2013 Vol. 34 Issue 5
2013 Vol. 34, No. 5
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2013, 34(5): 1-7.
doi: 10.16779/j.cnki.1003-5508.2013.05.001
Abstract:
Through the typical sample-plot survey of artificial Phyllostachys heterocycla var. pubescens stands in Jiangan County, the density distributions of their Age, DBH and HUC were simulated by using the Weibull distribution function. The results showed that (1) the bamboo number distribution of the stands was uniform, and the structure was quite reasonable. The number of bamboos at the first year was 598 individuals per hectare,which accounted for 16.5% of the total bamboos; (2) The age distribution of the stands complied with three-parameter Weibull distribution function,the fitting determination coefficient of all the plots was R2=0.99812, the error of each age group was within 3%; (3) The DBH and HUC distributions of the stands complied with two-parameter Weibull distribution function, the entire plot fitting determination coefficients were R2=0.99951 and 0.99819 respectively. Because of disturbances by artificially managed activities, the fitting errors found in the first four groups of the DBH distribution and the first three groups of the HUC distribution were larger,and the maximum values were 31.69% and-30.02% respectively, and the fitting errors in the rest groups were less than 3%; (4) The age-DBH and age-HUC distribution of the stands had similar structural characteristics, namely, DBH distribution of mature age groups was a normal distribution,and HUC distribution showed a non-complete normal distribution which was left-truncated, while the distribution of rest age groups didn't show obvious distribution characteristics, which was related to the artificial managed activities and their level.
Through the typical sample-plot survey of artificial Phyllostachys heterocycla var. pubescens stands in Jiangan County, the density distributions of their Age, DBH and HUC were simulated by using the Weibull distribution function. The results showed that (1) the bamboo number distribution of the stands was uniform, and the structure was quite reasonable. The number of bamboos at the first year was 598 individuals per hectare,which accounted for 16.5% of the total bamboos; (2) The age distribution of the stands complied with three-parameter Weibull distribution function,the fitting determination coefficient of all the plots was R2=0.99812, the error of each age group was within 3%; (3) The DBH and HUC distributions of the stands complied with two-parameter Weibull distribution function, the entire plot fitting determination coefficients were R2=0.99951 and 0.99819 respectively. Because of disturbances by artificially managed activities, the fitting errors found in the first four groups of the DBH distribution and the first three groups of the HUC distribution were larger,and the maximum values were 31.69% and-30.02% respectively, and the fitting errors in the rest groups were less than 3%; (4) The age-DBH and age-HUC distribution of the stands had similar structural characteristics, namely, DBH distribution of mature age groups was a normal distribution,and HUC distribution showed a non-complete normal distribution which was left-truncated, while the distribution of rest age groups didn't show obvious distribution characteristics, which was related to the artificial managed activities and their level.
2013, 34(5): 8-12.
doi: 10.16779/j.cnki.1003-5508.2013.05.002
Abstract:
2013, 34(5): 13-18.
doi: 10.16779/j.cnki.1003-5508.2013.05.004
Abstract:
The Camellia pollen (in the early opening and in full bloom) was used as test materials. The effects of flower opening degree and storage conditions on the pollen viability were studied by means of benzidine staining and inorganic acid. The results showed that the inorganic acid method was not suitable for the determination of the pollen viability of Camellia,but the benzidine staining method could determine quickly the pollen viability of Camellia. The viability of the two kinds of pollen was high on average,and yet gradually declined along with the prolonging of the preserving period. The degree of flower opening did not effect obviously on the pollen viability,but the effects of storage conditions were significant. The two kinds of pollen could be stored for 12 days at the room temperature(13℃~25℃) without loss of viability. Under 2℃ cold storage condition, the pollen in full bloom could be stored only for 26 days without loss of viability while the pollen in early opening only for 30 days.
The Camellia pollen (in the early opening and in full bloom) was used as test materials. The effects of flower opening degree and storage conditions on the pollen viability were studied by means of benzidine staining and inorganic acid. The results showed that the inorganic acid method was not suitable for the determination of the pollen viability of Camellia,but the benzidine staining method could determine quickly the pollen viability of Camellia. The viability of the two kinds of pollen was high on average,and yet gradually declined along with the prolonging of the preserving period. The degree of flower opening did not effect obviously on the pollen viability,but the effects of storage conditions were significant. The two kinds of pollen could be stored for 12 days at the room temperature(13℃~25℃) without loss of viability. Under 2℃ cold storage condition, the pollen in full bloom could be stored only for 26 days without loss of viability while the pollen in early opening only for 30 days.
2013, 34(5): 19-24.
doi: 10.16779/j.cnki.1003-5508.2013.05.005
Abstract:
The soil microbe is an important component of soil ecosystem,and also is an important component of the forest ecosystem,and an important participant of the forest ecological restoration and rehabilitation. In this paper,a description is given of advances in reasearches on effects of environmental factors on soil microbes,including effects and rules of vegetation, climate,soil organic matter and soil fertility. In addition,summary discussion is made on the current main methods in the study of soil microbial diversity and the developing direction of soil microbial research and use in the future.
The soil microbe is an important component of soil ecosystem,and also is an important component of the forest ecosystem,and an important participant of the forest ecological restoration and rehabilitation. In this paper,a description is given of advances in reasearches on effects of environmental factors on soil microbes,including effects and rules of vegetation, climate,soil organic matter and soil fertility. In addition,summary discussion is made on the current main methods in the study of soil microbial diversity and the developing direction of soil microbial research and use in the future.
2013, 34(5): 25-28.
doi: 10.16779/j.cnki.1003-5508.2013.05.006
Abstract:
The dendrochronology method was used to analyze the age structure of Davidia involucrate trees at different altitudinal gradients in Beichuan. According to the distribution characteristics of Davidia involucrate, three altitudinal gradients were set as the low limit section of altitude (1 400 m~1 500 m),the middle section (1 600 m~1 700 m) and the upper limit section (1 800 m~1 900 m). The result revealed that the age structure of the upper limit section was elder, lacking young seedlings and individuals of 30~40 years old; In the middle section, individuals between 30 and 40 years old had a higher rate, and had stronger ability to compete for more space and resource; In the low limit section, there were more seedlings. Most of the Davidia involucrate trees were distributed at the middle section, and their age was concentrated between 30 and 40 years old, the population characteristics at the low altitude displayed that seedlings was predominated, while at the upper altitude section,seedlings were sparse,which demonstrated that the altitude could significantly influence the age structure of Davidia involucrate.
The dendrochronology method was used to analyze the age structure of Davidia involucrate trees at different altitudinal gradients in Beichuan. According to the distribution characteristics of Davidia involucrate, three altitudinal gradients were set as the low limit section of altitude (1 400 m~1 500 m),the middle section (1 600 m~1 700 m) and the upper limit section (1 800 m~1 900 m). The result revealed that the age structure of the upper limit section was elder, lacking young seedlings and individuals of 30~40 years old; In the middle section, individuals between 30 and 40 years old had a higher rate, and had stronger ability to compete for more space and resource; In the low limit section, there were more seedlings. Most of the Davidia involucrate trees were distributed at the middle section, and their age was concentrated between 30 and 40 years old, the population characteristics at the low altitude displayed that seedlings was predominated, while at the upper altitude section,seedlings were sparse,which demonstrated that the altitude could significantly influence the age structure of Davidia involucrate.
2013, 34(5): 29-36.
doi: 10.16779/j.cnki.1003-5508.2013.05.007
Abstract:
Slash burning, a traditional land-clearing method, has been widely applied in planting in Rainy Area of Southwest China fir forest. Slash burning not only burns the harvesting residues and the ground vegetation, but also changes nutrients in soil. In this paper, the slash burning experiment was conducted on the deforested land of the 28-old-year Chinese fir forest,aiming to study its short-term effects on soil nutrients. The results showed that (1) Slash burning significantly increased pH value of soil. (2) After slash burning, total soil N, P and Ca concentrations in soil were significantly increased. After 9 months, total soil N, P and Ca concentrations in soil were slightly increased. After slash burning, K and Mg in soil increased at first and then decreased; after 9 months, total K concentration of 20 cm~40 cm layer increased than that of the control, and total K concentration in the other layers decreased than that in the control. Mg concentration of 0~20 cm layer significantly increased,and Mg concentration of the other layers decreased than that of the control. (3) At the beginning of slash burning, soil available N concentration slightly increased. After 7 months, it increased significantly, and soil available N concentration increased higher than the control after 9 months. After slash burning, available P concentration was significantly higher than that of control. Soil available K concentration in the soil of 20 cm~40 cm, 40 cm~60 cm in early slash burning decreased, and then increased. After 9 months, available K in 20 cm~40 cm soil was less than that in control, but that in the other two layers was higher than that in control.
Slash burning, a traditional land-clearing method, has been widely applied in planting in Rainy Area of Southwest China fir forest. Slash burning not only burns the harvesting residues and the ground vegetation, but also changes nutrients in soil. In this paper, the slash burning experiment was conducted on the deforested land of the 28-old-year Chinese fir forest,aiming to study its short-term effects on soil nutrients. The results showed that (1) Slash burning significantly increased pH value of soil. (2) After slash burning, total soil N, P and Ca concentrations in soil were significantly increased. After 9 months, total soil N, P and Ca concentrations in soil were slightly increased. After slash burning, K and Mg in soil increased at first and then decreased; after 9 months, total K concentration of 20 cm~40 cm layer increased than that of the control, and total K concentration in the other layers decreased than that in the control. Mg concentration of 0~20 cm layer significantly increased,and Mg concentration of the other layers decreased than that of the control. (3) At the beginning of slash burning, soil available N concentration slightly increased. After 7 months, it increased significantly, and soil available N concentration increased higher than the control after 9 months. After slash burning, available P concentration was significantly higher than that of control. Soil available K concentration in the soil of 20 cm~40 cm, 40 cm~60 cm in early slash burning decreased, and then increased. After 9 months, available K in 20 cm~40 cm soil was less than that in control, but that in the other two layers was higher than that in control.
2013, 34(5): 37-41.
doi: 10.16779/j.cnki.1003-5508.2013.05.008
Abstract:
Qingyijiang Gully, loeated in Pingwu county of Sichuan Province, is one of the tributaries of the Pingtong River of the Fujiang River system. Debris flow disasters happened many times in the past. The rainfall reached 112 mm in Qingyijiang Gully on August 12th, 2008,therefore causing torrential flood and debris flows. The amounts of catchments, erosion gully and collapse body were measured on both sides of the 19.73 km long river between Kuanba forestry farm and Suojiang town after 16 days of the debris flows. The results showed that in the forestry lands and cultivated lands there were 54 catchments found in the surveyed area, whose density was 2.7 strips·km-1, and 65 erosions, whose density was 3.3 strips·km-1. And there were 1 264 m3 of quantities of triggering earth in the outlet, whose volume's density was 64 m3·km-1. 394 collapse bodies broke out in the surveyed section, their collapse volume was 7 324 m3. However, significant differences between collapse points and standing collapse volume were found between southern slope and northern slope of the river, collapse points and standing collapse volume in the southern slope were all superior to northern slope. On the collapse points, 286 points were found in the southern slope (which occupied 72.6% of all collapse points), whose point density was 14.5 points· km-1, but 108 points in the northern slope (which occupied 27.4% of all collapse points), whose point density was 6.5 points·km-1. And on the standing collapse volume, there were 5 486 m3 in the southern slope, which occupied 74.9% of all collapse earth, whose density was 278.1 m 3 ·km-1, while 1 838 m3 in the northern slope, which occupied only 25.1% of all collapse earth, whose density was only to 93.2 m3·km-1. The analysis also showed that human activities were the main cause of debris flow source, especially arable land. So, in the debris flow hazard treatment, attention should be paid to guiding the rural industrial structure adjustment,and trying the improvement of ecological environment, and enhancing the comprehensive management ability of disaster prevention and mitigation.
Qingyijiang Gully, loeated in Pingwu county of Sichuan Province, is one of the tributaries of the Pingtong River of the Fujiang River system. Debris flow disasters happened many times in the past. The rainfall reached 112 mm in Qingyijiang Gully on August 12th, 2008,therefore causing torrential flood and debris flows. The amounts of catchments, erosion gully and collapse body were measured on both sides of the 19.73 km long river between Kuanba forestry farm and Suojiang town after 16 days of the debris flows. The results showed that in the forestry lands and cultivated lands there were 54 catchments found in the surveyed area, whose density was 2.7 strips·km-1, and 65 erosions, whose density was 3.3 strips·km-1. And there were 1 264 m3 of quantities of triggering earth in the outlet, whose volume's density was 64 m3·km-1. 394 collapse bodies broke out in the surveyed section, their collapse volume was 7 324 m3. However, significant differences between collapse points and standing collapse volume were found between southern slope and northern slope of the river, collapse points and standing collapse volume in the southern slope were all superior to northern slope. On the collapse points, 286 points were found in the southern slope (which occupied 72.6% of all collapse points), whose point density was 14.5 points· km-1, but 108 points in the northern slope (which occupied 27.4% of all collapse points), whose point density was 6.5 points·km-1. And on the standing collapse volume, there were 5 486 m3 in the southern slope, which occupied 74.9% of all collapse earth, whose density was 278.1 m 3 ·km-1, while 1 838 m3 in the northern slope, which occupied only 25.1% of all collapse earth, whose density was only to 93.2 m3·km-1. The analysis also showed that human activities were the main cause of debris flow source, especially arable land. So, in the debris flow hazard treatment, attention should be paid to guiding the rural industrial structure adjustment,and trying the improvement of ecological environment, and enhancing the comprehensive management ability of disaster prevention and mitigation.
2013, 34(5): 42-46.
doi: 10.16779/j.cnki.1003-5508.2013.05.009
Abstract:
The general idea of Beautiful Jinchuan,100-mile Galley, also an afforestation design,is drawn up for the Qingning-Hexi section along No. 211 provincial highway. This design idea can be mainly represented by five subsections,and each subsection has one theme and one mood. It is also interpreted from such a poem as "elliptical leaves are in deep green and in sunny spring,half spreading,freely branched, mid blossoming; red peach blossoms and green willows are similar to the scene of Southern Yangtze; 100-mile gallery. of meaningful section and landscape comes into my dream at night". With the target of drawing a charming landscape painting of both lush southern-type town in the west and plateau pear township, this section will be constructed in order to enrich the landscape effect and raise the afforestation level. In summary, this landscape design for highway afforestation provides a new concept for green design and construction of provincial highway.
The general idea of Beautiful Jinchuan,100-mile Galley, also an afforestation design,is drawn up for the Qingning-Hexi section along No. 211 provincial highway. This design idea can be mainly represented by five subsections,and each subsection has one theme and one mood. It is also interpreted from such a poem as "elliptical leaves are in deep green and in sunny spring,half spreading,freely branched, mid blossoming; red peach blossoms and green willows are similar to the scene of Southern Yangtze; 100-mile gallery. of meaningful section and landscape comes into my dream at night". With the target of drawing a charming landscape painting of both lush southern-type town in the west and plateau pear township, this section will be constructed in order to enrich the landscape effect and raise the afforestation level. In summary, this landscape design for highway afforestation provides a new concept for green design and construction of provincial highway.
2013, 34(5): 47-50.
doi: 10.16779/j.cnki.1003-5508.2013.05.010
Abstract:
Through 5 years of observation and investigation,according to the causes of desertification,and in combination with the local reality,researches were conducted on different methods of controlling the shifting, semi fixed sand dune, fixed sand dune and sandy land. In addition, the different comprehensive management modes of sandy desertification types were summarized. These models have been applied in production, initially showing huge economic, ecological and social benifts.
Through 5 years of observation and investigation,according to the causes of desertification,and in combination with the local reality,researches were conducted on different methods of controlling the shifting, semi fixed sand dune, fixed sand dune and sandy land. In addition, the different comprehensive management modes of sandy desertification types were summarized. These models have been applied in production, initially showing huge economic, ecological and social benifts.
2013, 34(5): 51-55.
doi: 10.16779/j.cnki.1003-5508.2013.05.011
Abstract:
The environmental conditions of Xiaozhaizigou Nature Reseve and Piankou Nature Reserve were investigated in order to assess the site conditions and damage of pandas' habitats after "5·12" Wenchuan earthquake. Combined with the existing vegetation recovery techniques,18 plant species had been chosen as the key tree or grass species for the restoration of pandas' habitat in Beichuan Nature Reserve, and other 20 models were designed for the earthquake rehabilitation project. In this study,the ways were put forward for pandas' habitat restoration,namely adopting multi-sectoral process collaboration, project integration and key corridor construction,strengthening management and conducting research on bamboos of pandas' main food.
The environmental conditions of Xiaozhaizigou Nature Reseve and Piankou Nature Reserve were investigated in order to assess the site conditions and damage of pandas' habitats after "5·12" Wenchuan earthquake. Combined with the existing vegetation recovery techniques,18 plant species had been chosen as the key tree or grass species for the restoration of pandas' habitat in Beichuan Nature Reserve, and other 20 models were designed for the earthquake rehabilitation project. In this study,the ways were put forward for pandas' habitat restoration,namely adopting multi-sectoral process collaboration, project integration and key corridor construction,strengthening management and conducting research on bamboos of pandas' main food.
2013, 34(5): 56-60.
doi: 10.16779/j.cnki.1003-5508.2013.05.012
Abstract:
In order to develop and use Pinus massoniana better and provide reference basis for its operation and management,the multi-model selection were used to analyze and discuss the individual tree diameter growth progress of Pinus massoniana Lamb in Shibao town,Chongqing City. Results showed that whether it was a dominant tree or oppressed tree,Richards function was the best to fit the diameter of the growth process of P. massoniana,better than Schumacher function,while Gauss function was the worst. However,the parameters of the Richards function were too much,and the amount of diameter growth of P. massoniana estimated by Richards function did not meet the actual growth conditions,therefore,Schumacher function was the best model which could be used to describe the diameter growth process of Pinus massoniana Lamb in Shibao town,Chongqing Province.
In order to develop and use Pinus massoniana better and provide reference basis for its operation and management,the multi-model selection were used to analyze and discuss the individual tree diameter growth progress of Pinus massoniana Lamb in Shibao town,Chongqing City. Results showed that whether it was a dominant tree or oppressed tree,Richards function was the best to fit the diameter of the growth process of P. massoniana,better than Schumacher function,while Gauss function was the worst. However,the parameters of the Richards function were too much,and the amount of diameter growth of P. massoniana estimated by Richards function did not meet the actual growth conditions,therefore,Schumacher function was the best model which could be used to describe the diameter growth process of Pinus massoniana Lamb in Shibao town,Chongqing Province.
2013, 34(5): 61-64.
doi: 10.16779/j.cnki.1003-5508.2013.05.013
Abstract:
Hailuogou is the key area of Gongga Mountain Nature Reserve, and the area of virgin forest is more than 70 km2. Plant diversity of Hailuogou was investigated from May to September, 1999 and in July of 2006. Based on the statistics of transects and plots in the vertical sequence of the vegetation, and combined with the related literatures, the higher plants were composed of 78 families,352 genus and 1 432 species (including lower units) in Hailuogou. The vertical differentiation of vegetation type showed the belt-type of different space,and the vegetation types were comparatively abundant.
Hailuogou is the key area of Gongga Mountain Nature Reserve, and the area of virgin forest is more than 70 km2. Plant diversity of Hailuogou was investigated from May to September, 1999 and in July of 2006. Based on the statistics of transects and plots in the vertical sequence of the vegetation, and combined with the related literatures, the higher plants were composed of 78 families,352 genus and 1 432 species (including lower units) in Hailuogou. The vertical differentiation of vegetation type showed the belt-type of different space,and the vegetation types were comparatively abundant.
2013, 34(5): 65-68.
doi: 10.16779/j.cnki.1003-5508.2013.05.014
Abstract:
Investigations and analysis were made of the reserves of litter and its water retention characteristics in natural forest and artificial forest in Muchuan county, Sichuan. The results showed that litter reserves were natural forest > artificial forest(25.7 t·hm-2 > 18.1 t·hm-2); Maximum water retention capacity was natural forest > artificial forest(75.0 t·hm-2 > 47.0 t·hm-2); Maximum water retention ratio,water absorption and water absorption speed were natural forest > artificial forest; Effective retaining content was natural forest > artificial forest(28.6 t·hm-2 > 17.0 t·hm-2). In general, water conserving function of natural forest was better than that of artificial pinust abulaeformis forest.
Investigations and analysis were made of the reserves of litter and its water retention characteristics in natural forest and artificial forest in Muchuan county, Sichuan. The results showed that litter reserves were natural forest > artificial forest(25.7 t·hm-2 > 18.1 t·hm-2); Maximum water retention capacity was natural forest > artificial forest(75.0 t·hm-2 > 47.0 t·hm-2); Maximum water retention ratio,water absorption and water absorption speed were natural forest > artificial forest; Effective retaining content was natural forest > artificial forest(28.6 t·hm-2 > 17.0 t·hm-2). In general, water conserving function of natural forest was better than that of artificial pinust abulaeformis forest.
2013, 34(5): 69-71.
doi: 10.16779/j.cnki.1003-5508.2013.05.015
Abstract:
In order to screen the optimal transplanting substratum, 8 kinds of substrata or mixed substrata were used for transplanting test-tube plantlets of Cymbidium hybridium,and sphagna were used as a control. Results indicated that rape straw (20 mm~30 mm particle size) would be the optimum substratum for transplanting the test-tube plantlets of Cymbidium hybridium in Chengdu Plain, because it would bring a higher survival rate and growth index of plantlets, and had an abundant supply and lower costs.
In order to screen the optimal transplanting substratum, 8 kinds of substrata or mixed substrata were used for transplanting test-tube plantlets of Cymbidium hybridium,and sphagna were used as a control. Results indicated that rape straw (20 mm~30 mm particle size) would be the optimum substratum for transplanting the test-tube plantlets of Cymbidium hybridium in Chengdu Plain, because it would bring a higher survival rate and growth index of plantlets, and had an abundant supply and lower costs.
2013, 34(5): 72-73,7.
doi: 10.16779/j.cnki.1003-5508.2013.05.016
Abstract:
In different matrix of Alnus nepalensis cutting test,use was made of a completely randomized block design. For cutting Alnus nepalensis in three matrix (forest soil, river sand and perlite) in Research Institute of Tropical Forestry of Yunnan Academy of Forestry(Puwen), the most suitable was forest soil. The average rooting rate was 43.57%, the average number of roots was 6.06, the average branching length was 4.26 cm,and the average root length was 9.39 cm.
In different matrix of Alnus nepalensis cutting test,use was made of a completely randomized block design. For cutting Alnus nepalensis in three matrix (forest soil, river sand and perlite) in Research Institute of Tropical Forestry of Yunnan Academy of Forestry(Puwen), the most suitable was forest soil. The average rooting rate was 43.57%, the average number of roots was 6.06, the average branching length was 4.26 cm,and the average root length was 9.39 cm.
2013, 34(5): 74-76.
doi: 10.16779/j.cnki.1003-5508.2013.05.017
Abstract:
2013, 34(5): 77-78,46.
doi: 10.16779/j.cnki.1003-5508.2013.05.018
Abstract:
Discussion on the Application Mode of Ornamental Grasses in Landscaping and Garden-design in Chengdu
2013, 34(5): 79-81,50.
doi: 10.16779/j.cnki.1003-5508.2013.05.019
Abstract:
In this paper,an elaboration is made of the definition and characteristics of ornamental grasses, and a description is given of the origin and the present situation of their application. Suggestions are offered on how to arrange ornamental grasses in landscape and garden-design application,and a few important research directions of ornamental grasses are also mentioned.
In this paper,an elaboration is made of the definition and characteristics of ornamental grasses, and a description is given of the origin and the present situation of their application. Suggestions are offered on how to arrange ornamental grasses in landscape and garden-design application,and a few important research directions of ornamental grasses are also mentioned.
2013, 34(5): 82-83,60.
doi: 10.16779/j.cnki.1003-5508.2013.05.020
Abstract:
2013, 34(5): 84-86.
doi: 10.16779/j.cnki.1003-5508.2013.05.021
Abstract:
2013, 34(5): 87-89.
doi: 10.16779/j.cnki.1003-5508.2013.05.022
Abstract:
The Present Status of Forestry Industry in Chengdu City and Strategy for its Sustainable Development
2013, 34(5): 90-91,41.
doi: 10.16779/j.cnki.1003-5508.2013.05.023
Abstract:
By researching into the status of forestry industry development in Chengdu City,some strategies are put forward in terms of improving security measures,strengthening science and technology support,arranging the scientific species structure,using the modern philosophy to develop the mode of forestry industry,strengthening the forestry industry brand establishment and improving the quality of forestry industry participants for the sustainable development of forestry industry in Chengdu City.
By researching into the status of forestry industry development in Chengdu City,some strategies are put forward in terms of improving security measures,strengthening science and technology support,arranging the scientific species structure,using the modern philosophy to develop the mode of forestry industry,strengthening the forestry industry brand establishment and improving the quality of forestry industry participants for the sustainable development of forestry industry in Chengdu City.
2013, 34(5): 92-94.
doi: 10.16779/j.cnki.1003-5508.2013.05.024
Abstract:
Under-forest economy, a new ecological protective path derived from the reformation of collective rights forest, has become one of the mainstreams of modern forest industry development. It is also recognized as the efficient and organic combination of ecological forest and farming forest. In this article, studies are made of the current situation of under-forest economy and analysis is made of the difficulties and problems,and then some recommendations are put forward about the promotion of under-forest economy development in Qiannan Prefecture.
Under-forest economy, a new ecological protective path derived from the reformation of collective rights forest, has become one of the mainstreams of modern forest industry development. It is also recognized as the efficient and organic combination of ecological forest and farming forest. In this article, studies are made of the current situation of under-forest economy and analysis is made of the difficulties and problems,and then some recommendations are put forward about the promotion of under-forest economy development in Qiannan Prefecture.
2013, 34(5): 95-96,18.
doi: 10.16779/j.cnki.1003-5508.2013.05.025
Abstract:
In this article,investigations were made on ecological characteristics,the value and the resource condition of Chimonobambusa neopurpurea in Ebian County,and a description was given of technical main points of planting Chimonobambusa neopurpurea.
In this article,investigations were made on ecological characteristics,the value and the resource condition of Chimonobambusa neopurpurea in Ebian County,and a description was given of technical main points of planting Chimonobambusa neopurpurea.
