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Study on the Current Situation and Modernization of State-Owned Forest Farms in Guizhou Province WEN Yu FOREST RESOURCES WANAGEMENT    2022, 0 (3): 36-41.   DOI: 10.13466/j.cnki.lyzygl.2022.03.006 Abstract （774）   HTML （191）    PDF （995KB）（431）       Knowledge map    Save This paper expounded the present situation and modernization construction mode of state-owned forest farms in Guizhou Province,analyzed the problems and shortcomings faced by the development of state-owned forest farms,and put forward the ways and measures to solve these problems,in order to provide reference for promoting the modernization construction of state-owned forest farms in Guizhou Province and realizing high-quality sustainable development. Reference | Related Articles | Metrics

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Research on the Construction of Comprehensive Evaluation Index System of Natural Resources ZUO Song, HU Li, YANG Lina FOREST RESOURCES WANAGEMENT    2022, 0 (3): 12-18.   DOI: 10.13466/j.cnki.lyzygl.2022.03.002 Abstract （534）   HTML （19）    PDF （999KB）（137）       Knowledge map    Save By collecting and sorting out relevant indicator systems and methods in the field of comprehensive evaluation of natural resources in China,some existing problems in the current evaluation system were summarized.On the basis of analyzing the key issues of natural resources management,combining with the relevant norms and standards published by the natural resources,forest and grassland,water conservancy,ecological environment and other departments,the comprehensive evaluation indicator system of natural resources with 12 second-level indicators and 41 third-level indicators was constructed from five dimensions of natural resources: background status of natural resources,efficient use of natural resources,green protection of natural resources,quality life of natural resources and governance status of natural resources,which will be expected to act as a reference for making a developed top-level design of natural resource evaluation,and constructing regional classification,multi-dimensional and multi-indicator of comprehensive evaluation indicator system. Table and Figures | Reference | Related Articles | Metrics

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Research on the Plot Survey and Load Estimation of National Forest Fuels YANG Xueqing, SUN Zhichao, CHAI Zheng, QIU Yiwen, JIANG Chunying FOREST RESOURCES WANAGEMENT    2022, 0 (6): 1-6.   DOI: 10.13466/j.cnki.lyzygl.2022.06.001 Abstract （377）   HTML （63）    PDF （934KB）（142）       Knowledge map    Save From the viewpoint of tediousness and professionalism of forest fuel load investigation,a stratified sampling system for the plot survey of forest fuel loads at national and provincial scale were developed based on five commonly used indicators,namely vegetation area,tree species,stand origin,age group and canopy density.Within each specific plot,the fuel loads of tree-layer can be estimated by using the data of individual tree survey combined with the algometric biomass model or the biomass expansion factor,while fuel loads of shrub-,herb-,litter- and humus-layer should be jointly estimated by the quadrat survey and the data of sample moisture content.This method has important guidance and reference significance for the survey and estimation of forest fuel loads at national or regional scale. Table and Figures | Reference | Related Articles | Metrics

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Realization Path of High-Quality Development of National Parks TANG Xiaoping FOREST RESOURCES WANAGEMENT    2022, 0 (3): 1-11.   DOI: 10.13466/j.cnki.lyzygl.2022.03.001 Abstract （346）   HTML （20）    PDF （1577KB）（152）       Knowledge map    Save China officially established the first batch of five national parks in 2021,entering a new stage of national park development.By combing the development tasks of five national parks approved by the state,this paper made it clear that the development focus of national park was to build a clear and standardized asset property right system,a unified and efficient ecological governance system,a strong public service system,and an overall and moderate community coordination mechanism.This paper focused on the realization path of high-quality development of national parks from nine aspects: planning and implementation,demarcation and marking,institutional setting,asset supervision,infrastructure,monitoring and perception,public service and community coordination.The state and governments at all levels should provide basic guarantee from the aspects of brand building,institutional system,scientific and technological support and capital investment,so as to provide reference for the development and management of national parks. Table and Figures | Reference | Related Articles | Metrics

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Construction and Practices of Forest Land Gradation and Classification—A Case Study of Forest Land in Hainan Province SHI Tian, WU Jianwei, LI Xiaoxia, WU Bangao, ZHANG Hongwei FOREST RESOURCES WANAGEMENT    2022, 0 (6): 19-25.   DOI: 10.13466/j.cnki.lyzygl.2022.06.004 Abstract （299）   HTML （22）    PDF （1165KB）（79）       Knowledge map    Save This paper took the forest land resources in Hainan Province as an example to carry out the practical research work based on the General Rules for Gradation and Classification of Natural Resources for the first time.This paper had created a classification index interpretation model that could not directly obtain data,which constructed an evaluation scheme for the classification of forest land in Hainan Province by the method of factor and correction,and clearly adopted the five grade and five class evaluation system.The results indicated that 18.2474 million hm2 of forest land was the phased achievement of the "The Third Land Survey" project in Hainan Province and there were 2.1252 million basic units for forest land classification and grading,with one grade of each plot.There were actually four grades from 1 to 4;The commercial forest land was 7.8809 million hm2,and there were actually five grades from 1-5;The forest land of public welfare forest was 10.3665 million hm2,and there were actually 1-5 levels.The evaluation results reflected the actual situation of forest land in Hainan,and provided a reference for the standardization and procedure of national forest land classification with the promotion of forest land resources protection and rational development and utilization. Table and Figures | Reference | Related Articles | Metrics

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Discussion on the Compilation of a New Round of Provincial Forest Land Protection and Utilization Planning—A Case Study of Guizhou Province GAN Guichun, WANG Shaojie, XI Qin, XU Dengping FOREST RESOURCES WANAGEMENT    2022, 0 (6): 14-18.   DOI: 10.13466/j.cnki.lyzygl.2022.06.003 Abstract （291）   HTML （29）    PDF （907KB）（138）       Knowledge map    Save The characteristics of forest land protection and utilization planning were summarized.Based on the new round of forest protection planning in Guizhou Province,this paper analyzed the issues such as the connection of forest land definition standards,the fusion of basic data sources,and the positioning of the planning development blueprint under the land space planning system.In order to link up and coordinate the land space planning,a new round of mechanisms and strategies such as the classification and coordination of provincial forest land protection and utilization planning,the scientific integration of linkage verification,and the conduction and guidance of spatial layout were proposed. Reference | Related Articles | Metrics

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FOREST RESOURCES WANAGEMENT    Accepted: 10 December 2022

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Application Evaluation of BJ3 Satellite Data in Remote Sensing Monitoring of Pine Wilt Disease QIN Lin, MENG Xianjin, ZHANG Shuihua, XUE Yadong, LIU Xinke, Xing Peng FOREST RESOURCES WANAGEMENT    2022, 0 (4): 126-133.   DOI: 10.13466/j.cnki.lyzygl.2022.04.016 Abstract （253）   HTML （9）    PDF （12623KB）（47）       Knowledge map    Save BJ3N is an international leading high-resolution optical remote sensing satellite with independent intellectual property rights of China.The first two satellites were successfully launched in 2021.In order to better understand the application performance of BJ3N,this paper used the relevant image data of BJ3N in Shaoguan City,Guangdong Province to carry out remote sensing monitoring of pine wilt disease,and the application evaluation in image fusion,index calculation,information extraction and other aspects.The results showed that BJ3N data could greatly improve the difference between healthy pines and discolored pines through PANSHARP fusion method and NGRDI index calculation,and effectively enhance the identification effect of discolored pine;the precision rate of intelligently extracting discolored pine through deep learning was 95.8%.,and the recall rate was 88.3%,which met the work needs of remote sensing monitoring of pine wilt disease,and was conducive to the accurate monitoring and prevention of pine wilt disease. Table and Figures | Reference | Related Articles | Metrics

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Discussion on the Construction of National Forest and Grassland Fire Prevention Support System ZOU Quancheng, LU Yuan, GUAN Zhen, PENG Lingli, CHAO Bixiao, BIAN Fei, CHEN Mengdi, MU Xiaowei, YAN Ping FOREST RESOURCES WANAGEMENT    2022, 0 (4): 1-7.   DOI: 10.13466/j.cnki.lyzygl.2022.04.001 Abstract （248）   HTML （22）    PDF （1212KB）（85）       Knowledge map    Save Forest and grassland fire is listed by the United Nations as one of the eight natural disasters in the world,which not only severely damages forest resources and ecological environment,but also causes great harm to people's lives,property and public safety.China has a vast territory,and the task of forest and grassland fire prevention and control is arduous.Fire prevention has always been the top priority of forestry and prataculture.After the reform of the government institutions,National Forestry and Grassland Administration is mainly responsible for forest and grassland fire prevention,carrying out fire prevention patrols,fire source management,daily inspection,publicity and education,construction of fire prevention facilities,and organizing local forestry and grassland departments to deal with early fires.The major project construction plan for ecological protection and restoration support system is one of the nine special plans in the overall plan for the national major ecological system protection and restoration major project,clarifies that in enhancing the protection capacity of important ecological resources such as forests and grasslands.It is necessary to carry out the construction of forest and grassland fire prevention and extinguishment support systems,which provides a fundamental basis for forest and grassland fire prevention in the new era.By understanding and grasping the current situation of forest and grassland fire prevention work,this paper proposed thoughts on the construction of forest and grass fire prevention system,strengthening the early fire situation and improving the guarantee ability in the new era from the perspectives of climate,forest conditions,social conditions,and from the responsibility system,capacity building and other multi-scale.The system construction ideas provided a references for promoting the high-quality development of forest and grassland fire prevention work. Table and Figures | Reference | Related Articles | Metrics

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Design and Application of Forest and Grassland Intelligent Patrol Management System WANG Shuai, ZHENG Hong, LU Nan, LI Hui, PENG Jiangui, DONG Yawen FOREST RESOURCES WANAGEMENT    2022, 0 (6): 145-150.   DOI: 10.13466/j.cnki.lyzygl.2022.06.022 Abstract （232）   HTML （18）    PDF （1640KB）（72）       Knowledge map    Save Aiming at the challenges existing in the process of intelligent development of forest and grassland patrol management system,on the basis of the existing patrol management system,a simple,practical,effective and optimized forest and grassland intelligent patrol management system was designed by applying the technical means of forest and grassland grid management,patrol task management,spatio-temporal data analysis and system sharing service.The system is helpful to improve the efficiency of patrols,reduce the burden of grassroots,standardize patrol work,mobilize the participation of member units,and realize grid-based,real-time,and intelligent decision-making management,in order to accelerate the construction of ecological civilization,promote the high-quality development of forest and grassland undertakings. Table and Figures | Reference | Related Articles | Metrics

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Dynamic Change and Influencing Factors of Vegetation Cover over the Past 30 years in the Wutai Mountain Area REN Tianchen, CHEN Junfeng, LIU Nan FOREST RESOURCES WANAGEMENT    2022, 0 (4): 89-99.   DOI: 10.13466/j.cnki.lyzygl.2022.04.012 Abstract （229）   HTML （9）    PDF （8599KB）（48）       Knowledge map    Save Based on 25 Landsat remote sensing data sources from 1991 to 2020,the temporal and spatial characteristics of vegetation coverage and its influencing factors in Wutai Mountain were analyzed by binary pixel model,wavelet analysis and partial correlation analysis.The results showed that the FVC values in Wutai Mountain area showed an increasing trend on the whole,in which the mean value of FVC in Wutai County was the highest,and the FVC growth rate in Yuanping City was the highest.There were three main change cycles of 9,12,21 years to control the change of FVC in the whole time domain.The vegetation cover in the study area showed a spatial distribution pattern of "low in the west and high in the east",and the improved area of vegetation cover was much larger than the degraded area.The CV values of Wutai County showed a large negative deviation phenomenon when the altitude was lower than 2 400m,and a large positive deviation phenomenon when the altitude was higher than 2 400m.The FVC values of Fanshi County showed an order as follows:shade slope>sunny slope>half shade slope>half sunny slope;The peak values of FVC in each slope direction of Dai County and Yuanping City appeared in the altitude range of 1 600~2 000m.The negative deviation of CV values in Wutai County,Dai County and Yuanping City increased with the increase of slope.From 1980 to 2015,the mean value of partial correlation coefficient between FVC value and temperature was 0.14,and that between FVC value and precipitation was 0.05.In Wutai Mountain area,the area of forest land and construction land increased,while the area of cultivated land and grassland decreased to varying degrees from 1980 to 2015,and there were vegetation decline problems in human-active areas such as mining areas and scenic spots. Table and Figures | Reference | Related Articles | Metrics

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Thoughts on the Path of Implementing Afforestation Space Based on Territorial Spatial Planning ZHAO Hui, SHEN Jiaye, CHEN Xinyun, LI Liwei FOREST RESOURCES WANAGEMENT    2022, 0 (6): 26-29.   DOI: 10.13466/j.cnki.lyzygl.2022.06.005 Abstract （225）   HTML （23）    PDF （890KB）（114）       Knowledge map    Save The implementation of afforestation space based on territorial spatial planning is an effective way to systematically solve the conflict between afforestation land and other types of planning,and also an important basis for scientifically promote afforestation and implement fine management of afforestation.By analyzing the problems existing in the past afforestation planning,according to the requirements of constructing a unified territorial spatial planning system,this paper discussed the path of implementing afforestation space based on land and space planning to scientifically promote land greening. Reference | Related Articles | Metrics

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Reflection on the Classification and Protection of Urban Ancient and Valuable Trees ZHENG Kun, LUO Tingwen, XU Zhibo FOREST RESOURCES WANAGEMENT    2022, 0 (3): 31-35.   DOI: 10.13466/j.cnki.lyzygl.2022.03.005 Abstract （211）   HTML （15）    PDF （980KB）（94）       Knowledge map    Save With the increasing frequency of urban construction activities and the increasing shortage of urban space,the living space,growth quality and value inheritance of urban ancient and valuable trees are facing severe challenges,and the difficulty and pressure of protection are increasing day by day.Based on the status quo of the classification and management of ancient and valuable trees,this paper sorted out the incompatibility of "more prominent contradictions in space use and higher demand for refined management" faced by the protection of urban ancient and valuable trees.This paper proposed two protection considerations,namely "orderly protection based on classification characteristics,and partition management and control based on spatial scenarios",in order to achieve better development of ancient and valuable tree resources protection and urban construction. Table and Figures | Reference | Related Articles | Metrics

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Evaluation and the Improving Paths of Ecological Security of the Qinghai-Tibet Plateau JIAN Ninghong, CHEN Yaru, JIANG Xuemei FOREST RESOURCES WANAGEMENT    2022, 0 (6): 7-13.   DOI: 10.13466/j.cnki.lyzygl.2022.06.002 Abstract （209）   HTML （24）    PDF （951KB）（66）       Knowledge map    Save By constructing the evaluation indicator system and evaluation method of ecological security,the ecological security index,state and pressure indicators of forest,grassland,wetland,snow area and desert ecosystems of the Qinghai-Tibet Plateau from 2015 to 2021 were calculated.The results showed that the ecological security level of the Qinghai-Tibet Plateau was between 0.6 and 0.8,and the ecological security index of Tibet was higher than that of Qinghai.Based on this,the paths to improve the ecological security of the forest,grassland,wetland,snow area and desert ecosystems on the Qinghai-Tibet Plateau were put forward,also the strategy to ensure the ecological security of the Qinghai-Tibet Plateau was pointed out. Table and Figures | Reference | Related Articles | Metrics

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Influence of Environmental Education on Tourist Environmental Behavior in Zhalong Nature Reserve JIANG Yujing, SONG Hongwei, LI Yingyu, LI Fayang, CHENG Kun, ZOU Hongfei FOREST RESOURCES WANAGEMENT    2022, 0 (3): 42-47.   DOI: 10.13466/j.cnki.lyzygl.2022.03.007 Abstract （206）   HTML （8）    PDF （1039KB）（62）       Knowledge map    Save A questionnaire survey on environmental knowledge,environmental attitude,and environmental behavior intention was conducted among 362 tourists in Zhalong National Nature Reserve,Heilongjiang Province.The results showed that environmental knowledge had a positive impact on both environmental attitude and behavior intention of tourists,and environmental attitude also had a positive impact on the environmental behavior intention of tourists;The publichad higher awareness level of reserve knowledge and lower understanding degree of wetland and crane knowledge in the public cognition of environmental knowledge;There was still much room for improvement in the reserve environmental education for visitors.The optimization measures were proposed for addressing the issue of environmental education system in Zhalong Nature Reserve. Table and Figures | Reference | Related Articles | Metrics

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Estimation of Forest Volume Based on Multi-Scale Remote Sensing Features of GF-1 HUANG Bingqian, YUE Cairong, ZHU Bodong FOREST RESOURCES WANAGEMENT    2022, 0 (3): 54-59.   DOI: 10.13466/j.cnki.lyzygl.2022.03.009 Abstract （205）   HTML （5）    PDF （2273KB）（57）       Knowledge map    Save Based on spectral information,vegetation index and texture characteristics extracted from GF-1 remote sensing data in Guanshanhu,Guizhou Province,combined with the measured masson pine plot data,multiple stepwise regression and random forest algorithm were used to construct forest stock estimation models with different windows of remote sensing features.The results indicated that:the optimal windows of multiple stepwise regression and random forest estimation models were both 13×13.When feature variables were extracted as DI2,B3,EN2,SM2,CO3,and the accumulation estimation model was established with the optimal window,the fitting effect of random forest model was better than that of multiple stepwise regression model.According to the resolution of remote sensing image,selecting suitable window to extract characteristic variables can further improve the modeling accuracy of forest stock estimation. Table and Figures | Reference | Related Articles | Metrics

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A Study on Integration of Forest Stock Data at Different Levels in Forest Inventory and Monitoring ZENG Weisheng, YANG Xueyun, SUN Xiangnan, LIU Qiangyi, ZHANG Yuchao FOREST RESOURCES WANAGEMENT    2022, 0 (4): 13-19.   DOI: 10.13466/j.cnki.lyzygl.2022.04.003 Abstract （203）   HTML （12）    PDF （985KB）（116）       Knowledge map    Save It is necessary to conduct national and local integrated forest resources inventory and monitoring,and implement decomposition of provincial forest stock data to prefecture,county,and township level,and even every forest stand polygon,for promoting the supervision and assessment of forest chief system at all levels.Based on the data of forest resources inventory and monitoring in recent years in Beijing,the procedure for implementing decomposition of forest stock data into all stand polygons was presented,where the amount of municipal forest stock was taken as the total for control,and forest volume prediction model and simultaneous models of three forest stocks (volume stock,biomass stock and carbon stock)were applied.Given the data of forest resources planning and designing inventory for reference,the joint estimation method could be adopted to adjust the data of prefecture and county level appropriately,while the errors of different data need to be considered as a whole.Through the establishment of forest volume prediction model and simultaneous models of three forest stocks in Beijing,the forest volume,biomass and carbon storage of Beijing in 2021 were decomposed to district,and township level and every forest stand polygon,realizing the integration of stock data at municipality,district and township level.It is showed that the method of applying modeling technology to decompose three forest stocks into forest stand polygons presented in this study is feasible in practice. Table and Figures | Reference | Related Articles | Metrics

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Analysis on the Changing Tendency of Carbon Sequestration and Carbon Density of Natural Forests in Yunnan Province HU Zhongyu, SU Jianlan, LONG Qin, LI Maomei FOREST RESOURCES WANAGEMENT    2022, 0 (4): 45-53.   DOI: 10.13466/j.cnki.lyzygl.2022.04.007 Abstract （199）   HTML （4）    PDF （1130KB）（57）       Knowledge map    Save Based on the forest resources inventory data of eight times (1977-2018),the biomass expansion factor was used to analyze the carbon sequestration and carbon density of natural forests in Yunnan Province.The results showed that:1)The carbon sequestration of natural forests in Yunnan Province increased from 450.886 million tons in the second inventory to 810.151 million tons in the ninth inventory,with a net increase of 359.265 million tons and an annual growth rate of 1.64%;2)The carbon density of natural forest showed a "rising-falling-rising"trend,carbon density tested in the ninth inventory was 55.79t/hm2;3)In the seventh to ninth inventory,the total amount and increment of carbon sequestration in middle-age forest were the highest,and the order of carbon density in natural forest in the third inventory was overmature forest>mature forest>near mature forest>middle-age forest>young forest,the order of carbon sequestration of different forest species was shelterbelt forest>timber forest>special forest>fuel forest,and the order of carbon density was special forest>shelterbelt forest>timber forest>fuel forest;4)Among the different dominant tree species,Quercus,broadleaves mixed forest,Pinus yunnanensis,mixed coniferous and deciduous forests,other soft wood and Abies fabri were the main contributors to the carbon sequestration of natural forests in Yunnan Province,the order of carbon sequestration increment of different dominant tree species was:broadleaves mixed forest>mixed coniferous and deciduous forests>Pinus yunnanensis>mixed coniferous>Abies fabri,and the estimated carbon density of Tsuga chinensis, Abies fabri,Picea asperata was quite high,with sound growth quality. Table and Figures | Reference | Related Articles | Metrics

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Effects of Drought Stress on Seed Germination and Seedling Growth of Pinus sylvestris var.mongolica from Different Introduction Regions ZHANG Risheng, WANG Dongli, WANG Cuiping, CHI Linlin FOREST RESOURCES WANAGEMENT    2022, 0 (3): 60-66.   DOI: 10.13466/j.cnki.lyzygl.2022.03.010 Abstract （193）   HTML （2）    PDF （1347KB）（39）       Knowledge map    Save In order to understand the drought resistance of Pinus sylvestris var.mongolica seeds germination and seedling growth,the seeds of P.sylvestris from Zhangwu County,Weichang County,Duolun County,Youyu County,Datong County were collected as study materials,and polyethylene glycol (PEG6000) solution was used to simulate different drought stress treatments.The effects of drought stress on seed germination and seedling growth in these regions were studied and the results showed that the seed germination and seedling growth of P.sylvestris from different introduction regions responded differently to drought stress.The seeds of P.sylvestris from Youyu County adapted to germinate under drought level with a water potential gradient of -0.177 Mpa;seeds from Zhangwu County,Duolun County and Weichang County could germinate under drought level with a water potential gradient of -0.735 Mpa.Except the seeds of P.sylvestris from Datong County,the stronger the drought stress,the slower the germination in other introduction regions.Seedlings of P.sylvestris from Weichang County did not grow well under drought stress.Except Weichang County,the radicle length of seedlings in other introduction regions increased under drought stress compared with CK treatment,and the low drought stress could promote,but high drought stress could inhibit the diameter of seedling embryo axis with the increase of drought stress.According to the analysis,the drought resistance of P.sylvestris seeds in the germination stage from strong to weak was as follows: Datong County>Zhangwu County>Duolun County>Youyu County>Weichang County.Within a certain range,the seeds of P.sylvestris adapted to local environmental conditions,with the drought resistance of the seeds of P.Sylvestris becoming stronger as the region changing to dryer. Table and Figures | Reference | Related Articles | Metrics

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Study on the Optimization and Selection of Cunninghamia lanceolata Standing Volume Model in Guangxi HUANG Xiaofa, ZHANG Wei, CEN Juyan, WU Guoxin, HUANG Shuying FOREST RESOURCES WANAGEMENT    2022, 0 (6): 61-67.   DOI: 10.13466/j.cnki.lyzygl.2022.06.010 Abstract （193）   HTML （21）    PDF （1157KB）（46）       Knowledge map    Save In order to provide accurate model for the forest timber volume estimation,using the data of 245 Cunninghamia lanceolata trees obtained on the standard sampling sites by the forestry table compilation work,both one variable and binary model,as well as multiple variables model based on diameter at breast height (DBH),tree height (H) and crown width (Cw) as independent variables were optimized and constructed.The 11 types of curve model were fitted firstly with one independent variable.And then binary model was established using power function.In the end,the DBH-H-Cw multiple independent variables volume model was established by nonlinear regression estimation method,which was regarded as the best model for the fitted and tested parameters.The results showed that: 1) The power function was regarded as the best model among the 11 types of curve model.2) As far as the determinant coefficient and significant test level were concerned,multiple independent variables model was superior to two independent variables model,and then which was superior to one variable model.The most optimized multiple independent variables model combined of DBH,H and Cw had the determinant coefficient of 0.988,the contrast error of 0.087%,the total error of 0.57%,and the prediction accuracy of 99.40%.3) The most optimized model can drag the maximum loading information of the data obtained from forest timber structure,and provide measurement basis for highly accurate estimation method to the forest volume. Table and Figures | Reference | Related Articles | Metrics