunus padus,Acer laxiflorum and Acer palmatum. The species of the shrub layer mainly belong to the families of Alangiaceae,Lardizabalaceae,Theaceae and Poaceae. In the forest floor,the species belong to the general families of Urticaceae,Liliaceae,Dryopteridaceae and so on. And the inter stratum plant contains 3 species. 3) The order for the Margalef index,ShannonWiener index and Simpson index is herb layer > tree layer > shrub layer,while the order for Pielou index is herb layer > shrub layer > tree layer. 4) The curves of species abundance nature logarithm vs species number are significantly different in the tree,shrub and herbaceous layers. 5) On the composition of geographical elements,temperate element takes a predominated position with 56.84% in total genus number in the community respectively,while tropical-subtropical elements account for 28.43%.
2014, 35(1): 6-13.
doi: 10.16779/j.cnki.1003-5508.2014.01.002
Abstract:
Researches were conducted on the inter-population and intra-population variation of seeds of 12 representative natural Aleuvites fordii populations in Sichuan and Chongqing areas. Ststistical analysis such as variance analysis,multiple comparison,variation coefficient comparison,repeatability comparison and correlation analysis were adopted to explore the character of fourteen kinds of seeds. The results showed that the intraspecific seed character of inter-population and intra-population of Aleuvites fordii had plentiful variations. The variation of seed morphology was more stable than that of fruit morphology. The variation coefficient of seed morphology ranged from 6.43% to 74.93%, with the average of 25.74%, which showed that variation of intra-population(74.26%) was higher than that of inter-population.
Researches were conducted on the inter-population and intra-population variation of seeds of 12 representative natural Aleuvites fordii populations in Sichuan and Chongqing areas. Ststistical analysis such as variance analysis,multiple comparison,variation coefficient comparison,repeatability comparison and correlation analysis were adopted to explore the character of fourteen kinds of seeds. The results showed that the intraspecific seed character of inter-population and intra-population of Aleuvites fordii had plentiful variations. The variation of seed morphology was more stable than that of fruit morphology. The variation coefficient of seed morphology ranged from 6.43% to 74.93%, with the average of 25.74%, which showed that variation of intra-population(74.26%) was higher than that of inter-population.
2014, 35(1): 14-17.
doi: 10.16779/j.cnki.1003-5508.2014.01.003
Abstract:
In this paper,studies were made of the water-holding capacity of litter layers and soil water storage capacity of typical vegetation communities, Pinus armandii Franch,Pinus tabulaeformis,Fargesia spathacea Franch,Corylus heterophylla Fisch. ex Trautv. var. sutchuenensis Franch.,Dipelta yunnanensis, Rhododendron lapponicum and Salix cupularis. The results showed that the water-holding capacity of litter layers was as follows:Dipelta yunnanensis > Corylus heterophylla Fisch. ex Trautv. var. sutchuenensis Franch. > Rhododendron lapponicum > Salix cupularis > Fargesia spathacea Franch > Pinus tabulaeformis > Pinus armandii Franch, both the water storage capacity of 0~40 cm soil layer and the integrated water storage capacity were as follows:Fargesia spathacea Franch > Rhododendron lapponicum > Corylus heterophylla Fisch. ex Trautv. var. sutchuenensis Franch. > Dipelta yunnanensis > Salix cupularis > Pinus armandii Franch > Pinus tabulaeformis.
In this paper,studies were made of the water-holding capacity of litter layers and soil water storage capacity of typical vegetation communities, Pinus armandii Franch,Pinus tabulaeformis,Fargesia spathacea Franch,Corylus heterophylla Fisch. ex Trautv. var. sutchuenensis Franch.,Dipelta yunnanensis, Rhododendron lapponicum and Salix cupularis. The results showed that the water-holding capacity of litter layers was as follows:Dipelta yunnanensis > Corylus heterophylla Fisch. ex Trautv. var. sutchuenensis Franch. > Rhododendron lapponicum > Salix cupularis > Fargesia spathacea Franch > Pinus tabulaeformis > Pinus armandii Franch, both the water storage capacity of 0~40 cm soil layer and the integrated water storage capacity were as follows:Fargesia spathacea Franch > Rhododendron lapponicum > Corylus heterophylla Fisch. ex Trautv. var. sutchuenensis Franch. > Dipelta yunnanensis > Salix cupularis > Pinus armandii Franch > Pinus tabulaeformis.
2014, 35(1): 18-20.
doi: 10.16779/j.cnki.1003-5508.2014.01.004
Abstract:
Chmonpbambusa. neopurpurea Yi f. lineata Yi et J. Y. Shi is a new forma. Its yong culms down internode is pale purple green with longitudinal green-lineate and culm sheaths is shorter than internode. In this paper, the first author reviewed recently the Fargesia huizeensis M. S. Sun, Y. M. Yang et H. Q. Yang,finding no binding,or collection record,and scattering in the type specimens with flower,but without fruit in the two herbariums mentioned in the issued new species original record (in the SWFC and KUN herbarium of the issued original record,this new species is not preserved by on-the-spot verification). It is confirmed that this species is F. fungosa Yi.
Chmonpbambusa. neopurpurea Yi f. lineata Yi et J. Y. Shi is a new forma. Its yong culms down internode is pale purple green with longitudinal green-lineate and culm sheaths is shorter than internode. In this paper, the first author reviewed recently the Fargesia huizeensis M. S. Sun, Y. M. Yang et H. Q. Yang,finding no binding,or collection record,and scattering in the type specimens with flower,but without fruit in the two herbariums mentioned in the issued new species original record (in the SWFC and KUN herbarium of the issued original record,this new species is not preserved by on-the-spot verification). It is confirmed that this species is F. fungosa Yi.
2014, 35(1): 21-24.
doi: 10.16779/j.cnki.1003-5508.2014.01.005
Abstract:
According to the mortality and quantity dynamics of the remnant stake population of Fargesia robusta eaten by giant pandas and cut by people from 2003 to 2010,analysis was made of the viability of clonal plants of Fargesia robusta under different disturbances. The result showed that the mortality of the remnant stake population of Fargesia robusta eaten by giant pandas was lower than that of F. robusta cut by people,and the survival strength of the fromer was longer than that of the latter,thus resulting in the different consequences in the remnant stake quantities and clonal population of Fargesia robusta.
According to the mortality and quantity dynamics of the remnant stake population of Fargesia robusta eaten by giant pandas and cut by people from 2003 to 2010,analysis was made of the viability of clonal plants of Fargesia robusta under different disturbances. The result showed that the mortality of the remnant stake population of Fargesia robusta eaten by giant pandas was lower than that of F. robusta cut by people,and the survival strength of the fromer was longer than that of the latter,thus resulting in the different consequences in the remnant stake quantities and clonal population of Fargesia robusta.
2014, 35(1): 25-30.
doi: 10.16779/j.cnki.1003-5508.2014.01.006
Abstract:
This study have shown that there are 8 genera,in including 23 species of bamboos which are distributed between 400 m~2 700 m elevation range on the Mountain Emei. And except 2 species, all the bamboos are edible for giant pandas. The experiment results for the common edible bamboos display that except the Neosinocalamus affinis, the other 8 kinds of bamboos are edible for the pandas in Mt. Emei protection center.
This study have shown that there are 8 genera,in including 23 species of bamboos which are distributed between 400 m~2 700 m elevation range on the Mountain Emei. And except 2 species, all the bamboos are edible for giant pandas. The experiment results for the common edible bamboos display that except the Neosinocalamus affinis, the other 8 kinds of bamboos are edible for the pandas in Mt. Emei protection center.
2014, 35(1): 31-35.
doi: 10.16779/j.cnki.1003-5508.2014.01.007
Abstract:
2014, 35(1): 36-39,48.
doi: 10.16779/j.cnki.1003-5508.2014.01.008
Abstract:
Investigation were made of the species, distribution, and growth situation of Eucalyptus trees and their utilizing situation of industrialization in Guangyuan. It was found that Eucalyptus robusta Smith, and Eucalyptus tereticornis Smith,etc. planted since the 1960s experienced a hazardous frost at -8℃ in 1976. Most of the survivals in the frost and the later-planted Eucalyptus trees grew at the altitudes from around 450 m to 600 m and the breast-height diameters could reach 20 cm to 50 cm. In Guangyuan,Eucalyptus robusta Smith suffered more from freezing injury and windstorm disaster than Eucalyptus tereticornis smith. The growth of Eucalyptus urophylla which was introduced for test has been affected by the freezing injury since 2007. Due to the dual effect of freezing injury and windstorm disaster,it is suggested that,exploring the frigorific mechanism of Eucalyptus can help to further develop breeding or introducing the cold-resistant, wind-resistant and fast-growing varieties which are suitable for growing in Guangyuan.
Investigation were made of the species, distribution, and growth situation of Eucalyptus trees and their utilizing situation of industrialization in Guangyuan. It was found that Eucalyptus robusta Smith, and Eucalyptus tereticornis Smith,etc. planted since the 1960s experienced a hazardous frost at -8℃ in 1976. Most of the survivals in the frost and the later-planted Eucalyptus trees grew at the altitudes from around 450 m to 600 m and the breast-height diameters could reach 20 cm to 50 cm. In Guangyuan,Eucalyptus robusta Smith suffered more from freezing injury and windstorm disaster than Eucalyptus tereticornis smith. The growth of Eucalyptus urophylla which was introduced for test has been affected by the freezing injury since 2007. Due to the dual effect of freezing injury and windstorm disaster,it is suggested that,exploring the frigorific mechanism of Eucalyptus can help to further develop breeding or introducing the cold-resistant, wind-resistant and fast-growing varieties which are suitable for growing in Guangyuan.
2014, 35(1): 40-43.
doi: 10.16779/j.cnki.1003-5508.2014.01.009
Abstract:
In this paper,a summary description is given of advances in the research of asexual propagation technology of Ficus carica,and the research status of asexual propagation technique of Ficus carica,including cutting techniques and influencing factors,grafting propagation,division propagation and tissue culture. In addition,some main existing problems are put forward,aiming to provide reference for fine variety breeding of Ficus carica.
In this paper,a summary description is given of advances in the research of asexual propagation technology of Ficus carica,and the research status of asexual propagation technique of Ficus carica,including cutting techniques and influencing factors,grafting propagation,division propagation and tissue culture. In addition,some main existing problems are put forward,aiming to provide reference for fine variety breeding of Ficus carica.
2014, 35(1): 44-48.
doi: 10.16779/j.cnki.1003-5508.2014.01.010
Abstract:
In this paper,based on large domestic and foreign literatures,a summary description is given of main determination methods of plant biomass,including traditional method,model simulation,mean biomass method,volume derived biomass and remote sensing. In addition, the advantages and disadvantages of various biomass methods are compared and a discussion is made on the development tendency of biomass determination in the future.
In this paper,based on large domestic and foreign literatures,a summary description is given of main determination methods of plant biomass,including traditional method,model simulation,mean biomass method,volume derived biomass and remote sensing. In addition, the advantages and disadvantages of various biomass methods are compared and a discussion is made on the development tendency of biomass determination in the future.
2014, 35(1): 49-51.
doi: 10.16779/j.cnki.1003-5508.2014.01.011
Abstract:
In this paper,one kind of Olea europaea plants which were introduced from 1960s were taken as female parents to produce crossing offsprings by artificial pollination,and breed disease-resistance plants from them,excellent clones were cultivated for forestation. The major forestation way was to cultivate disease-resistant seedlings for grafting excellent clones and breed disease-resistant and high-yield plants from crossing offsprings by clonal rapid propagation technology.
In this paper,one kind of Olea europaea plants which were introduced from 1960s were taken as female parents to produce crossing offsprings by artificial pollination,and breed disease-resistance plants from them,excellent clones were cultivated for forestation. The major forestation way was to cultivate disease-resistant seedlings for grafting excellent clones and breed disease-resistant and high-yield plants from crossing offsprings by clonal rapid propagation technology.
2014, 35(1): 52-55.
doi: 10.16779/j.cnki.1003-5508.2014.01.012
Abstract:
In this paper,studies were made of effects of different amount of N、P、K fertilizer on the sapling growth and chlorophyll content of superior clones of Camellia oleifera by the randomized block design in the field experiment. The results showed that combined fertilization had effects on the height, crown width and shoot growth of Camellia oleifera saplings to different degree. However, the sapling growth and chlorophyll content of young Camellia Oleifera forest were very different under the condition of different ration of fertilizer and application. Among them,the effect of treatment 7 was significantly greater than that of the other treatments. The optimum ratio of N、P、K (N:P2O5:K2O) was 10:5:2 in this test.
In this paper,studies were made of effects of different amount of N、P、K fertilizer on the sapling growth and chlorophyll content of superior clones of Camellia oleifera by the randomized block design in the field experiment. The results showed that combined fertilization had effects on the height, crown width and shoot growth of Camellia oleifera saplings to different degree. However, the sapling growth and chlorophyll content of young Camellia Oleifera forest were very different under the condition of different ration of fertilizer and application. Among them,the effect of treatment 7 was significantly greater than that of the other treatments. The optimum ratio of N、P、K (N:P2O5:K2O) was 10:5:2 in this test.
2014, 35(1): 56-58,85.
doi: 10.16779/j.cnki.1003-5508.2014.01.013
Abstract:
In order to find out the life cycle and biological habit of Dendroctonus armandi,the methods of laboratory experiment and field trial were adopted to study D. armandi. The results showed that D. armamdi would produce one generation per year or three generations in two years with obvious overlapped generations in Nanjiang. Overwintering larvae in the phloem were main,and a few number of adults and eggs were also found in winter. Overwintering larvae pupated in late March, reached maximum from April to May, adults flied in late April, reached maximum from May to June. Spawning period began in late April, and new generation of adults began to fly in July, while some larvae directly went into the overwintering phase.
In order to find out the life cycle and biological habit of Dendroctonus armandi,the methods of laboratory experiment and field trial were adopted to study D. armandi. The results showed that D. armamdi would produce one generation per year or three generations in two years with obvious overlapped generations in Nanjiang. Overwintering larvae in the phloem were main,and a few number of adults and eggs were also found in winter. Overwintering larvae pupated in late March, reached maximum from April to May, adults flied in late April, reached maximum from May to June. Spawning period began in late April, and new generation of adults began to fly in July, while some larvae directly went into the overwintering phase.
2014, 35(1): 59-60,88.
doi: 10.16779/j.cnki.1003-5508.2014.01.014
Abstract:
The irrigation experiments of Tamarindus indica were conducted in Jingu. The results showed that (1) different irrigation treatments had very obviously different effects on preservation rate, height growth and new slip rate of Tamarindus indica,and therefore indicated that the irrigation was necessary for the cultivation of T. indica in Jingu; (2) According to the changes of the preservation rate and growth amount at different times,irrigation only needed carrying out in the dry season,and once every 7 days.
The irrigation experiments of Tamarindus indica were conducted in Jingu. The results showed that (1) different irrigation treatments had very obviously different effects on preservation rate, height growth and new slip rate of Tamarindus indica,and therefore indicated that the irrigation was necessary for the cultivation of T. indica in Jingu; (2) According to the changes of the preservation rate and growth amount at different times,irrigation only needed carrying out in the dry season,and once every 7 days.
2014, 35(1): 61-62.
doi: 10.16779/j.cnki.1003-5508.2014.01.015
Abstract:
2014, 35(1): 63-64.
doi: 10.16779/j.cnki.1003-5508.2014.01.016
Abstract:
Influence of cutting slip parts on cutting rooting of Cinnamomum camphora (L.) Presl were studied through randomized block experiment design. The results showed that the effect of cutting slips at the top was the best whether they were hardwood or softwood cuttings. It is suggested that cutting slips at the top should be used at the time of cuttage of Cinnamomum camphora
Influence of cutting slip parts on cutting rooting of Cinnamomum camphora (L.) Presl were studied through randomized block experiment design. The results showed that the effect of cutting slips at the top was the best whether they were hardwood or softwood cuttings. It is suggested that cutting slips at the top should be used at the time of cuttage of Cinnamomum camphora
2014, 35(1): 65-67.
doi: 10.16779/j.cnki.1003-5508.2014.01.017
Abstract:
Studies were made of the factors influencing the rooting of Photinia serrulata cuttings in this paper. Comparative analysis and variance analysis were used to identify appropriate types of matrix Photinia serrulata cuttings, plant growth regulator concentration, age and length of cuttings. The results showed that Photinia serrulata belonged to a callus-rooting type; 8 cm~10 cm long cuttings were relatively appropriate length. The rooting rate of annual cuttings was higher than that of biennial cuttings. As for the same plant growth regulator,the rooting rate in use of the high concentration was greater than that in use of the low concentration. The brown soil was a better substrate for cuttage.
Studies were made of the factors influencing the rooting of Photinia serrulata cuttings in this paper. Comparative analysis and variance analysis were used to identify appropriate types of matrix Photinia serrulata cuttings, plant growth regulator concentration, age and length of cuttings. The results showed that Photinia serrulata belonged to a callus-rooting type; 8 cm~10 cm long cuttings were relatively appropriate length. The rooting rate of annual cuttings was higher than that of biennial cuttings. As for the same plant growth regulator,the rooting rate in use of the high concentration was greater than that in use of the low concentration. The brown soil was a better substrate for cuttage.
2014, 35(1): 68-72.
doi: 10.16779/j.cnki.1003-5508.2014.01.018
Abstract:
2014, 35(1): 73-77.
doi: 10.16779/j.cnki.1003-5508.2014.01.019
Abstract:
In this article,researches are conducted on the life lycle assessment of wood waste pellets and coal from medium density fiberboard plants. Wood waste pellets are an ideal energy instead of coal from environmental and economic aspects.
In this article,researches are conducted on the life lycle assessment of wood waste pellets and coal from medium density fiberboard plants. Wood waste pellets are an ideal energy instead of coal from environmental and economic aspects.
2014, 35(1): 78-80.
doi: 10.16779/j.cnki.1003-5508.2014.01.020
Abstract:
On the basis of investigation and analysis on vegetation, soil, hydrology and climate of the Guyu lake scenic area in Longchang County, and in combination with relevant information, some planning ideas are put forward, suitable tree species are selected for scenic natural conditions,and several configuration modes are planned. Through scientific and rational planning and high-quality construction, in the next few years,the scenic area will be built into a complete functional eco-landscape forest system with local characteristics, reasonable structure and good benefit.
On the basis of investigation and analysis on vegetation, soil, hydrology and climate of the Guyu lake scenic area in Longchang County, and in combination with relevant information, some planning ideas are put forward, suitable tree species are selected for scenic natural conditions,and several configuration modes are planned. Through scientific and rational planning and high-quality construction, in the next few years,the scenic area will be built into a complete functional eco-landscape forest system with local characteristics, reasonable structure and good benefit.
2014, 35(1): 81-85.
doi: 10.16779/j.cnki.1003-5508.2014.01.021
Abstract:
In the way of analysis with words,sentences and semantics used by Charles Jencks,the boss and brent are different with upright and high mountains,the boss and brent are more smooth in outlooks, and the slope is milder. Ths karrenfeld is like dog's tooth at the slope of brent,it usually grows at the region of chalkstone,and the lower lands between the karrenfelds are called channelling; doline,bogaz and uvala are among the mountains in karst,which are low lands. These low lands are quite different from others,and they are closed concave lands. In the words,sentences and semantics used by Charles Jeneks. there are continuous combination of boss,brent and the line of the figure of the mountain,and the line shows flowing and fluctuating. The combination of karrenbfeld,channelling and soil indicates brawniness and mystery. The doline,bogaz and uvala combined with the surrounding boss,brent and deep pool go with the psychological needs of human for surroundings and is an idea place. The periodical spring water, river,gulch and subsurface express the flow of the years and the joy of water. The combination of natural bridge and barranca is the same effect which brings excitement and shock.
In the way of analysis with words,sentences and semantics used by Charles Jencks,the boss and brent are different with upright and high mountains,the boss and brent are more smooth in outlooks, and the slope is milder. Ths karrenfeld is like dog's tooth at the slope of brent,it usually grows at the region of chalkstone,and the lower lands between the karrenfelds are called channelling; doline,bogaz and uvala are among the mountains in karst,which are low lands. These low lands are quite different from others,and they are closed concave lands. In the words,sentences and semantics used by Charles Jeneks. there are continuous combination of boss,brent and the line of the figure of the mountain,and the line shows flowing and fluctuating. The combination of karrenbfeld,channelling and soil indicates brawniness and mystery. The doline,bogaz and uvala combined with the surrounding boss,brent and deep pool go with the psychological needs of human for surroundings and is an idea place. The periodical spring water, river,gulch and subsurface express the flow of the years and the joy of water. The combination of natural bridge and barranca is the same effect which brings excitement and shock.
2014, 35(1): 86-88.
doi: 10.16779/j.cnki.1003-5508.2014.01.022
Abstract:
2014, 35(1): 89-91.
doi: 10.16779/j.cnki.1003-5508.2014.01.023
Abstract:
New records of 6 species of Ennominae in Sichuan Province are reported for the first time. The newly recorded species include Corymica arnearia,Dalima schistacearia,Krananda nepalensis,Hypochrosis baenzigeri,Ophthalmitis pertusaria and Plutodes philornis. All specimens studied are deposited in the Museum of China West Normal University (MCWNU).
New records of 6 species of Ennominae in Sichuan Province are reported for the first time. The newly recorded species include Corymica arnearia,Dalima schistacearia,Krananda nepalensis,Hypochrosis baenzigeri,Ophthalmitis pertusaria and Plutodes philornis. All specimens studied are deposited in the Museum of China West Normal University (MCWNU).
2014, 35(1): 92-96.
doi: 10.16779/j.cnki.1003-5508.2014.01.024
Abstract:
2014, 35(1): 97-98.
doi: 10.16779/j.cnki.1003-5508.2014.01.025
Abstract:
Studies were made of the soil bulk density and available nutrient status in Yibin City by field investigation and indoor analysis. The results showed that the soil bulk density of park green space, green street, attached green space could meet the demand of plant growth,and yet the soil bulk density of the road affected the plant growth for its relatively big bulk density. The available nitrogen and available potassium could meet the demand of plant growth,but the content of available phosphorus was low,thus needing supplements.
Studies were made of the soil bulk density and available nutrient status in Yibin City by field investigation and indoor analysis. The results showed that the soil bulk density of park green space, green street, attached green space could meet the demand of plant growth,and yet the soil bulk density of the road affected the plant growth for its relatively big bulk density. The available nitrogen and available potassium could meet the demand of plant growth,but the content of available phosphorus was low,thus needing supplements.
2014, 35(1): 99-101.
doi: 10.16779/j.cnki.1003-5508.2014.01.026
Abstract:
In this paper,taking Xiamen Park Expo Garden for example,according to the statistical data of many years,analysis and studies were made of the status and role of Garden Expo in city regional tourism economy in order to provide reference for the sustainable development of Garden Expo in China.
In this paper,taking Xiamen Park Expo Garden for example,according to the statistical data of many years,analysis and studies were made of the status and role of Garden Expo in city regional tourism economy in order to provide reference for the sustainable development of Garden Expo in China.
2014, 35(1): 102-104.
doi: 10.16779/j.cnki.1003-5508.2014.01.027
Abstract:
The defarming-and-reafforestation Project is a complicated social,economic and ecological systematic project. In this paper, based on the current status and problems, the direction and measures of follow-up industrial development in Pengzhou was put forward in order to consolidate the achievement of conversting cropland to forestry.
The defarming-and-reafforestation Project is a complicated social,economic and ecological systematic project. In this paper, based on the current status and problems, the direction and measures of follow-up industrial development in Pengzhou was put forward in order to consolidate the achievement of conversting cropland to forestry.
2014, 35(1): 105-106.
doi: 10.16779/j.cnki.1003-5508.2014.01.028
Abstract:
