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Research of Key Technology for National Forest-land “One Map” Database XU Dengping,LI Hui,PANG Lijie,ZHANG Yuxing,HUANG Guosheng,HAN Aihui FOREST RESOURCES WANAGEMENT    2015, 0 (5): 36-43.   DOI: 10.13466/j.cnki.lyzygl.2015.05.007 Abstract （734）      PDF （3140KB）（3041）       Knowledge map    Save In this study,we introduced the contents of forest-land “one map” for the county,provincial and national levels,and studied the key technologies of forest-land “one map” information extraction,data check and the integration of database.Based on the WebService,we designed and developed a data management and service platform of national forest-land “one map”,and operated it online.lastly,the data application for forest-land “one map” was discussed. Reference | Related Articles | Metrics

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Forestry Development in Central and Eastern European Countries and Analysis on Future 16+1 Forestry Cooperation WANG Yanqin, CHEN Jie, GU Yali FOREST RESOURCES WANAGEMENT    2017, 0 (1): 153-159.   DOI: 10.13466/j.cnki.lyzygl.2017.01.024 Abstract （354）   HTML （12）    PDF （1343KB）（1942）       Knowledge map    Save As the Belt and Road Initiative and 16+1 Cooperation mechanism have been established and implemented,the central and eastern European countries,which are located along the Belt and Road,are the key area for the forestry cooperation with China.These countries boast rich forest resources,strong sci-tech strength and good foundation for industrial development,which was laid a solid foundation for the forestry cooperation with China.The paper analyzed the forest resources,forestry laws and regulation & policies,forestry governance regime,forest product production and trade,concluded that the central and eastern European countries are rich in forest resources,have improved forest governance mechanism in place,and own the good foundation for forest product industry.Based on this,the authors explored the potentials for China and the central and eastern European countries to carry out forestry cooperation as well as the possible risks to be encountered.This study is expected to provide references and supports for the future 16+1 forestry cooperation. Table and Figures | Reference | Related Articles | Metrics

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Comparison of Vegetation Classification Methods Based on High Resolution Remote Sensing Image ZHANG Diandai, WANG Xuemei FOREST RESOURCES WANAGEMENT    2021, 0 (3): 108-113.   DOI: 10.13466/j.cnki.lyzygl.2021.03.017 Abstract （594）   HTML （18）    PDF （2282KB）（1822）       Knowledge map    Save Taking the oasis-desert transition zone in the eastern part of Kuqa City,Xinjiang as the research object and using GF2 remote sensing image as the main data source,on the basis of field investigation,supervised classification based on pixel and object oriented classification based on hierarchical multi-scale segmentation were used to accurately identify the vegetation information in the study area.The results showed that:1) The results of supervised classification and object-oriented classification were roughly the same.The overall classification accuracy rates of both methods could reach more than 94%,and the Kappa coefficient was greater than 0.93,both of which reflect higher classification accuracy.2)Compared with supervised classification,the object-oriented classification method improved the overall classification accuracy by 3.79%,and the Kappa coefficient increased by 0.032,which had a better classification effect and classification accuracy.By determining the optimal scale segmentation,the object-oriented classification method can more accurately extract vegetation information in the study area,and provide a scientific basis for the reasonable evaluation of the regional land desertification status. Table and Figures | Reference | Related Articles | Metrics

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Key Data Results and Trend Analysis of the Sixth National Survey on Desertification and Sandification ZAN Guosheng, WANG Cuiping, LI Feng, LIU Zheng, SUN Tao FOREST RESOURCES WANAGEMENT    2023, 0 (1): 1-7.   DOI: 10.13466/j.cnki.lyzygl.2023.01.001 Abstract （3700）   HTML （307）    PDF （1091KB）（1809）       Knowledge map    Save The Sixth National Survey on Desertification and Sandification was based on the results of the Third National Land Survey,using 2019 as the benchmark year.The results showed a comprehensive status of desertification and sandification in China.This paper presented a brief overview of this survey,the status and dynamic changes of desertification and sandification in China,conducted a comprehensive analysis of the current situation,and proposed some suggestions for combating desertification and sandification.The survey results showed that,until 2019,the desertification land area in China was 257.371 3 million hm2 and the sandification land area was 168.782 3 million hm2.Compared with 2014,the desertification area of China decreased by 3.788 0 million hm2 with an average annual decrease of 757.6 thousand hm2.The sandification area of China decreased by 3.335 2 million hm2 with an average annual net reduction of 667 thousand hm2. Table and Figures | Reference | Related Articles | Metrics

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Analysis of General Status and Examination of Estimation Errors for One-Variable Tree Volume Tables in China ZENG Weisheng, YANG Xueyun FOREST RESOURCES WANAGEMENT    2023, 0 (2): 43-49.   DOI: 10.13466/j.cnki.lyzygl.2023.02.006 Abstract （466）   HTML （22）    PDF （1271KB）（1668）       Knowledge map    Save Tree volume tables are important basic tools in forest inventory and monitoring.One-variable tree volume tables have been used in continuous forest inventories (CFIs) of China for more than 40 years,but we have never systematically tested the applicability in nowadays.In this paper,the general status of currently used one-variable tree volume tables were analyzed from the aspects of quantity,zoning,tree species,and model type;and most of one-variable tree volume tables were examined by using the tree height data of 138 911 sample trees.The results showed that the total number of one-variable tree volume tables used in China's CFI reached 707,and the number of provincial volume tables varied greatly,from 3 to 171;there were 18 provincial regions divided into several modeling populations,while others were based on whole provincial regions;there were also great differences in the number of tree species groups for developing tree volume tables in each provincial region,with the least being 3 and the most being 31;a total of 25 models were used to develop tree volume tables,but nearly 90% of the tree volume tables were based on 5 models;about 70% of the one-variable tree volume tables exceeded the allowable error limit of ±5%,and 10 of 31 provincial regions and four forest industry groups exceeded the range of ±10% of the volume estimation errors,among which the maximum negative bias was -14.86% and the maximum positive bias was 23.22%.Based on the results of analysis,it is suggested that at the end of this inventory,a comprehensive and systematic applicability test should be carried out on the current one-variable tree volume tables;and unified revision should be made on the tree volume tables with significant deviation,so as to optimize and adjust the division of modeling populations,tree species grouping and the volume model type;and the change of volume estimation method from one-variable table to two-variable table should be actively promoted. Table and Figures | Reference | Related Articles | Metrics

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Investigation on Current Situation of Eucommia ulmoides Resources in Hunan Province WANG Xiaoyu, CHEN Yifeng, WU Jiangbo, DU Hongyan, JIN Xiaoling FOREST RESOURCES WANAGEMENT    2015, 0 (3): 146-150.   DOI: 10.13466/j.cnki.lyzygl.2015.03.028 Abstract （220）      PDF （1084KB）（1654）       Knowledge map    Save The result of investigation on Eucommia ulmoides resources in Hunan Province was achieved by collecting data from the forestry science and technology extending stations of the 14 cities and a detailed survey at Eucommia growing place shows what Eucommia resources are distributed in the whole province,and 11551.6 hm2 of Eucommia in Hunan is mainly distributed in Cili,Zhangjiajie; Baojing,Xiangxi Tujia and Miao Autonomous Prefecture,Anhua,Yiyang and Shimen,Changde.The cultivation area of Eucommia in Cili is 4969.1 hm2.Eucommia trees in Hunan Province are mainly 1 to 5 years old,16-25 years old and 60 years old.Conventional EU cultivation for medical purposes is the major cultivation mode; a few places began to use the orchard-like intensive cultivation and three-dimensional cultivation.The problems are the lack of management and backward cultivation mode. Reference | Related Articles | Metrics

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Research on the Planning of Amur Tiger and Amur Leopard National Park LIANG Bingkuan, LIU Yang, TANG Xiaoping, BAN Yong, JIANG Yafang, KONG Ying, LI Bingbing, BAI Ling FOREST RESOURCES WANAGEMENT    2020, 0 (6): 23-30.   DOI: 10.13466/j.cnki.lyzygl.2020.06.005 Abstract （1558）   HTML （73）    PDF （1976KB）（1621）       Knowledge map    Save The establishment of Amur Tiger and Amur Leopard National Park is a major measure to protect the rare and endangered species,such as Amur tiger and Amur leopard,and their habitats.It is of global significance to protect the ecological security barrier as well.The national park is facing a key window period for the restoration of populations of Amur tiger and Amur leopard,also the reform period of the national forest area and the historical transformation period of the natural protected area system.The situation is complicated and changeable.The planning,at first,puts forward the philosophy of construction and development of adhering to natural priority,national interest,community benefit and common people sharing.Secondly,the planning clarifies,in the initial stage,the main management objective is to make the populations of Amur Tiger and Amur Leopard stabilized and reproduced,to restore and maintain the integrity of the forest ecosystem,and to promote the formation of both production and living modes with eco-friendliness in a community.And then,the planning adopts methods such as system planning,adaptability planning and LAC framework model to propose the solutions for key issues of national park such as boundary and range,control zoning,management system,ecological restoration and community development. Table and Figures | Reference | Related Articles | Metrics

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Top-level Design of the Natural Protected Area System in China TANG Xiaoping, JIANG Yafang, LIU Zengli, CHEN Junzhi, LIANG Bingkuan, LIN Chen FOREST RESOURCES WANAGEMENT    2019, 0 (3): 1-7.   DOI: 10.13466/j.cnki.lyzygl.2019.03.001 Abstract （583）   HTML （17）    PDF （1068KB）（1620）       Knowledge map    Save This paper interprets the Guidance for Establishing the Natural Protected Area System based on National Parks.According to the practicalities of situation of natural protected areas in China and the principles of reform,innovation and international integration,from the perspective of national top-level design,this paper elaborates the great significance,the core idea and basic connotation of constructing natural protected areas based on the national parks with Chinese characteristics.And It puts forward the classification system and development goals of natural protected area system and clarifies the basic tasks,such as establishing a unified hierarchical and classified management system for innovating the regulatory mechanism of scientific norms,promoting the integration and optimization of natural protected areas,solving the historical issue and constructing the guarantee mechanism of the governance system of natural protected areas. Table and Figures | Reference | Related Articles | Metrics

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Advances in Remote Sensing Retrieval of Forest Aboveground Biomass REN Xiaoqi, HOU Peng, CHEN Yan Forest and Grassland Resources Research    2023, 0 (6): 146-158.   DOI: 10.13466/j.cnki.lczyyj.2023.06.018 Abstract （293）   HTML （12）    PDF （1148KB）（1572）       Knowledge map    Save Forest aboveground biomass is one of the key indicators to reflect the status of forest ecosystem,which is of great significance to global climate change and China's carbon peak and carbon neutrality.With the rapid development and increasing maturity of remote sensing technology,it has become the main technical means for retrieving above-ground forest biomass in large areas.In this paper,the research progress of remote sensing inversion of forest aboveground biomass was discussed from two aspects through systematic review of relevant literatures at home and abroad.From the perspective of data source,it can be summarized as inversion methods of optical remote sensing data,synthetic aperture radar data and LiDARdata,and the effective information,advantages and limitations provided by each data source are expounded and analyzed.From the perspective of inversion model,it can be summarized as multiple regression model,machine learning algorithm and mechanism model,and the characteristics of different models are discussed and analyzed combined with practical application cases.Finally,this paper summarized the existing problems in the inversion of forest above-ground biomass by remote sensing,and prospected the direction and hotspots of forest above-ground biomass inversion by remote sensing in the future. Table and Figures | Reference | Related Articles | Metrics

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Concession Management Analysis and Operation Model Selection of China's National Parks GENG Songtao, ZHANG Hongxia, YAN Rong FOREST RESOURCES WANAGEMENT    2021, 0 (5): 10-19.   DOI: 10.13466/j.cnki.lyzygl.2021.05.002 Abstract （1105）   HTML （49）    PDF （1114KB）（1566）       Knowledge map    Save National park is one of the core tasks of China's protected area system construction.In order to achieve the win-win goal of national park ecological protection and resource appreciation,franchising is a good method that can be used in its operation and management.According to the classification,the national park franchise in our country belongs to the government concession.In order to regulate the concession management,this article used a comparative analysis method to analyze the O&M model (Operation and Maintenance Contract),the LOT model (Lease-Operate-Transfer),and BOT (Build-Operate-Transfer)mode and TOT (Transfer-Operate-Transfer)concession model are compared and analyzed,and it was concluded that the TOT model is currently the better choice for national park concession in China,and other models can also be used in conjunction with local conditions.In addition,in view of the existing problems in legal regulation,operation management,fund revenue and expenditure,and supervision of current characteristics of operation,four special measures such as improving the legal system,standardizing operation procedures,formulating revenue and expenditure standards,and improving the supervision mechanism were proposed to effectively contribute to China's ecological civilization.This article studied and explored the future development path of concession in national park management,so as to provide reference and inspiration for promoting the development of national parks. Table and Figures | Reference | Related Articles | Metrics

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Study on Status and management strategy of Forest Health in Shisanling Forest Farm in Bejjing PENG Qiang,YUAN Shibao,0U Yang,XU Chengyang,GAN Jin FOREST RESOURCES WANAGEMENT    2015, 0 (2): 163-170.   DOI: 10.13466/j.cnki.lyzygl.2015.02.028 Abstract （230）      PDF （1164KB）（1468）       Knowledge map    Save This sludy firsaly analyes problems existing in the Shisanling Foret Farm,such as lack of tree specis divesitl and imblance of forel slrucure. An evaluaion syslem for heah of foresl eosystsm is develped, uilding on finding from prevou sudie; Baed on survey data, health evaluation for forest resources of 40 compartments ,798 sub-compartments in an area of 8504. 88 hectares were conducted at comprment and sub-ompatment level rspeptivly According to the evaluation resuls，forest health management solutions put forward. Reference | Related Articles | Metrics

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Analysis on Characteristics of Ancient or Rare Trees in Yuping Dong Autonomous County and Their Protection Countermeasures YI Shanjun, YAO Ye, CUI Jian, SHI Meilin, ZENG Weisheng FOREST RESOURCES WANAGEMENT    2020, 0 (2): 37-45.   DOI: 10.13466/j.cnki.lyzygl.2020.02.007 Abstract （543）   HTML （8）    PDF （1453KB）（1444）       Knowledge map    Save Based on the spot investigation,consulting document and interviewing,the species,quantities,ages,protection grades,growth potential,floristic characteristics,protection conditions,current problems of the ancient or rare trees were studied in Yuping Dong Autonomous County. The result showed that there were up to 485 ancient or rare trees in Yuping Dong Autonomous County,which belong to 23 families,30 genera,34 species. There are 32 trees over 500 years,38 trees between 300 years and 499 years,415 trees between 100 years and 299 years.There was significant correlation with the altitude,slope and the number of ancient or rare trees,there were many differences among them. The floristic characteristics of the ancient or rare trees were also analyzed,the result showed that the temperate distribution-type had a significant dominance,and the tropic distribution-type played a secondary role in the floristic characteristics. There are lots of problems in the protection of ancient or rare trees,such as the shortage of funds,low maintenance level,etc. Therefore,some effective countermeasures should be adopted,including widen financing channel,developing professional contingent,constructing Ancient Trees Park,etc. Table and Figures | Reference | Related Articles | Metrics

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Natural Distribution and Characteristics of China’s Rare and Endangered Species in Shandong Province LIU Dan, ZANG Dekui FOREST RESOURCES WANAGEMENT    2018, 0 (1): 155-158.   DOI: 10.13466/j.cnki.lyzygl.2018.01.022 Abstract （507）   HTML （12）    PDF （1037KB）（1416）       Knowledge map    Save According to the investigation result of forest tree germplasm resources in Shandong province,there are 15 Chinese rare and endangered tree species naturally distributed there,which belongs to 12 families,13 genera,and the characteristics of their natural distribution are summarized.Suggestions of protection are put forward for carrying out related research in the future. Table and Figures | Reference | Related Articles | Metrics

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FOREST RESOURCES WANAGEMENT    2021, 0 (1): 0-0.   Abstract （424）      PDF （41523KB）（1348）       Knowledge map    Save Related Articles | Metrics

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Discussion on the Final-period Management of Ecological Forest in Sandy and Wasteland Areas—Take Yanqing County of Beijing Municipality as an example XI Ruilan FOREST RESOURCES WANAGEMENT    2014, 0 (5): 39-42.   DOI: 10.13466/j.cnki.lyzygl.2014.05.008 Abstract （273）      PDF （1158KB）（1339）       Knowledge map    Save The unreclaimed lands and desolated beaches in Yanqing County are the main source of sandstorms in Beijing.The ecological management in that area directly affects the environment quality in downtown Beijing.With the wasteland afforestation project,the environment in Yanqing district has improved greatly.In order to meet the requirements of ecological conservation in the capital as soon as possible,we are supposed to attach importance to the subsequent management of this project.In view of existentissues of the subsequent management of wasteland ecological forest in Yanqing county,the author presents some countermeasures and suggestions to raise the comprehensive benefits in ecology,society,economy and landscape. Reference | Related Articles | Metrics

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Grassland Vegetation Coverage Retrieval Based on Sentinel-2 Multi-Spectral Remote Sensing Data: A Case Study of Inner Mongolia Autonomous Region TIAN Haijing, WANG Lin, HAN Liliang, FAN Yunbao, YANG Jilin FOREST RESOURCES WANAGEMENT    2022, 0 (4): 134-140.   DOI: 10.13466/j.cnki.lyzygl.2022.04.017 Abstract （501）   HTML （18）    PDF （4757KB）（1323）       Knowledge map    Save High-precision grassland vegetation coverage remote sensing estimation model is important for quantitative assessment of grassland quality and fine management of grassland.Based on Sentinel-2 multi-spectral remote sensing data and measured sample plots in Inner Mongolia autonomous Region,grassland vegetation coverage was modeled and inverted.The results showed that:1)There was a significant correlation between the 23 vegetation indexes and the measured vegetation coverage (P<0.001),and the highest correlation coefficient was NDVI with a correlation coefficient of 0.834;2)The underestimation of sinusoidal function was more obvious in the high value part (coverage>75%),while the overestimation of linear function was more obvious in the low value part (coverage<25%),by using these two kinds of functions to simulate vegetation coverage,the results were better;3)The grassland types were divided into 6 groups to modeling vegetation coverage respectively.Finally,correlation coefficient between simulated and measured vegetation coverage for the 1 894 sample plots was R2=0.722,P<0.01,RMSE=12%;4)The vegetation coverage of different grassland types in Inner Mongolia from high to low was 78.91% for mountain meadow,73.7% for temperate meadow steppe,53.89% for lowland meadow,52.57% for temperate steppe,32.76% for temperate desert steppe,25.52% for temperate grassland desert and 19.29% for temperate desert. Table and Figures | Reference | Related Articles | Metrics

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Status Quo and Improvement of Forest Fire Prevention and Control Ability in China-Myanmar Border in Yunnan Province GUAN Pingao, PENG Xingzi, CHEN Yuyong, ZHANG Hongfei, JIANG Jian, LI Shiyou FOREST RESOURCES WANAGEMENT    2021, 0 (5): 153-159.   DOI: 10.13466/j.cnki.lyzygl.2021.05.020 Abstract （547）   HTML （8）    PDF （1075KB）（1307）       Knowledge map    Save Based on the investigation of the basic situation and characteristic practices of forest fire prevention and control in prefectures (cities)and counties in China-Myanmar border in Yunnan Province,the main problems and the necessity of improving its forest fire prevention and control ability were analyzed.From three aspects,namely forest fire prevention,fire fighting and emergency support,25 specific measures were put forward to improve this ability,including ecological barrier system,forest fuel treatment,water fire extinguishing equipment,team building,joint prevention and control fire,and general survey of fire hazard sources,etc.At the same time,some relevant suggestions were proposed.Through research and discussion,this paper aimed to improve the comprehensive prevention and control ability of forest fire in China-Myanmar border in Yunnan Province. Table and Figures | Reference | Related Articles | Metrics

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Practices and Exploration of Forest Ticket System Reform in Sanming of Fujian Province WANG Weibin, LI Shan FOREST RESOURCES WANAGEMENT    2021, 0 (4): 17-22.   DOI: 10.13466/j.cnki.lyzygl.2021.04.003 Abstract （885）   HTML （23）    PDF （1144KB）（1179）       Knowledge map    Save The key approaches to turn lucid waters and lush mountains into invaluable assets are to focus on core problems such as difficulty in discovering the value of forestry basic assets,low pricing efficiency,and poor liquidity,through the establishment and improvement of market-oriented forest resource value discovery mechanisms,product pricing mechanisms,and circulation trading mechanisms to gradually promote the capitalization of ecological resources,the securitization of ecological assets,and the marketization of ecological securities trading.Since the 19th National Congress of the Communist Party of China,Sanming has been implemented the spirit of General Secretary Xi Jinping's instructions on comprehensive deepening reform,especially the forestry reform in Fujian,explored the market-oriented mechanism for value discovery and realization of ecological products based on the reform concept of "lucid waters and lush mountains are invaluable assets" and continued to deepen the fourth round of forest reform with forest ticket system innovation as a breakthrough.Taking Sanming as an example,this paper summarized the pilot situation and main experience of the current forest ticket system reform,analyzed the current problems and expected benefits in the exploration of the forest ticket system in Sanming,and provided opinions and implementation suggestions for continuing to deepen the reform of the forest ticket system. Table and Figures | Reference | Related Articles | Metrics

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Population Size Structure and Life Table Analysis of Nyssa sinensis in Sanming City,Fujian Province HUANG Yunpeng, SU Songjin, FAN Fanrong, WANG Bangfu, HUANG Sumei, CHEN Shaohuang FOREST RESOURCES WANAGEMENT    2015, 0 (3): 85-88.   DOI: 10.13466/j.cnki.lyzygl.2015.03.017 Abstract （323）      PDF （1190KB）（1151）       Knowledge map    Save To comprehensively understand the variation of Nyssa sinensis population in Sanming City,the space time method and smoothing technique were used in life table analysis.Results showed that diameter at breast height (DBH)structure of N.sinensis population is at temporal stability.The peak of mortality rate and vanishing rate both appeared at the age of 3-4 and 8 years,respectively.The survival curve can be described by Deevey-Ⅱtype.Four function curve of survival exhibited that N.sinensis population decreased at young stage and grew stably at mature stage and old stage.The results can provide a scientific basis for the management of N.sinensis population. Reference | Related Articles | Metrics

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Fire Environment of Forest Fire Formation in Liangshan Prefecture BAI Ye, WANG Bo, WU Yingda, LIU Bo FOREST RESOURCES WANAGEMENT    2020, 0 (5): 116-122.   DOI: 10.13466/j.cnki.lyzygl.2020.05.017 Abstract （579）   HTML （17）    PDF （1468KB）（1134）       Knowledge map    Save Forest fire has seriously damaged forest resources,threatened the safety of life and property,and caused huge losses.Fire environment is an important condition for forest burning.Analyzing the forest fire environment is of great theoretical and practical significance for studying forest fire behavior and adopting effective forest fire management policies.On the basis of collecting meteorological data,forest resource data and topographic data of Liangshan Prefecture,this paper analyzes the fire environment characteristics of forest fire in Liangshan Prefecture from three aspects:fuel,meteorological conditions and topographic conditions.In addition,the countermeasures of forest fire management,such as strengthening fire prevention media campaign,strengthening forest fuel management,strengthening forest management,improving infrastructure construction,and improving emergency response level,were put forward.The research results can provide basis for fire behavior analysis and forest fire management in Liangshan Prefecture. Table and Figures | Reference | Related Articles | Metrics