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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 （411）      PDF （3140KB）（2090）       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 （248）   HTML （3）    PDF （1343KB）（1822）       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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FOREST RESOURCES WANAGEMENT    2021, 0 (1): 0-0.   Abstract （357）      PDF （41523KB）（1334）       Knowledge map    Save 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 （1346）   HTML （51）    PDF （1976KB）（1097）       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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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 （869）   HTML （26）    PDF （1114KB）（938）       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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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 （2045）   HTML （185）    PDF （1091KB）（933）       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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Study on the Promotion Role of REDD+ Mechanism to Sustainable Forestry Development in China—Based on the Case Analysis of Forestry Carbon Development in Beijing HE Guimei, ZHANG Feng, YU Haiqun, CHEN Junqi, ZHOU Caixian FOREST RESOURCES WANAGEMENT    2014, 0 (5): 18-22.   DOI: 10.13466/j.cnki.lyzygl.2014.05.004 Abstract （288）      PDF （1097KB）（901）       Knowledge map    Save REDD + mechanism is an effective tool to reduce the greenhouse gas emissions for global forestry,recently REDD+ projects have been extensively planned and implemented in Brazil and other tropical regions.The successful promotion of REDD+ mechanism is able to exert great impacts on the forestry development strategy,policy,technology,management and interest allocation worldwide.The development of forestry carbon in Beijing is used as a typical case in this article to analyze and summarize the main actions of REDD+ mechanism development in China,in order to make feasible policy suggestions to promote the development of REDD+ in China. 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 （244）      PDF （1190KB）（858）       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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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 （277）   HTML （7）    PDF （1271KB）（850）       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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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 （683）   HTML （11）    PDF （1144KB）（772）       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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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 （326）   HTML （7）    PDF （4757KB）（739）       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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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 （358）   HTML （2）    PDF （1037KB）（722）       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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Comparison and Analysis on Two Kinds of Sample Plot Survey Methods of Systematic Sampling in the Forest Inventory for Planning and Design XU Zhengliang, WANG Yingquan, LU Yongfei, YANG Jie FOREST RESOURCES WANAGEMENT    2016, 0 (3): 140-144.   DOI: 10.13466/j.cnki.lyzygl.2016.03.025 Abstract （377）      PDF （974KB）（696）       Knowledge map    Save This paper took systematic sampling as an example in the fourth forest inventory for planning and design in Jinping County of Guizhou Province,and the point sampling with angle gauge & volume standard table and circle-shaped sample tally & two-way tree volume table were compared and analyzed.The results showed that the precisions of the volume estimates from the point sampling with angle gauge and circle-shaped sample tally were respectively 90.28%and 90.38%,exceeding 90% which is the precision standard of the technical specification for the forest inventory in Guizhou.The difference of total forest stand volume between two forest inventories was only 1.63%;The sample tree of the point sampling with angle gauge was less,but more efficient than the circle-shaped sample tally in sampling,and the load of field work of the former was about 40% of the latter;the number of trees per hectare,cross-sectional area at breast height of per hectare and hectare volume were lower than the circle-shaped sample tally in the precisions of estimates.Subcompartment volume cruise with angle gauge & volume standard table,systematic sampling with circle-shaped sample tally & two-way tree volume table are applicable in the sampling control of total volume. Reference | Related Articles | Metrics

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Biomass Carbon Stocks and Carbon Stock Economic Value of Forests in Beijing ZHANG Feng, PENG Zuodeng FOREST RESOURCES WANAGEMENT    2021, 0 (6): 52-58.   DOI: 10.13466/j.cnki.lyzygl.2021.06.009 Abstract （880）   HTML （53）    PDF （1734KB）（689）       Knowledge map    Save Based on the forest inventory data of Beijing from the seventh (2004-2008),the eighth (2009-2013) and the ninth (2014-2018),the continuous biomass expansion factor method was used to evaluate the dynamic changes of forest carbon stocks in Beijing during 2004-2018,and the carbon tax assessment method was used to estimate the economic value of the forest carbon sink in Beijing from 2004 to 2018. The results showed that: the forest carbon storage in Beijing was 7.09Tg from 2004 to 2008,9.43Tg from 2009 to 2013,and 15.39Tg from 2014 to 2018. The forest carbon density was 19.94,21.97,and 24.75t/hm2,respectively. The young forest accounted for the highest proportion of total carbon storage,accounting for 52.04%,47.64% and 53.42% in the three inventory periods respectively,while middle forest accounted for 23.05%,24.78% and 21.00% in the same period respectively. The economic value of forest biomass carbon sink in Beijing was 5.075 billion yuan between 2004 to 2008,5.725 billion yuan between 2009 to 2013,and 7.652 billion yuan between 2014 to 2018,the annual increment of economic value of forest biomass carbon sink in 15 years was 171.8 million yuan. The carbon stocks and carbon stock economic value of the forest resources in Beijing showed an increasing trend,but the proportion of young forest and middle forest was relatively high,and the carbon density of forests was low,so the scientific cultivation and management of the forest should be strengthened in order to continuously improve the function and value of the forest carbon sink. Table and Figures | Reference | Related Articles | Metrics

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Practice and Enlightenment of the Central and Local Cooperation to Build National Reserve Forest Project—Take the Chongqing National Reserve Forest Project as an example LUO Lian FOREST RESOURCES WANAGEMENT    2021, 0 (1): 11-16.   DOI: 10.13466/j.cnki.lyzygl.2021.01.002 Abstract （841）   HTML （50）    PDF （1545KB）（679）       Knowledge map    Save The implementation of the national reserve forest project is a vivid practice of the concept that lucid waters and lush mountains are invaluable assets.It is an important way to maintain national ecological security and a vital opportunity for the forestry industry to go through transformation and upgrading to high-quality development.The construction of the national reserve forest requires a large amount of funds,but the traditional financial investment is far from meeting the demand.The government is expected to encourage market entities to use development and policy capital to build the national reserve forest.This paper tries to analyze the the central and local cooperation in building national reserve forests in recent years,and based on the research on the innovation mechanism of the national reserve forest project in Chongqing,policy suggestions focusing on public welfare,people's livelihood and innovation are proposed to improve relevant industry policies. Reference | Related Articles | Metrics

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Review on Causes to Forests Struck by Lightning and Countermeasures BAI Ye, LI Hui, WANG Bo, JIA Yisong, WU Yingda FOREST RESOURCES WANAGEMENT    2019, 0 (6): 7-11.   DOI: 10.13466/j.cnki.lyzygl.2019.06.002 Abstract （684）   HTML （30）    PDF （1498KB）（678）       Knowledge map    Save This article summarizes the ypical cases of lighting strikes at home and abroad,deeply analyze the lightning strike wood characteristics,the mechanism of lightning fire happen,time and space distribution characteristics,combining with forest fire team extinguishing of actual combat experience,more than 70 years from the fire found positioning,anticipation,close to the fire,fire safety saves summarized four aspects,such as lightning fire prevention and control difficulty,and puts forward corresponding countermeasures,the lightning fire points out the future research direction,provides the basis for prevention and control of lightning fire science. Table and Figures | Reference | Related Articles | Metrics

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A New Mode for Forest Resource Monitoring in the Era of Big Data HUANG Guosheng, LIU Qian, PU Ying, SUN Xiangnan FOREST RESOURCES WANAGEMENT    2020, 0 (6): 1-5.   DOI: 10.13466/j.cnki.lyzygl.2020.06.001 Abstract （1199）   HTML （102）    PDF （926KB）（653）       Knowledge map    Save Over the past six decades of exploration and development,China’s forest resources monitoring has made great progress.With the in-depth advancement of ecological civilization construction and forestry reform development,higher requirements have been placed on the timeliness,synergy,up-to-dateness of monitoring data and capabilities of information service.In the era of Big Data,a highly flexible “mosaic” concept is applied to build a new “mosaic” mode for forest resource monitoring.The original “sliced” patch data can be deeply integrated and shared in real time on the Internet,which significantly improves forest resources monitoring capabilities and information service.Constructed in accordance with the Big Data thinking,the National Forest Resources Smart Management Platform has the basic prototype of the Big Data Cloud Platform with forest resources monitoring “mosaic” mode.To adapt to the new requirements of ecological civilization and modernization of forestry,the platform should be extended and applied to various types of professional investigation and business applications,gradually establish a new mechanism,based on Big Data,for process monitoring and smart services of Internet plus data collection and business applications.Through data fusion,business digitization,data mining,and service collaboration technology innovation,the new mechanism will effectively enhance forest resources monitoring capabilities,improve the information service level and make new contributions to the high-quality development of forestry and grass industry. Reference | Related Articles | Metrics

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Difference Analysis and Integration between Forest Resources Management "One Map" and the Third National Land Survey CHENG Weiya, ZHANG Zhuoman, WANG Han, JIANG Haiming, JI Min, LI Yinlong FOREST RESOURCES WANAGEMENT    2021, 0 (6): 6-11.   DOI: 10.13466/j.cnki.lyzygl.2021.06.002 Abstract （2522）   HTML （115）    PDF （2114KB）（642）       Knowledge map    Save Realizing the substantive integration of basic investigation and special investigation is an important content of natural resources investigation.In order to solve the problems of inconsistent concepts,overlapping contents and contradictory indicators of forest land survey data among different departments,this paper took Huangdao District of Qingdao Citys an example,integrated the "one map" of forest resources management and the data of the third national land survey,and deeply analyzed the differences between them from the perspectives of achievement data,survey boundary,classification standard and survey content.Based on the causes of differences,this paper put forward corresponding solutions and discussed the final data fusion technology,so as to provide effective references for the unified investigation of natural resources. 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 （445）   HTML （9）    PDF （2282KB）（641）       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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Scheme Design and Main Result Analysis of The Fouth National Survey on Giant Pandas TANG Xiaoping, JIA Jiansheng, WANG Zhichen, ZHANG Dehui, YU Baocheng, YU Jianbing, Gong Minghao, LIU Yang FOREST RESOURCES WANAGEMENT    2015, 0 (1): 11-16.   DOI: 10.13466/j.cnki.lyzygl.2015.01.002 Abstract （681）      PDF （1128KB）（641）       Knowledge map    Save In order to meet the needs of giant panda conservation and management,the State Forestry Administration conducted the Fourth National Survey on Giant Pandas from 2011 to 2014.The survey covers seven aspects,including wild population,habitats,sympatric animals,disturbance,conservation and management,social economic conditions of distribution areas and captive population.We obtain overall information on giant pandas.This article describes the technical scheme in The Fourth Survey,it shows some of the main survey results and analyses the main dynamic changes since the end of the Third Survey. Reference | Related Articles | Metrics