Table of Content

28 October 2018, Issue 5

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Integrated Management and Administration

Study on Sustainable Development Strategies of the Giant Panda Nature Reserve in New Period

ZHANG Zhizhong, LI Wei, ZHANG Mingchun, LIU Dingzhen

2018,(5):  1-7.  doi:10.13466/j.cnki.lyzygl.2018.05.001

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According to the situation of the protection area and surrounding community for the giant panda (Ailuropoda melanoleuca), we analyzed the main problems of protection and sustainable development. Aiming to get rid of poverty and seize the historic opportunity of building the Giant Panda National Park, we should take full advantage of the flag-ship species and promote sustainable development of the community surrounding the protection area,use the superiority of resources in giant pandas’ protection area to develop industries harmless to the environment.Combining policies such as poverty relief and development with ecological construction and environmental conservation,combining ecological protection with sustainable development are proposed aiming to win-win cooperation of conservation and development in giant pandas’ protection area and promoting all aspects of ecology, economics and society.

Analysis and Optimizing Suggestions on Operation and Management Mechanism of National Reserve Forest

JIANG Xilin, QIN Tao

2018,(5):  8-13.  doi:10.13466/j.cnki.lyzygl.2018.05.002

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China began to implement National Reserve Forest(NRF) in 2012,and the clear-duty management mechanism and procedure-based operation mechanism had been initially established after several years development.Great achievements had been made in the NRF project in terms of bases construction and institution improvement by exploration and innovation in financing model,project management and policy integration.Yet problems exist due to constraining factors in institution,management system,financing regime and finance policy etc.in NRF primary stage.By analyzing the implementation situation and problems of NRF project,suggestions of integrating management institution,optimizing operation system,improving management rules,broadening financing channels,improving returning institution and developing policy portfolio are proposed.

Modernization of Social Forestry Construction in Oasis City:Government,Market and Social Collaboration

WANG Jingjing, LI Hong, CHENG Ping, YANG Wenguang, DONG Bangbang

2018,(5):  14-19.  doi:10.13466/j.cnki.lyzygl.2018.05.003

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Urban social forestry construction is an important ecological civilization construction project to enhance regional ecological carrying capacity,expand urban residents’ living space and improve living environment.The oasis city’s ecological environment is fragile and the production activity space is limited.The construction of social forestry will build a solid ecological shelter for the economic development of the oasis city,which is of great significance for enhancing the sustainable development capacity of the oasis city.The government is the traditional leading factor of social forestry construction in Oasis City.However,in the new era of deepening reform of forestry management system,the main body of urban social forestry construction is gradually diversified,the role of social capital is prominent,the participation of society is strengthened and the way of forestry construction is fundamentally changed.In the new era of forestry modernization development,the research on the status,relationship and the role boundary of the government,market and society in forestry construction have been concerned.Based on the theory of public goods and the practice of the Yamarik Mountain Forest Park in Urumqi,Xinjiang,this paper studies the role and interaction of government,market and society in forestry construction and we hope to provide references for forestry modernization.

Development History and Prospect of Aerial Forest Protection in Northwest Yunnan

BU Xiaolong

2018,(5):  20-24.  doi:10.13466/j.cnki.lyzygl.2018.05.004

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Aerial forest protection is the most advanced method to forest fire,and the agency takes the functions of forest fire prevention,fire fighting,firefighting material transportation and fire emergency rescue.The method has the advantages of early detection,fast action and small-fire elimination.The basic situation and development history of the Lijiang Station of the Southern China Aerial Forest Protection Terminus of State Forestry Administration were introduced.Lijiang station's breakthroughs and innovations in forest aviation firefighting works for many years were summarized. We previewed the development trend of aviation forest protection work in Northwest Yunnan.

Evaluation and Analysis of Present Situation of Forest Resources in Hebei Province—Based on the Results of Ninth Continuous National Forest Inventory in Hebei Province

ZHANG Lu, PU Ying, CHEN Xinyun, HUANG Guosheng, DANG Yongfeng

2018,(5):  25-28.  doi:10.13466/j.cnki.lyzygl.2018.05.005

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As an important part of the coordinated development area of Beijing,Tianjin and Hebei Province,Hebei’s achievements in forestry construction play an important role in the development of the whole region.The system of Continuous National Forest Inventory in Hebei was founded in 1978.Seven review investingations were carried out successively.The eighth was carried out in 2016 and produced the results of forest area,volume and forest coverage.Based on the results of Ninth Continuous National Forest Inventory in Hebei Province,this paper analyzed the forest area,volume,quality,structure and provided comprehensive evaluation of forest resources,as well as the proposals for the protection and development of forest resources in Hebei Province.The paper can provide references for forestry ecological construction in the whole province in the new period.

Analysis of Standard for Classification of Urban Green Space (CJJ/T 85-2017) in the Perspective of Multiple Attributes

HE Rongxiao, ZHANG Hongwei, YAN Pengbo, CUI Xueqing, ZHANG Bolin

2018,(5):  29-34.  doi:10.13466/j.cnki.lyzygl.2018.05.006

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For better urban planning,the latest version of Standard for Classification of Urban Green Space (CJJ/T 85-2017) was published and implemented officially on June 1st in 2018 by the conception of urban and rural entire development.The current urban green space system planning faces many challenges such as complicated spatial structure,intensification of land utilization and diversification of green land functions.This paper tries to analyze the green space classification method of the latest edition of Urban Green Space Classification Standard,and explores the practical advantages and new challenges brought by urban green space system planning after the adjustment of classification.And we sorts out the attributions of urban green space types from three aspects:attribution of product,characteristics of usages and service functions. Then a multi-attribute consideration of green space system planning strategy is proposed to provide references for future urban green space system planning and research.

Scientific Research

Validation of Two-Variable Tree Volume Tables for Main Tree Species in China

ZENG Weisheng

2018,(5):  35-41.  doi:10.13466/j.cnki.lyzygl.2018.05.007

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The ministerial standard of two-variable tree volume tables has been applied for a total of 40 years.Whether or not the volume tables are still suitable for current status of forest resources has become a growing concern.Based on the recently collected individual tree volume data of 5 055 sample trees for 16 tree species or groups involving 41 modeling populations,the corresponding 43 two-variable tree volume tables in the ministerial standard were validated using statistical test and error test methods.The results showed that only less than 10 of 43 volume tables were still suitable or almost suitable for volume estimation nowadays,the other volume tables had prediction errors exceeding the allowance of ±3%,and about half of all volume tables had prediction errors exceeding ±5%,and a few of them even more than 10%.Based on the data of validation sample trees,41 compatible two-variable tree volume models were developed,of which 23 models have achieved the required precision,and only 5 models had prediction errors more than 5%,indicating that the developed volume models might be used in practice.It is suggested to update,revise and supplement the current two-variable tree volume tables,and gradually improve the tree volume accounting system of China.

Optimization and Improvement on Sampling Design of Continuous Forest Inventory in Tianjin

CHEN Xinyun, ZENG Weisheng, WANG Wei, ZHANG Lu, SUN Xiangnan, HUANG Guosheng, DANG Yongfeng, QIN Zhongtao

2018,(5):  42-46.  doi:10.13466/j.cnki.lyzygl.2018.05.008

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Optimizing and improving National Continuous Forest Inventory System is an important concern in recent years.According to the distribution characteristics of forest resources in Tianjin and previous Continuous Forest Inventories (CFI) results,the sampling design of CFI in Tianjin was optimized and improved,and the optimal sampling design was verified and analyzed using the implementation results in 2017.The results showed that one 500m sample line was similar to three 0.066 7 hm² (1 Chinese mu) sample plots on sampling efficiency for estimation of forest area,the sampling precisions of forest area and growing stock volume were more than 90% as specified in national technical regulation,and those of forest area and forest volume in two sub-populations,i.e.,mountainous and plain areas,were more than 85% and 80% respectively.Finally,it is concluded that sample line based survey is an effective way to conduct CFI in plain area,stratified sampling is a highly effective method to improve the efficiency of CFI,and the optimization and improvement on sampling design of CFI in Tianjin have met the precision demands and achieved the expected results.

Height-Age Growth Model for Liquidambar formosana in Guangdong Using the Classified Height Method

XU Qihu, LIN Liping, XUE Chunquan, LUO Yong, YANG Jiazhi, LEI Yuancai

2018,(5):  47-53.  doi:10.13466/j.cnki.lyzygl.2018.05.009

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All 90 sample trees of Liquidambar formosana were obtained in 10 diameter classes including 40 stem analysis,based on the 8th Consecutive Forest Inventory data of the distribution of camphor in Guangdong Province in 2012,the growth models of different site grades of Liquidambar formosana were studied.The results showed that:(1) optimal equations to simulate the growth process of DBH,tree height and volume were of Gompertz,which were as follows:$D=43.100e^{(-3.277e^{-0.067T})},H=19.404e^{(-2.336e^{-0.111T})},V=1.244e^{(-6.992e^{-0.069T})}$.Using Gompertz equations to establish the tree height-age classified model and determine the site classification of each tree.The optimal models of DBH were as follows:$D_1=61.724(1-e^{-0.049T} )^{1.915},D_2=51.992/(1+12.946e^{-0.088T}),D_3=36.135e^{(-3.090e^{-0.060T})}$.The optimal models of tree height were as follows:$H_1=26.704e^{(-1.997e^{-0.099T})},H_2=20.035e^{(-2.234e^{-0.099T})},H_3=15.031e^{(-2.471e{-0.099T})}$.The optimal models of volume were as follows:$V_1=3.335(1-e^{-0.044T} )^{3.798},V_2=1.629e^{(-7.434e^{-0.060T})},V_3=1.087/(1+163.827e^{-0.127T})$.(3) The optimal model of classified and unclassified method is different,the fitting models of using classified method in DBH,tree height,volume were better than unclassified model.

An Improved Hight Prediction Mixed Effect Model for Quercus variabilis

HUANG Feng, XU Aijun, TANG Lihua

2018,(5):  54-62.  doi:10.13466/j.cnki.lyzygl.2018.05.010

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Tree height and DBH are two important tree-building factors in the survey of forest resources.In view of the relatively difficulty for height measurement,in this article we took 94 cork oaks from Xixi Town,Jinhua City as the research object and compared the fitting effects of 10 tree height curve models commonly used in forestry,improved the traditional Gompertz tree height curve model,proposed and constructed a Gompertz mixed effect tree high prediction model with site factors.The results show that:(1) The model fits best when the random parameters b₁ and b₃ are introduced for Gompertz mixed effect model.The model fits best when the random parameters b1 and b4 are introduced for Gompertz mixed effect improvement model.(2) The Gompertz mixed effect improvement model constructed in this paper has a coefficient of determination of 0.779 with 0.553 Gompertz mixed effect model,and with 0.542 for Gompertz model.That is building the model only by the mixed effect method is not obvious for improving the accuracy of the prediction model.(3) Experiments show that the Gompertz mixed effect improvement model constructed in this paper greatly improves the prediction accuracy of the height of Quercus variabilis,and provides a new method for studying the relationship between tree height and diameter at breast height.

Relationship between Dust Retention and Heavy Metal Content in 8 Tree Species

LIN Xingyu, LI Haimei, LI Yanhua, LIU Zhike

2018,(5):  63-69.  doi:10.13466/j.cnki.lyzygl.2018.05.011

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Garden plants have the function of entrainment of atmospheric particulates and heavy metals,which can significantly improve the urban environment.The dust retentions on the leaf surfaces of Ligustrum lucidum,Platanus orientalis and Populus tomentosa were larger than that of Salix matsudana and Koelreuteria paniculata,and the dust retention amount per leaf surface of Ligustrum lucidum was the largest at an average level of 4.494 9±0.727 4g/m²,which was about 2.8 times as that of the smallest Salix matsudana .The dust retention of the 8 studied tree species reached the maximum during day 21 to day 27.The highest saturated dust retention was Ligustrum lucidum on the 24th day after raining with an amount of 7.201 8±0.026 4g/m² while the lowest,Salix matsudana,of 2.805 3±0.049 3g/m ² on day 21.The former was about 2.5 times as much as that of the latter.There was a positive correlation between the heavy metal content in leaves and the leaf dust retention,as well as between the heavy metal content in leaves and in the retentive dust,heavy metal content in the retention dust and the retention dust amount.The correlation of Cd,Pb content in leaves and dust retention reached a very significant level.The correlation coefficient between Cu,Ni,Pb and Zn content in leaves and in the retention dust reached more than 0.8,reaching a very significant level.The correlation coefficient between heavy metal content in the retentive dust and leaf dust retention is above 0.4,especially the highest correlation between Pb and dust retention with a coefficient 0.880.

Key Technology Research of Forest Land Annual Change Management Platform Construction Based on “Internet +”

LIU Yongjie, WANG Xuejun

2018,(5):  70-75.  doi:10.13466/j.cnki.lyzygl.2018.05.012

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Based on the analysis of annual forest land change condition,this paper proposes the composition of annual forest land change management platform including cloud service platform and application platform,the application platform includes mobile application,desktop application and web application according to different modes.The three application modes are equal,independent,cooperative and multi-terminal integration,which fully meet the needs of forest land renewal.This paper introduces the key technologies of online editing,data caching and data synchronization respectively from the aspects of application side,service side interaction.Finally,the paper summarizes the characteristics of forest land annual change platform based on “Internet +”.

Data Services System for Synergizing and Sharing Forestry Big-data Platform of the Yangtze River Economic Zone

CHEN Xiaozhong, ZHANG Ting, ZHANG Huihua, ZHONG Xiangqing, ZHANG Heng

2018,(5):  76-81.  doi:10.13466/j.cnki.lyzygl.2018.05.013

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For the aim of the data service system platform construction for synergizing and sharing forestry big-data of the Yangtze river economic zone,and in view of the forestry resources data with the traits as large quantity,diversification and different space-time scales,the forestry resources datasets integration and the data services system construction have been introduced respectively.Based on the modern information techniques and theory,such as the cloud computation,the Internet of Things and the big data,the forestry resources datasets of the Yangtze river economic Zone have been integrated by the same standard.The data service system has been constructed and the typical forestry thematic application has also been done.The platform has supported the datasets sharing and decision services for the forestry ecological civilization development for the related provinces and cities of the Yangtze river economic Zone.

Evaluaton of the Quality of Timber Forest in Jiangle State-owned Forest Farm Based on Matter-element Analysis

CHEN Hua, LIN Huazhong, JIN Aixian, SUN Yujun

2018,(5):  82-89.  doi:10.13466/j.cnki.lyzygl.2018.05.014

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Timber forest is not only an important source of timber supply in China,but also provide multi-functional benefits.Research on quality evaluation is important for forest management.In order to evaluate the quality of timber forest in Jiangle state-owned forest farm,a comprehensive evaluation index system including forest productivity,forest structure and site conditions was established based on the survey data of forest resources in 2012.The weight of each index was determined by combining Analytic Hierarchy Process and entropy weight method.The matter-element analysis for incompatibility problem was used for comprehensive evaluation.The results showed that:(1) The matter-element analysis method could accurately evaluate the quality of forest resources,and the quality of timber forests in Jiangle state-owned forest farm was “II” and there was a trend of transition to “III”,which is basically consistent with the results of previous studies;(2) The forests with canopy density in 0.40~0.69(C5),average tree height(C2) and mixed forest area ratio(C6) are of general quality and require special attention.

Monitoring Efficiency and Suppression Accessibility of Forest Fire in Daxing'an Mountains Based on Fire Risk Division

YAN Ping, ZOU Quancheng

2018,(5):  90-98.  doi:10.13466/j.cnki.lyzygl.2018.05.015

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A logistic regression model was used to predicte Daxing'an Mountain's forest fire based on the climate,vegetation,terrain,socio-economic and infrastructure factors combing satellite fire point dataset from 2000 to 2010,the fire risk division was generated accordingly.In addition,an analysis of efficiency of fire ignition monitoring and suppression was also conducted based on fire risk division.The results showed that thirteen factors including slope,monthly average precipitation,monthly average temperature etc.,are significantly correlated with forest fires.High fire risk zone accounts for 24.47% of Daxing'an Mountains.Compared to current allocation of fire monitoring,the gridding methods on location selection of fire tower (20 km×20 km grid and 10 km×10 km grid) can significantly improve the efficiency of fire monitoring.The visible rates on the high fire risk zone improved 36.97% and 60.52% respectively and the required number of fire towers reduced meanwhile.On the other hand,the accessibilities of fire suppression to high fire risk zone are higher in East,South and West of Daxing'an Mountains than the central and Northern areas, however,only one third forest fire station in the region can send fire fighters to high fire risk areas in a short time.We therefore suggest that more fire stations need to be added in the poor accessibility area in order to improve the efficiency of forest fire suppression of Daxing'an Mountains.

Potential Distribution Prediction of Cold—temperate Mountainous Sclerophyllous Evergreen Broad—leaved Forests in Northwest Yunnan

LI Wangjun, ZHOU Ruiwu, FENG Tu, LUO Qiang, HE Bin, XIAO Qunying, PENG Mingchun

2018,(5):  99-104.  doi:10.13466/j.cnki.lyzygl.2018.05.016

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Prediction of potential vegetation distribution has great significance on protection and restoration of vegetation as a starting point of studies refering to vegetation-climate relationship.On the basis of climate data and current distribution data in Northwest Yunnan,the study predict potential distribution areas of cold-temperate mountainous sclerophyllous evergreen broad-leaved forests by means of Maxent model.Results are as follows:(1) AUC value of training data and texting data are 0.976 and 0.973 respectively,demonstrating that accuracy of the maxent model is excellent.(2) Four climatic factors including Bio6,Bio11,Bio14 and Bio8 become the leading factors affecting the potential distribution of cold-temperate mountainous sclerophyllous evergreen broad-leaved forests in Northwest Yunnan,in which bio6 is the most critical.(3) With a total area of 9 233.92 km²,potential distribution of cold-temperate mountainous sclerophyllous evergreen broad-leaved forests occupy 13.40 percent of Northwest Yunnan.(4)Elevation range of potential distribution areas of cold-temperate mountainous sclerophyllous evergreen broad-leaved forests in Northwest Yunnan is 2 452~4 127m,with an average of 3 034m.

Remote Sensing Detection and Analysis of the Human Disturbance Effects on the Surrounding of Nature Reserve—a Case Study of Yongde Snow Mountain National Nature Reserve

ZHOU Xinrui, GAN Shu, YUAN Xiping, YU Hui

2018,(5):  105-112.  doi:10.13466/j.cnki.lyzygl.2018.05.017

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Taking Yongde Snow Mountain National Nature Reserve and surrounding areas in Lincang City of Yunnan Province as the experimental area,the characteristics of burned area that have the most instructive influence of human disturbances at the surrounding of nature reserve as the research objects,Normalized Difference Vegetation Index (NDVI) and Normalized Burn Ratio (NBR) as well as correlation algorithms,the rapid identification,quantification and location analysis about the burned area affected by human disturbance were obtained.The results showed that:1) In different remote sensing periods,the spatial distribution of vegetation coverage within the boundary of the nature reserve was relatively stable. While outside the boundary,the vegetation coverage decreased with the increasing of the buffer distance.2) Within the boundary of the nature reserve,the presence of a small number of burned areas could be monitored. However,outside the nature reserve,the burned area showed increasing with the rise of buffer distance.3)Investigating and analyzing of the causes which led to the burned areas spatial changes in the study area were couducted.The objective distribution of rural residential around the nature reserve was an important driving factor affecting the vegetation coverage and burned area.There was a close spatial correlation between the distribution of rural residential and the vegetation coverage as well as distribution of burned area in nature reserve.It is necessary to seek the mitigation measures in order to study the impact of rural settlements at the surrounding of nature reserve on human disturbances in nature reserve.

Edge Detection and Edge Line Extraction of Standing Tree Trunk Based on Machine Vision

LI Wei, YUE Depeng

2018,(5):  113-122.  doi:10.13466/j.cnki.lyzygl.2018.05.018

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Based on the image processing and machine vision technology,the edge feature of the tree trunk image was extracted by the edge detection operator,and the linear feature of the tree trunk edge was studied.The results show that:Prewitt operator and Canny operator retain more edge details on the trunk background,but the detection rate of the trunk edge is higher,and the trunk edge continuity is better.The detection error of the edge of the tree between the Robert operator and the Prewitt operator is large.The Sobel operator,LoG operator and Canny operator have higher detection precision for the edge of the trunk.The Gaussian filtered standing images of Sigma 0.1,0.3,1.4 and 3 are edge-detected and the diameter pixel distance extraction value is compared with the visual interpretation value.The results show that the recognition bias of Sigma is 0.3~1.4.

Research Bulletin

GIS-based Sampling Method of Urban Forest Biomass

XU Yanxin, LI Mingyang, HAO Siyu

2018,(5):  123-127.  doi:10.13466/j.cnki.lyzygl.2018.05.019

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The large amount of carbon is stored in urban forest biomass which is the basic data reflecting the function of urban forest ecosystem.In view of the characteristics of high fragmentation,aggregation and heterogeneity,urban forest in Jiangning District,Nanjing,was taken as the research object,while the data of forest resource management survey in 2013 were collected as the main information source.Followed by the analysis of general surface properties of sampling population,taking two approaches of traditional and spatial sampling,seven sampling methods of forest biomass in the study area,such as simple random sampling and spatial stratification sampling,spatial balanced sampling were conducted.Several indicators of accuracy,cost,correlation and deviation were calculated to evaluate the performance of seven sampling methods.The results show that:(1)From the viewpoint of sampling cost,the survey cost of spatial stratified sampling and sandwich sampling is the lowest; (2)From the sampling error and accuracy,the spatial sandwich sampling error is the smallest and the accuracy is the highest,while the spatial simple sampling error is the largest and the precision is the lowest; (3) For spatial correlation,there is no spatial correlation between sampling points of spatial sampling; (4) As to estimation error,the estimation deviation of spatial balanced sampling and system sampling is the smallest,followed by the spatial stratified sampling and spatial sandwich sampling.Therefore,the spatial sandwich sampling and spatial balanced sampling can be given the top priority.

Study on Vegetation Restoration Dynamics on Sides of Expressway—A Case Study of Fuzhao Expressway from Fuzhou to Xianyou

YAO Jixue, QIU Rongzu, LIN Yuying, WANG Jiankai, YE Limin, HU Xisheng

2018,(5):  128-133.  doi:10.13466/j.cnki.lyzygl.2018.05.020

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In this paper,the Landsat series satellite images from 2010,2013 and 2016 are selected as the main data sources.Taking the Fuzhao high-speed section from Fuzhou to Xianyou as an example,the vegetation restoration dynamic change before and after the construction of the road section(2010—2016) is evaluated by using the vegetation normalization index.The results show that the annual vegetation NDVI fluctuates between 0.21 and 0.42 in 2010—2016,the maximum value is 0.42 in 2010,and the minimum value is 0.21 in 2016.In 2010—2013,due to the construction of Fushun Expressway,the vegetation degradation area of the road zone reached 66.95%,and the proportion of good ecological grade decreased from 58.96% to 20.35%.The vegetation degraded only 16.23% in 2013—2016,which is obviously less than that in 2010—2013.The proportion of excellent grade has increased from 20.35% to 35.08,which is closely related to the gradual attention paid to the ecological restoration of road zone in Fuzhou in recent years.

Study on Comprehensive Value Evaluation System of Forest Ancient Path

ZHUANG Yufan, MA Dongmei, YU Yanfeng, ZHANG Wanrong

2018,(5):  134-140.  doi:10.13466/j.cnki.lyzygl.2018.05.021

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At present,the research on protection and restoration of forest ancient path is gradually rising,and the evaluation of forest ancient path is the basis for filtering protection and restoration.Based on this,the paper tries to establish a comprehensive evaluation system of forest ancient path.First,32 evaluation indexes are obtained through filtering of the revised version of Delphy method.Then,through the Analytic Hierarchy Process,the judgment matrix of 22 comparison is constructed,and the relative weights of the 32 evaluation indexes are determined.Finally,a comprehensive evaluation system of forest ancient path including 8 dimensions and 32 evaluation indexes are established.

Conservation and Utilization of Psammophyte Resources in the View of Ecological Culture of Alashan Mongolian

DU Fang, Suriguga

2018,(5):  141-146.  doi:10.13466/j.cnki.lyzygl.2018.05.022

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The Alashan League is in desert,and the traditional ecological culture of Mongolian in Alashan is rich and unique.By investigation,interviews and collection,the paper studys the ecological view of Mongolian in Alashan.Ethnic customs,culture,the use of plant resources in folk life,and the traditional knowledge of ethnobotany and ethnoecology especially the protection and utilization of important psammophyte in the Alashan Desert are analyzed.It shows that worshipping natural trees,mountain and holy water were important expressions for protecting the ecological environment of Mongolian in Alashan.Utilization styles of herb,food,fodder and culture of plant resources of Mongolian in Alashan play the main roles.

New Development in Other Countries

Study on Forest Management Planning in the United States and China

LIU Yapei, DENG Huafeng, ZHU Jiyou, ZHANG Lu

2018,(5):  147-152.  doi:10.13466/j.cnki.lyzygl.2018.05.023

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The paper introduced the forest management planning in China and the United States,analyzed the gap between China and the United States in the field.Based on the experiences of the United States and Chinese national forest conditions,the paper put forward the following suggestions:(1) Promoting the forest management planning quality.(2) Improving the laws,regulations and policies of the forest management planning.(3) Utilizing advanced US management ideas and methods to promote sustainable development of resources,society,economy and ecology in China.