成果/Result

Modeling and estimating aboveground biomass of Dacrydium pierrei in China using machine learning with climate change被引量：30收藏 分享

作者：Wu, Chunyan[1,2] Chen, Yongfu[1] Peng, Changhui[2,3] Li, Zhaochen[4] Hong, Xiaojiang[5]

机构：Chinese Acad Forestry;Univ Quebec Montreal;Northwest A&F Univ;Asia Pacific Network Sustainable Forest Managemen;Hainan Bawangling Natl Nat Reserve

来源：JOURNAL OF ENVIRONMENTAL MANAGEMENT  2019

关键词：Aboveground biomass   Climate scenarios   Female   Forest regeneration   Male   Rare and endangered tree species  

Effects of vegetation restoration on soil nutrients, plant diversity, and its spatiotemporal heterogeneity in adesert-oasisecotone被引量：29收藏 分享

作者：Wu, Chunyan[1,2,3] Deng, Lei[4,5] Huang, Chunbo[6] Chen, Yongfu[3] Peng, Changhui[4]

机构：Chinese Acad Forestry;Chinese Acad Forestry;Chinese Acad Forestry;Univ Quebec Montreal;Northwest A&F Univ

来源：LAND DEGRADATION & DEVELOPMENT  2021

关键词：Chronosequence   nitrogen   plant diversity   spatial heterogeneity   vegetation restoration  

Estimating crown width in degraded forest: A two-level nonlinear mixed-effects crown width model for Dacrydium pierrei and Podocarpus imbricatus in tropical China被引量：23收藏 分享

作者：Chen, Qiao[1,5] Duan, Guangshuang[2] Liu, Qingwang[1,4] Ye, Qiaolin[3] Sharma, Ram P.[4]

机构：Chinese Acad Forestry;Xinyang Normal Univ;Nanjing Forestry Univ;Tribhuwan Univ;NFGA

来源：FOREST ECOLOGY AND MANAGEMENT  2021

关键词：Dummy variable modeling   Empirical best linear unbiased prediction   Heteroscedasticity   Random effects   Response calibration   Variance function  

Variation patterns of plant composition/diversity in Dacrydium pectinatum communities and their driving factors in a biodiversity hotspot on Hainan Island, China被引量：20收藏 分享

作者：Liu, Haodong[1] Chen, Qiao[1] Liu, Xiao[2,3] Xu, Zhiyang[4] Dai, Yunchuan[5]

机构：Chinese Acad Forestry;Chinese Acad Sci;Univ Chinese Acad Sci;East China Inventory & Planning Inst Natl Forestr;Chinese Acad Forestry

来源：GLOBAL ECOLOGY AND CONSERVATION  2020

关键词：Tropical mountain forests   Plant diversity   Endangered species   Dacrydium pectinatum   Hainan island  

Evaluating soil nutrients of Dacrydium pectinatum in China using machine learning techniques被引量：18收藏 分享

作者：Wu, Chunyan[1,2] Chen, Yongfu[2] Hong, Xiaojiang[3] Liu, Zelin[4] Peng, Changhui[4]

机构：Chinese Acad Forestry;Chinese Acad Forestry;Hainan Bawangling Natl Nat Reserve;Univ Quebec Montreal

来源：FOREST ECOSYSTEMS  2020

关键词：Support vector machine   KNNSVM   Generalized regression neural network   Nutrient grade   Rare and endangered tree species  

Comparison of Modeling Algorithms for Forest Canopy Structures Based on UAV-LiDAR: A Case Study in Tropical China被引量：16收藏 分享

作者：Peng, Xi[1,2,3] Zhao, Anjiu[2] Chen, Yongfu[1,3] Chen, Qiao[1,3] Liu, Haodong[1,3]

机构：Chinese Acad Forestry;Sichuan Agr Univ;Natl Forestry & Grassland Adm;Southwest Forestry Univ

来源：FORESTS  2020

关键词：tropical forests   vertical structure   forest attributes   regression model   recursive feature elimination  

Tree Height Measurements in Degraded Tropical Forests Based on UAV-LiDAR Data of Different Point Cloud Densities: A Case Study on Dacrydium pierrei in China被引量：12收藏 分享

作者：Peng, Xi[1,2,3] Zhao, Anjiu[2] Chen, Yongfu[1,3] Chen, Qiao[1,3] Liu, Haodong[1,3]

机构：Chinese Acad Forestry;Sichuan Agr Univ;Natl Forestry & Grassland Adm

来源：FORESTS  2021

关键词：degraded tropical forests   tree height   UAV-LiDAR   point cloud density   Dacrydium pierrei  

Effects of biotic/abiotic factors on the seedling regeneration of Dacrydium pectinatum formations in tropical montane forests on Hainan Island, China被引量：7收藏 分享

作者：Liu, Haodong[1,2] Chen, Qiao[1] Chen, Yongfu[1] Xu, Zhiyang[3] Dai, Yunchuan[4]

机构：Chinese Acad Forestry;NFGA;East China Inventory & Planning Inst Natl Forestr;Chinese Acad Forestry;Sichuan Agr Univ

来源：GLOBAL ECOLOGY AND CONSERVATION  2020

关键词：Dacrydium pectinatum   Natural regeneration   Niche partitioning   Negative density dependence   Hainan island  

Modelling of the biodiversity of tropical forests in China based on unmanned aerial vehicle multispectral and light detection and ranging data被引量：6收藏 分享

作者：Peng, Xi[1,2,3] Chen, Zhichao[2] Chen, Yongfu[1,3] Chen, Qiao[1,3] Liu, Haodong[1,3]

机构：Chinese Acad Forestry;Sichuan Agr Univ;Natl Forestry & Grassland Adm;Southwest Forestry Univ

来源：INTERNATIONAL JOURNAL OF REMOTE SENSING  2021

关键词：Aircraft detection - Antennas - Biodiversity - Conservation - Forecasting - Forestry - Learning algorithms - Light weight vehicles - Machine learning - Remote sensing - Textures - Tropics - Turing machines - Unmanned aerial vehicles (UAV)  

Identifying the patterns of changes in alpha- and beta-diversity across Dacrydium pectinatum communities in Hainan Island, China被引量：6收藏 分享

作者：Liu, Haodong[1,2] Liu, Hua[1,2] Chen, Yongfu[1,2] Xu, Zhiyang[2,3] Dai, Yunchuan[4]

机构：Chinese Acad Forestry;NFGA;Natl Forestry & Grassland Adm;Chinese Acad Forestry

来源：ECOLOGY AND EVOLUTION  2021

关键词：biodiversity hotspots   coexistence   community assembly   habitat filtering   phylogenetic diversity  

Effects of allelopathy and availability of nutrients and water resources on the survival and growth of plant species in a natural Dacrydium forest被引量：5收藏 分享

作者：Wu, Chunyan[1,2] Chen, Yongfu[2] Grenier-Heon, David[3]

机构：Chinese Acad Forestry;Chinese Acad Forestry;Univ Quebec Montreal

来源：CANADIAN JOURNAL OF FOREST RESEARCH  2022

关键词：aqueous extracts   nutrient irrigation   resource availability   survival rate   growth rate   rare and endangered species  

A Method to Identify Dacrydium pierrei Hickel Using Unmanned aerial Vehicle Multi-source Remote Sensing Data in a Chinese Tropical Rainforest被引量：2收藏 分享

作者：Peng, Xi[1,2,4] Liu, Haodong[1,4] Chen, Yongfu[1,4] Chen, Qiao[1,4] Wang, Juan[1,3,4]

机构：Chinese Acad Forestry;Sichuan Aricultural Univ;Southwest Forestry Univ;NFGA

来源：JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING  2022

关键词：Unmanned aerial vehicles (UAV)   Tree species identification   Feature selection   Random forest   Multi-source remote sensing data   Chinese tropical rainforest  

Spatial Distribution Patterns of Herbaceous Vegetation Diversity and Environmental Drivers in the Subalpine Ecosystem of Anyemaqen Mountains, Qinghai Province, China被引量：0收藏 分享

作者：Dong, Zihan[1,2] Liu, Haodong[3] Liu, Hua[1] Chen, Yongfu[2] Fu, Xinru[2]

机构：Anhui Agr Univ;Chinese Acad Forestry;China Aero Geophys Survey & Remote Sensing Ctr Nat;Forestry & Prairie Stn Golog Tibetan Autonomous Pr;Tibet Agr & Anim Husb Univ

来源：DIVERSITY-BASEL  2024

关键词：Anyemaqen Mountains   biodiversity   environmental drivers   herbaceous vegetation   subalpine ecosystems   Qinghai-Tibet Plateau  

SOIL SEED BANK CHARACTERISTICS UNDER AND OUTSIDE CANOPY OF DACRYDIUM LAMB. IN CHINA被引量：0收藏 分享

作者：Wu, Chunyan[1,2] Chen, Yongfu[1] Hong, Xiaojiang[1,3]

机构：Chinese Acad Forestry;Chinese Acad Forestry;Hainan Bawangling Natl Nat Reserve

来源：BANGLADESH JOURNAL OF BOTANY  2019

关键词：Seed density   Canopy   Geostatistics   Spatiotemporal pattern   DBH  

EFFECTS OF SOIL NUTRITION AND WATER CONTENT ON SEEDLING GROWTH OF DACRYDIUM PIERREI HICKEL IN CHINA被引量：0收藏 分享

作者：Wu, Chunyan[1] Chen, Yongfu[1,2] Ma, Zaiyang[1,3] Hong, Xiaojiang[1,4]

机构：Chinese Acad Forestry;Chinese Acad Forestry;Nanjing Normal Univ;Hainan Bawangling Nat Reserve

来源：BANGLADESH JOURNAL OF BOTANY  2020

关键词：Soil nutrition   Seedling height   Density   Ground diameter  

A classifier-combined method based on D-S evidence theory for the land cover classification of the Tibetan Plateau被引量：0收藏 分享

作者：Hao, Shuang[1] Chen, Yongfu[2] Hu, Bo[2] Cui, Yuhuan[1]

机构：Anhui Agr Univ;Chinese Acad Forestry

来源：APL BIOENGINEERING  2021

关键词：Tibetan Plateau   High altitude   Evidence theory   Landsat OLI   Land cover