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The Development Experiences of the Flower Industry in the Netherlands and Its Implications for China XIANG Yue, LIU Ping Forest and Grassland Resources Research    2024, 0 (4): 164-170.   DOI: 10.13466/j.cnki.lczyyj.2024.04.018 Abstract （490）   HTML （3）    PDF （1153KB）（1062）       Knowledge map    Save The flower industry,as a burgeoning sector that contributes to China's rural revitalization efforts,plays an important role in promoting economic prosperity,enhancing social well-being,and strengthening the construction of ecological civilization.It is currently at a key turning point,transitioning from high-speed development to high-quality development,while facing major challenges such as an incomplete industrial chain,weak quality supervision,low levels of scientific and technological innovation,and insufficient policy support.The Netherlands,as a global leader in the flower industry,offers advanced development practices and successful experiences that are highly relevant for promoting the sustainable growth of China's flower industry.This paper summarizes the current situation and successful experience of the Netherlands flower industry,and proposes development strategies for China's flower industry.By accelerating the optimization and upgrading of the flower industry,improving the quality management system,strengthening scientific and technological support,and enhancing government support,China's flower industry can achieve high-quality,sustainable development. 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 （1016）   HTML （27）    PDF （2282KB）（6255）       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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Species Diversity and Its Associated Factors of Castanopsis orthacantha Community in Central Yunnan PENG Zexi, LUO Hang, LI Xiaoying, XU Yanhong, YIN Wuyuan, ZHU Hongqin, CHEN Yuqiang, CHEN Xiaoqin FOREST RESOURCES WANAGEMENT    2023, 0 (2): 138-146.   DOI: 10.13466/j.cnki.lyzygl.2023.02.019 Abstract （663）   HTML （9）    PDF （1023KB）（3586）       Knowledge map    Save In order to accurately grasp the species diversity level of Castanopsis orthacantha community and its relationship with related factors in central Yunnan,based on the investigation of typical plots,the Margalef richness index,Pielou evenness index,Shannon-Weiner diversity index and species diversity comprehensive index were used to measure the species diversity level of Castanopsis orthacantha community,and the grey correlation analysis method was used to explore the relationship between species diversity level and site factors,stand factors and forest disturbance intensity.The results showed that:1) The species composition of Castanopsis orthacantha community was rich,involving 75 families,141 genera and 202 species,and the species composition of shrub layer was the most complex.The tree species composition of the arbor layer had the characteristics of typical subtropical evergreen broad-leaved forest.And there were significant differences in species composition and important values in different regions.2) The richness index,diversity index and evenness index of shrub layer (including regeneration layer) were the highest,and the species diversity of Castanopsis orthacantha community was at a medium level.The species diversity of different survey areas in the study area was different.The contribution rate of herb layer and shrub layer (including regeneration layer) to the comprehensive index of community species diversity was the highest.3) There was a strong correlation between species diversity and six factors in three levels of site factors,stand factors and forest disturbance intensity.The order of correlation degree was altitude>forest disturbance intensity>average DBH>aspect>plant density>slope.Through research,the aim is to provide a basis for the restoration and conservation measures of Castanopsis orthacantha community in central Yunnan. Table and Figures | Reference | Related Articles | Metrics

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Characteristics and discussion on protection and management strategies of ancient and notable trees in China JIANG Chunying, SUN Zhichao, YU Shiyong, HOU Chuncai, YANG Xueqing Forest and Grassland Resources Research    2025, 0 (1): 6-16.   DOI: 10.13466/j.cnki.lczyyj.2025.01.002 Abstract （282）   HTML （105）    PDF （1447KB）（594）       Knowledge map    Save To gain an in-depth understanding of the characteristics of ancient and notable tree resources in China,based on the data from the second national census of ancient and notable tree resources,this study analyzes the quantity,types,spatial distribution,growth characteristics,and health status of ancient and notable trees,and explores the multiple challenges faced by current protection management in terms of responsibility awareness,ownership management,ecological protection,and technological application.The results showed that there are a total of 5.0819 million ancient and notable trees in China,including 1.2213 million scattered ancient and notable trees,belonging to 2553 species of 608 genera in 157 families,mainly distributed in Northern China and southern regions.The ownership is mostly collective,with the majority being third-grade ancient trees.The tree height is concentrated between 10-20 m,the chest circumference is concentrated between 100-300 cm,and the crown width is concentrated between 5-20 m.There is a significant correlation between the growth potential of ancient trees and their growth environment.Under the current situation,in order to better protect ancient and notable tree resources,it is necessary to further optimize management strategies,implement graded and classified protection,improve financial support,establish a sound legal and educational system,and promote technological empowerment. Table and Figures | 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 （1113）   HTML （40）    PDF （1498KB）（2532）       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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Information Extraction and Security Risk Assessment of Street Trees Based on Vehicle-Borne LiDAR Data MU Tianbao, WU Linna, ZHANG Haitao, ZHANG Han FOREST RESOURCES WANAGEMENT    2022, 0 (5): 91-98.   DOI: 10.13466/j.cnki.lyzygl.2022.05.012 Abstract （463）   HTML （10）    PDF （6310KB）（2884）       Knowledge map    Save Rapid and accurate acquisition of the structural characteristics and safety risk status of urban street trees based on LiDAR point cloud data is of great significance to assist smart city management.In order to solve the problem that LiDAR point cloud data is difficult to segment regions with unclear morphological characteristics in street tree parameter acquisition,a individual tree extraction method based on circular index of trunk center point was proposed.Firstly,it obtained the sliced point cloud of the trunk layer according to the elevation information,then,segmented the sliced data based on the improved DBSCAN clustering algorithm.Secondly,it identified the trunk through the morphological characteristics of the ground features and obtained the central point,so as to complete the extraction through the circular index method based on the central point.Finally,it combined with the risk matrix method to evaluate the safety risk of the stability and traffic impact of the street trees in the study area.The results showed that the proposed individual tree extraction method could effectively improve the segmentation accuracy of individual trees of street trees in areas with unclear morphological characteristics,and accurately obtain the structural parameter information such as the number,shape and position of street trees;The safety risk assessment found that the stability of most street trees and the risk of traffic impact in the study area werein a level I negligible risk state,but there were some street trees whose stability and risk of traffic impact were level II and level III.These trees were mainly distributed in the area with dense and interlaced roadside trees in the study area.The results can provid corresponding decision support for relevant departments to monitor street trees in a timely and effective manner. 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 （785）   HTML （26）    PDF （4757KB）（3147）       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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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 （6058）   HTML （447）    PDF （1091KB）（4133）       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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Thoughts on the Compilation of New Forest Management Plan of State-Owned Forest Farms—Taking Mulan Weichang State-Owned Forest Farm as an Example CHEN Shaozhi, WU Keyi, HAN Dongyang, ZOU Wentao FOREST RESOURCES WANAGEMENT    2022, 0 (zk1): 32-38.   DOI: 10.13466/j.cnki.lyzygl.2022.S0.005 Abstract （404）   HTML （7）    PDF （1829KB）（414）       Knowledge map    Save State-owned forestry enterprises,state-owned forest farms,forestry management enterprises,forestry cooperatives,family forest farms,etc.are the basic units and subjects of responsibility and rights to carry out sustainable forest management.These main bodies(forest management units) make and implement forest management plans,which is the inevitable requirement to ensure the consistency and sustainability of forest management objectives,and is also the fundamental compliance to adjust objectives and optimize management according to reality.According to the compilation of the forest management plan of GEF new state-owned forest farm in Mulan Forest Farm,Hebei Province,the author summarized the experiences and practices in compiling the case,analyzed the problems and solutions in the compilation process,and put forward some countermeasures and suggestions for compiling the new forest management plan. Table and Figures | Reference | Related Articles | Metrics

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The Impact of Digital Economy on Forestry Green Total Factor Productivity MEI Yuntian, WANG Wenqi, ZOU Quancheng, CHAO Bixiao, CHEN Jiayu, FENG Tianchu, LI Xiaoliang Forest and Grassland Resources Research    2024, 0 (5): 1-10.   DOI: 10.13466/j.cnki.lczyyj.2024.05.001 Abstract （437）   HTML （23）    PDF （926KB）（344）       Knowledge map    Save The integration of digitalization and ecological practices is an important strategic choice for forming new quality productivity in forestry.This article is based on the perspective of achieving the country’s goals of peak carbon dioxide emissions by 2030 and carbon neutrality by 2060,and green development of the forestry industry.Based on panel data from 2011 to 2020 among Chinese provinces,the study assesses the comprehensive impact of the digital economy on Forestry Green Total Factor Productivity(FGTFP)across different regions.Panel regression and threshold effect models were used to analyze the impact and mechanism of the digital economy on FGTFP.The findings indicate a significant enhancement of FGTFP attributable to the digital economy,particularly pronounced in the central and eastern provinces and regions benefiting from robust financial backing for forestry initiatives.Mechanism analysis shows that the digital economy effectively improves FGTFP by promoting regional forestry technology innovation.In the threshold test,the development level of the Internet has a triple threshold.The digital economy has a significant nonlinear impact on improving regional FGTFP through different levels of Internet development.This impact shows a pattern of initial increase followed by a decline in marginal returns.Based on the research results,it is further suggested that the government should actively promote the deep integration of the digital economy and the forestry industry,improve the level of forestry technology innovation,increase financial support for forestry,guide local forestry to carry out digital reform according to local conditions,pay attention to the efficiency of forestry digital element allocation,and improve the synergy level between the digital economy and the green development of forestry. Table and Figures | Reference | Related Articles | Metrics

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Habitat Suitability Assessment of Moose Based on Combined MaxEnt and HSI Model ZENG Haowei, LING Chengxing, ZHANG Jun, LIU Hua, ZHAO Feng, JIN Yue, LIU Shuguang, ZHANG Yutong FOREST RESOURCES WANAGEMENT    2023, 0 (4): 115-122.   DOI: 10.13466/j.cnki.lyzygl.2023.04.014 Abstract （489）   HTML （15）    PDF （3281KB）（2942）       Knowledge map    Save Moose is a national first-class protected animal in China.Studying the habitat quality of moose is a key step to protect moose population.In this paper,taking Heilongjiang Nanwenghe National Natural Reserve as an example,the habitat suitability of moose was evaluated using maximum entropy model(MaxEnt)and habitat suitability index(HSI)model.Moose distribution points data was gathered from unmanned aerial vehicle transect survey,the maximum entropy model was used to get the environmental factor contribution and single environment variable response curve,combined with natural geography of the Reserve,the evaluation model was set up based on the impact of different environmental factors on moose to evaluate the moose habitat suitability of reserve quantitatively.The results showed that altitude(20.3%),slope(11.4%)and distance from river(11.3%)were the main environmental factors affecting the habitat distribution of moose,while slope aspect,slope position and vegetation coverage had less effect on moose habitat.Moose prefer to live in forested area with low altitude,moderate slope,sunny slope,and prefer to live close to river,far away from human disturbance and in areas with high coverage.In the reserve,the area of high suitable habitat for moose is 424.6 km2,accounting for 18.5% of the total area.The area of low suitable habitat is 1 422.9 km2,accounting for 62% of the total area.The area of unsuitable habitat is 447.5 km2,accounting for 19.5% of the total area. Table and Figures | Reference | Related Articles | Metrics

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The Status and Suggestions of Giant Pandas Residing Abroad ZHONG Yi, ZHANG Ling FOREST RESOURCES WANAGEMENT    2014, 0 (3): 11-13.   DOI: 10.13466/j.cnki.lyzygl.2014.03.003 Abstract （609）      PDF （1308KB）（1141）       Knowledge map    Save Since the first long-term collaborative project of giant panda research and conservation was implemented with Japan in 1994,China has exported 38 Giant Pandas to 18 zoos in 13 countries for the same purpose.42 panda cubs were born overseas,32 were alive and 22 cubs were sent back to their hometown China.The 20 years cooperation made great effects in captive breeding,which strengthened the scientific collaboration with foreign countries,but there still existed some points for improvement.This paper reviews the 20 years progress in Giant Panda cooperation,analyzes the present status and exsistent issues and gives some suggestions for the future cooperation. Reference | Related Articles | Metrics

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Main Results of the Fourth Rocky Desertification Survey in Karst Area and Analysis of Rocky Desertification Control Situation NING Xiaobin, WU Xiebao, HUANG Junwei, WU Houjian, LIU Wei, PENG Xi FOREST RESOURCES WANAGEMENT    2023, 0 (3): 9-14.   DOI: 10.13466/j.cnki.lyzygl.2023.03.002 Abstract （1203）   HTML （50）    PDF （972KB）（2394）       Knowledge map    Save The fourth rocky desertification survey in Karst area was based on the result of the third national land survey,while taking 2021 as the base year to comprehensively investigate the condition and change of the rocky desertification land China.This paper briefly introduced the basic situation of the fourth rocky desertification survey,the present situation and dynamic change of rocky desertification land,as well as analyzed the current situation of rocky desertification control,and put forward countermeasures and suggestions.The results showed that,the rocky desertification land area was 7.223 million hm2 by 2021.Compared with 2016,the net decrease of rocky desertification land area was 3.331 million hm2,while the average annual decrease was 0.666 million hm2.The main results indicating that the rocky desertification land in China presents the overall evolution direction of "area decreasing,degree reduction and ecological condition being stable ". Table and Figures | Reference | Related Articles | Metrics

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Spatial Heterogeneity of Specific Leaf Area and Leaf Construction Cost of Quercus liaotungensis Canopy Qin Xinhao FOREST RESOURCES WANAGEMENT    2015, 0 (4): 145-150.   DOI: 10.13466/j.cnki.lyzygl.2015.04.025 Abstract （422）      PDF （1445KB）（528）       Knowledge map    Save Plant functional trait has been a hot topic of ecological research in recent years.Specific leaf area and leaf construction cost are important index factors in the research on harvest and expenditure of resources.The vertical and horizontal differences in the energy transmission and micrometeorological characteristics of forest canopy can lead to a considerable heterogeneity of functional traits.With Quercus liaotungensis,we studied the functional traits and their influence factors of different canopy positions.The results showed that CC on the top is higher than that at the bottom,but it is the other way around to SLA.Except the top and eastward parts,SLA in different canopy positions had significant differences;heat of combustion was the main influence factor for CC and SLA. 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 （708）   HTML （12）    PDF （1037KB）（2909）       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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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 （712）   HTML （36）    PDF （1577KB）（1708）       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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Study on Phenotype and Adaptability Evaluation of Cold-Tolerant Fern in Beijing HE Guoxin FOREST RESOURCES WANAGEMENT    2022, 0 (2): 82-90.   DOI: 10.13466/j.cnki.lyzygl.2022.02.012 Abstract （1426）   HTML （4）    PDF （5738KB）（1456）       Knowledge map    Save The main problems existing in Beijing plain area are as follows:the landscape of uniform tree species is lack of vertical layer especially in ground cover plants,let alone pay attention to species diversity and density,as well as seasonal colors.There are few ground cover species in high canopy forests,and the phenomenon of understory blank is prominent.To enrich the diversity of ground cover plants under forests,10 cold resistant fern varieties were introduced to carry out adaptability research tests such as cold tolerance,negative tolerance and cold tolerance. Four varieties of fern,including Mexicans fern,Banas fern,Japanese color leaf fern and Ostrich fern,suitable for understory planting in Beijing Plain were selected.The evaluation indexes and methods of the adaptability of the introduction and cultivation of cold resistant fern were summarized. The screening and evaluation experiment of cold resistant fern enrich the species of ground cover plants,and provide more choices for high-quality landscape construction of the capital. Table and Figures | Reference | Related Articles | Metrics

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Developing One-variable Individual Tree Biomass Models Based on Wood Density for 34 Tree Species in China ZENG Weisheng FOREST RESOURCES WANAGEMENT    2017, 0 (6): 41-46.   DOI: 10.13466/j.cnki.lyzygl.2017.06.008 Abstract （829）   HTML （9）    PDF （1062KB）（1720）       Knowledge map    Save Forest is the largest carbon bank on land,and assessment of forest carbon sequestration must be based on biomass models.Based on the general biomass model M=0.3pD 7/3 presented in 2012,one variable individual tree aboveground biomass models for all 34 tree species or groups in China were established using the data of wood basic density of all tree species published;and based on the mensuration data of the National Biomass Modeling Program in Continuous Forest Inventory(NBMP-CFI),the aboveground biomass models of 14 tree species(groups)were validated.Additionally,compatible below ground biomass models and root-to-shoot ratio models for two species groups,coniferous and broadleaved,were developed and evaluated.The results showed that average absolute relative errors of above and below-ground biomass estimates from one-variable biomass models developed in this study were less than the allowances 10% and 15%,respectively.The developed biomass models here could be applied to estimate forest biomass on macro levels,and would be an important supplement to the ministerial standards on biomass models which were promulgated and implemented in the past years. Table and Figures | 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 （857）   HTML （21）    PDF （1468KB）（1923）       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

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Species resource diversity and population characteristics of Taxus cuspidata in natural distribution areas ZHU Wancai, PAN Yan, LIU Qifeng, LI Yueqian, WANG Yan Forest and Grassland Resources Research    2025, 0 (1): 137-144.   DOI: 10.13466/j.cnki.lczyyj.2025.01.015 Abstract （183）   HTML （16）    PDF （2463KB）（214）       Knowledge map    Save To promote the protection and population recovery of Taxus cuspidata in Northeast China,we analyzed the diversity and density distribution of its natural distribution areas with field investigation data from Laojieling and Zhangguangcailing forest regions in Heilongjiang Province.The results indicated the following:1)The natural distribution area of Taxus cuspidata is rich in forest and grassland resources,with a total of 678 species of wild plants recorded across 93 families and 312 genera.2)The age structure of Taxus cuspidata in Northeast China exhibits a “spindle shape” characterized by a predominance of medium and large trees,resulting in a stable population.The largest number of individuals is found in Tilia amurensis forests,while the highest frequency of occurrence is in the red pine and spruce forests.3)The natural population of Taxus cuspidata is substantial,demonstrating strong spatial aggregation,which correlates significantly with various ecological factors.The most suitable altitude range for population survival is in 650-750 m,primarily located on mountain slopes.Additionally,the population density increases significantly when the slope is steeper than 10°.4)The study area features two high-density regional centers and several sub-dense regional centers,with a population density reaching up to 21 ind.hm2.Density gradually decreases outward from these high-fitness regions,with the southern part of Heilongjiang Province identified as one of the most suitable natural distribution areas for the species. Table and Figures | Reference | Related Articles | Metrics