成果/Result
- Hyperion高光谱数据森林郁闭度定量估测研究被引量：70收藏
- 作者：谭炳香[1] 李增元[1] 陈尔学[1] 庞勇[1] 雷渊才[1]
- 机构：中国林业科学研究院资源信息研究所
- 来源：《北京林业大学学报》 2006
- 关键词：高光谱遥感 森林郁闭度 Hyperion PCA
- 摘要：该文探讨和评价了利用星载EO-1 Hyperion高光谱遥感数据定量估测森林郁闭度的能力.高光谱数据光谱特征空间降维采用两种方式,一种是光谱特征选择的波段选择法(BS),另一种是光谱特征提取的主成分变换法(PCA).从森...
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- Comparison of seemingly unrelated regressions with error-in-variable models for developing a system of nonlinear additive biomass equations被引量：48收藏
- 作者：Fu, Liyong[1] Lei, Yuancai[1] Wang, Guangxing[2,3] Bi, Huiquan[4] Tang, Shouzheng[1]
- 机构：Chinese Acad Forestry;Cent South Univ Forestry & Technol;So Illinois Univ;New South Wales Dept Ind & Investment;Xinyang Normal Univ
- 来源：TREES-STRUCTURE AND FUNCTION 2016
- 关键词：Additivity Nonlinear error-in-variable models Nonlinear seemingly unrelated regression Tree biomass Pinus massoniana Lamb
- A Hybrid Approach of Combining Random Forest with Texture Analysis and VDVI for Desert Vegetation Mapping Based on UAV RGB Data被引量：45收藏
- 作者：Zhou, Huoyan[1,2] Fu, Liyong[2] Sharma, Ram P.[3] Lei, Yuancai[2] Guo, Jinping[1]
- 机构：Shanxi Agr Univ;Chinese Acad Forestry;Tribhuwan Univ
- 来源：REMOTE SENSING 2021
- 关键词：RF Maximum likelihood classification desertification
- Tree mortality in response to climate change induced drought across BEIjing, China被引量：39收藏
- 作者：Zhang, Xiongqing[1,2] Lei, Yuancai[2] Pang, Yong[2] Liu, Xianzhao[2] Wang, Jinzeng[3]
- 机构：Chinese Acad Forestry;Chinese Acad Forestry;Beijing Forestry Survey & Design Inst
- 来源：CLIMATIC CHANGE 2014
- 关键词：Drought - Ecosystems - Forestry - Population statistics
- Predicting tree recruitment with negative binomial mixture models被引量：37收藏
- 作者：Zhang, Xiongqing[1] Lei, Yuancai[1] Cai, Daoxiong[2] Liu, Fengqiang[3]
- 机构：Chinese Acad Forestry;Chinese Acad Forestry;Swedish Univ Agr Sci
- 来源：FOREST ECOLOGY AND MANAGEMENT 2012
- 关键词：Tree recruitment Negative binomial model Zero-inflated negative binomial model Hurdle negative binomial model Chinese pine
- Evaluation of nonlinear equations for predicting diameter from tree hEIght被引量：35收藏
- 作者：Bi, Huiquan[1,2] Fox, Julian C.[2] Li, Yun[3] Lei, Yuancai[4] Pang, Yong[4]
- 机构：New S Wales Dept Primary Ind;Univ Melbourne;Beijing Forestry Univ;Chinese Acad Forestry
- 来源：CANADIAN JOURNAL OF FOREST RESEARCH 2012
- 关键词：Exponential functions - Forecasting - Forestry - Function evaluation - Laser applications - Petroleum reservoir evaluation - WEIbull distribution
- Mapping the potential distribution suitability of 16 tree species under climate change in northeastern China using Maxent modelling被引量：31收藏
- 作者：Liu, Dan[1] Lei, Xiangdong[1] Gao, Wenqiang[1] Guo, Hong[1] Xie, Yangsheng[1]
- 机构：Chinese Acad Forestry;Acad Forest Inventory & Planning Jilin Prov
- 来源：JOURNAL OF FORESTRY RESEARCH 0
- 关键词：Species distribution model National forest inventory data Natural forest Climate change Site suitability mapping Maxent modelling
- A climate sensitive mixed-effects diameter class mortality model for Prince Rupprecht larch (Larix gmelinii var. principis-rupprechtii) in northern China被引量：22收藏
- 作者：Zhou, Xiao[1,2,3] Chen, Qiao[3] Sharma, Ram P.[4] Wang, Yihao[5] He, Peng[6]
- 机构：Cent South Univ Forestry & Technol;Shanxi Agr Univ;Chinese Acad Forestry;Tribhuwan Univ;Chongqing Normal Univ
- 来源：FOREST ECOLOGY AND MANAGEMENT 2021
- 关键词：Stand mortality Basic model Mixed-effects modeling Climate change Forest management
- Precise Measurement of Stem Diameter by Simulating the Path of Diameter Tape from Terrestrial Laser Scanning Data被引量：21收藏
- 作者：You, Lei[1,2] Tang, Shouzheng[1] Song, Xinyu[3] Lei, Yuancai[1] Zang, Hao[1]
- 机构：Chinese Acad Forestry;Xinyang Normal Univ;Xinyang Normal Univ
- 来源：REMOTE SENSING 2016
- 关键词：stem diameter TLS point cloud curve fitting B-spline
- Forest carbon storage and sink estimates under different management scenarios in China from 2020 to 2100被引量：16收藏
- 作者：Qin, Jianghuan[1,2] Liu, Pengju[1,2] Martin, Adam R.[1,3] Wang, Weifeng[2,4] Lei, Yuancai[1,2]
- 机构：Chinese Acad Forestry;State Forestry & Grassland Adm;Univ Toronto Scarborough;Nanjing Forestry Univ
- 来源：SCIENCE OF THE TOTAL ENVIRONMENT 2024
- 关键词：Chinese forests Carbon sequestration Carbon stocks Forest management Afforestation
- Climate-sensitive diameter distribution models of larch plantations in north and northeast China被引量：14收藏
- 作者：Guo, Hong[1] Lei, Xiangdong[1] You, Lei[2] Zeng, Weisheng[3] Lang, Pumei[1]
- 机构：Chinese Acad Forestry;Xinyang Normal Univ;Natl Forestry & Grassland Adm
- 来源：FOREST ECOLOGY AND MANAGEMENT 2022
- 关键词：WEIbull distribution model Percentile-based parameter recovery method Seemingly unrelated regression Climate change
- A Basal Area Increment-Based Approach of Site Productivity Evaluation for Multi-Aged and Mixed Forests被引量：14收藏
- 作者：Fu, Liyong[1,2] Sharma, Ram P.[3] Zhu, Guangyu[4] Li, Haikui[1] Hong, Lingxia[1]
- 机构：Chinese Acad Forestry;Penn State Univ;Czech Univ Life Sci Prague;Cent South Univ Forestry & Technol;Univ Idaho
- 来源：FORESTS 2017
- 关键词：basal area realized productivity basal area potential productivity mixed forests site quality evaluation
- Improving tree survival prediction with forecast combination and disaggregation被引量：14收藏
- 作者：Zhang, Xiongqing[1] Lei, Yuancai[1] Cao, Quang V.[2] Chen, Xinmei[1] Liu, Xianzhao[1]
- 机构：Chinese Acad Forestry;Louisiana State Univ
- 来源：CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE 2011
- 关键词：Forestry - Plants (botany)
- Uncertainty assessment in aboveground biomass estimation at the regional scale using a new method considering both sampling error and model error被引量：11收藏
- 作者：Fu, Yu[1,2] Lei, Yuancai[2] Zeng, Weisheng[3] Hao, Ruijun[1] Zhang, Guilian[1]
- 机构：Shanghai Acad Landscape Architecture Sci & Planni;Chinese Acad Forestry;State Forestry Adm
- 来源：CANADIAN JOURNAL OF FOREST RESEARCH 2017
- 关键词：aboveground biomass estimation uncertainty assessment Monte Carlo simulation model error sample size for model fitting
- Developing machine learning models with multiple environmental data to predict stand biomass in natural coniferous-broad leaved mixed forests in Jilin Province of China被引量：10收藏
- 作者：He, Xiao[1] Lei, Xiangdong[1] Liu, Di[1] Lei, Yuancai[1]
- 机构：Chinese Acad Forestry
- 来源：COMPUTERS AND ELECTRONICS IN AGRICULTURE 2023
- 关键词：Stand biomass Machine learning Climate and soil variables Variable importance
- Modelling the relationship of tree-level product value with tree characteristics in black spruce被引量：10收藏
- 作者：Zhang, S.Y.[1] Lei, Y.C.[2] Jiang, Z.H.[3]
- 机构：Forintek Canada Corp;Chinese Acad Forestry;Chinese Acad Forestry
- 来源：FORESTRY CHRONICLE 2006
- 关键词：black spruce regression models elasticity analysis product value tree characteristics
- 蒙古栎林分直径WEIbull分布参数估计和预测方法比较被引量：8收藏
- 作者：国红[1] 雷渊才[1]
- 机构：中国林业科学研究院资源信息研究所
- 来源：《林业科学》 2016
- 关键词：WEIbull分布 最大似然估计 参数预测法 参数回收法 百分位法 蒙古栎
- 摘要：【目的】比较WEIbull直径分布参数估计和预测的不同方法在蒙古栎次生林经营中的适用性和精确性,为更好开展蒙古栎林经营提供理论依据和技术参数。【方法】以吉林省157块蒙古栎纯林为研究对象,运用Kolmogorov-Smi...
- 其他来源数据库：万方期刊数据库同方期刊数据库
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- Method of Estimating Degraded Forest Area: Cases from Dominant Tree Species from Guangdong and Tibet in China被引量：7收藏
- 作者：Wu, Biyun[1,2] Meng, Xiang[1,2] Ye, Qiaolin[3] Sharma, Ram P.[4] Duan, Guangshuang[1,2]
- 机构：Chinese Acad Forestry;Natl Forestry & Grassland Adm;Nanjing Forestry Univ;Tribhuwan Univ
- 来源：FORESTS 2020
- 关键词：multi-criteria decision analysis analytic hierarchy process forest degradation index sustainable forest management
- 江西省不同立地等级的马尾松林生物量估计和不确定性度量被引量：5收藏
- 作者：赵菡[1] 雷渊才[1] 符利勇[1]
- 机构：中国林业科学研究院资源信息研究所
- 来源：《林业科学》 2017
- 关键词：立地分级 异速生长模型 生物量估计 不确定性估计 蒙特卡洛模拟
- 摘要：【目的】选择适合的单木地上生物量异速生长模型形式,获得区域尺度马尾松林生物量及其误差在不同立地等级下的估计,为精准估计不同立地质量的森林生物量提供技术支持,进而为森林立地生产力估计提供参考。【方法】在马尾松林3种单木生物...
- 其他来源数据库：万方期刊数据库同方期刊数据库
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- Parameter estimation of two-level nonlinear mixed effects models using first order conditional linearization and the EM algorithm被引量：4收藏
- 作者：Fu, Liyong[1] Wang, Mingliang[2] Lei, Yuancai[1] Tang, Shouzheng[1]
- 机构：Chinese Acad Forestry;Univ Georgia
- 来源：COMPUTATIONAL STATISTICS & DATA ANALYSIS 2014
- 关键词：Cunninghamia lanceolata Expectation-maximization algorithm First order conditional expansion Lindstrom and Bates algorithm Simulated data Two-level nonlinear mixed effects models
- CHINA TYPICAL FOREST ABOVEGROUND BIOMASS ESTIMATION BY FUSION OF MULTI-PLATFORM DATA被引量：2收藏
- 作者：Pang Yong[1] Li Zengyuan[1] Meng Shili[1,2] Lu Hao[1] Jia Wen[1]
- 机构：Chinese Acad Forestry;Beijing Normal Univ
- 来源：2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) 2016
- 关键词：China forest aboveground biomass LiDAR Field-Airborne-Spaceborne (FAS) observation multi-platform
- Uncertainty Analysis of Remote Sensing Estimation of Chinese Fir (Cunninghamia lanceolata) Aboveground Biomass in Southern China被引量：1收藏
- 作者：Hu, Yaopeng[1] Fu, Liyong[1] Qiu, Bo[2] Xie, Dongbo[1] Wu, Zheyuan[1]
- 机构：Chinese Acad Forestry;Southwest Forestry Univ;Guangdong Forestry Survey & Planning Inst
- 来源：FORESTS 2025
- 关键词：estimation models machine learning plot scale uncertainty analysis Chinese fir
- 广东主要乡土阔叶树种含年龄和胸径的单木生物量模型被引量：0收藏
- 作者：薛春泉[1] 徐期瑚[1] 林丽平[1] 何潇[2] 罗勇[1]
- 机构：广东省林业调查规划院;中国林业科学研究院资源信息研究所
- 来源：《林业科学》 2019
- 关键词：立木年龄 生物量模型 哑变量 联立方程组 相容性 起源
- 摘要：【目的】建立樟树、木荷和枫香3个树种以胸径、年龄为自变量的单木地上生物量模型,为精准估计森林生物量和碳储量变化规律提供理论、实践支撑和技术支持。【方法】基于每个树种按10个径阶均匀分配的90株伐倒木数据(3个树种共270...
- 其他来源数据库：万方期刊数据库同方期刊数据库
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- Mapping species-specific aboveground forest biomass for Guangxi using wall-to-wall airborne laser scanning data被引量：0收藏
- 作者：Zhang, Xiaofang[1,2] Tang, Shouzheng[1,2] Fu, Liyong[1,2] Zhang, Huiru[1,2] Sharma, Ram P.[3]
- 机构：Chinese Acad Forestry;Natl Forestry & Grassland Adm;Tribhuvan Univ;Univ British Columbia;Chinese Acad Forestry
- 来源：ECOLOGICAL INDICATORS 2025
- 关键词：Wall-to-wall ALS data Species-specific AGB map High resolution
- Effects of sample size on accuracy and stability of species distribution models: A comparison of GARP and Maxent被引量：0收藏
- 作者：Chen, Xinmei[1] Lei, Yuancai[1]
- 机构： Research Institute of Forest Resources Information Techniques
- 来源：Lecture Notes in Electrical Engineering 2012
- 关键词：Climate change - Forecasting - Genetic algorithms - Predictive analytics - Sampling - Surveys
- 米老排人工林种子雨时空动态特征及其采伐更新设计被引量：0收藏
- 作者：唐继新[1,2,3] 贾宏炎[1] 李武志[1] 雷相东[2] 曾冀[1]
- 机构：中国林业科学研究院热带林业实验中心;中国林业科学研究院资源信息研究所;广西友谊关森林生态系统国家定位观测研究站
- 来源：《林业科学》 2019
- 关键词：米老排人工林 带状皆伐 种子雨 沉水种子 时空动态 分布预测 采伐更新设计
- 摘要：【目的】以带状皆伐后米老排人工林为对象,研究其保留带和皆伐迹地种子雨及沉水种子的时空动态,旨在为米老排人工林更新采伐设计及促进天然更新提供科学依据。【方法】在米老排人工林带状皆伐后,分别在保留带和皆伐迹地内各布设3个固定...
- 其他来源数据库：万方期刊数据库同方期刊数据库
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- STEM TAPER EQUATIONS FOR BETULA ALNOIDES IN SOUTH CHINA被引量：0收藏
- 作者：Tang, C.[1,2] Wang, C.S.[1] Pang, S.J.[3] Zhao, Z.G.[1] Guo, J.J.[1]
- 机构： Research Institute of Tropical Forestry; Agricultural College; Experimental Center of Tropical Forestry; Research Institute of Forest Resource Information Techniques
- 来源：Journal of Tropical Forest Science 2017
- 关键词：Forestry - Hardwoods - Linear regression
- 基于Richards方程的冷杉树高曲线深度神经网络激活函数被引量：0收藏
- 作者：徐奇刚[1,2,3] 雷相东[1,3] 郑宇[2] 胡兴国[4] 雷渊才[1,3]
- 机构：中国林业科学研究院资源信息研究所;国家林业和草原局华东调查规划院;国家林业和草原局森林经营与生长模拟实验室;吉林省汪清林业局
- 来源：《林业科学》 2023
- 关键词：深度神经网络 激活函数 理论生长方程 树高-胸径模型
- 摘要：【目的】提出一个基于理论生长方程(Richards公式)的激活函数,解决神经网络算法在森林生长建模时输出可能不符合生物学规律的问题,为神经网络在森林生长建模方面的应用提供一个新的思路和方法。【方法】以吉林省汪清林业局臭冷...
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- 广东省木荷碳密度及其不确定性估计被引量：0收藏
- 作者：何潇[1] 雷渊才[1] 薛春泉[2] 徐期瑚[2] 李海奎[1]
- 机构：中国林业科学研究院资源信息研究所;广东省林业调查规划院
- 来源：《林业科学》 2019
- 关键词：含碳率 生物量模型 碳密度 不确定性量化 Monte Carlo模拟
- 摘要：【目的】基于实测的广东省木荷地上和地下生物量数据及加权平均含碳率,建立单木地上、地下生物量模型,获得区域尺度木荷碳密度及其估计误差,为其他树种的区域尺度碳汇估计提供参考。【方法】参考广东省木荷分布数据,选择并伐倒90株木...
- 其他来源数据库：万方期刊数据库同方期刊数据库
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- Nonlinear mixed-effects crown width models for individual trees of Chinese fir (Cunninghamia lanceolata) in south-central China被引量：0收藏
- 作者：Fu, Liyong[1] Sun, Hua[2] Sharma, Ram P.[3] Lei, Yuancai[1] Zhang, Huiru[1]
- 机构： Research Institute of Forest Resource Information Techniques; Research Center of Forestry Remote Sensing and Information Engineering; Department of Ecology and Natural Resource Management
- 来源：Forest Ecology and Management 2013
- 关键词：Forestry - Exponential functions - Random processes
