基于竞争指数的杉木林分生长可视化模拟研究  

Visual Simulation of Growth Process in Cunninghamia lanceolata Based on Competition Index

作　　者：张宁[1,2] 张怀清[2] 林辉[1] 蒋娴[2] 

机构地区：[1]中南林业科技大学林业遥感信息工程研究中心,湖南长沙410004 [2]中国林业科学研究院资源信息研究所,北京100091

出　　处：《林业科学研究》2013年第6期692-697,共6页Forest Research

基　　金：国家863计划课题"数字化森林模型与可视化模拟技术研究(2012AA102002)";林业公益性行业科研专项"林分结构与生长模拟技术研究(201104028)";国家自然基金"杉木林分环境与生长交互性建模与可视化模拟(31170590)"

摘　　要：以我国南方速生丰产林——杉木纯林为研究对象,采用改进过的Hegyi的简单竞争指数模型对杉木纯林间的竞争强度进行定量分析,并建立单木生长模型,再通过径阶模型将其应用于全林分,将单木生长模型研究扩展到全林分生长模型研究。同时,通过可视化模拟技术,为更加逼真的恢复和重建林分空间结构提供理论依据。The fast-growing and high-yielding Cunninghamia lanceolata pure stands in south China were used to an- alyze quantitatively the competition intensity among C. lanceolata stands by adopting improved Hegyi＇ s simple com- petition index model, and the individual tree growth model was built. Then the Hegyi＇s simple competition index model was used for whole stand by diameter class model, in order to broaden individual tree stand growth model. Meanwhile, the visual simulation technique could provide a theoretical rebuilding the stand spatial structure more realistically. growth model to whole basis for restoring and

关 键 词：竞争指数 径阶 可视化模拟 杉木林 

分 类 号：S711[农业科学—林学] S791.27