基于FVS的北京地区侧柏人工林单木模型的优化  

Optimization of Individual-tree Model for Plantations of Platycladus orientalis in Beijing Based on Forest Vegetation Simulator

作　　者：马丰丰[1,2] 彭湃[2] 段劼 贾黎明[1,3] 张灿明 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [2]湖南省林业科学院,湖南长沙410004 [3]北京林业大学国家能源非粮生物质原料研发中心,北京100083 [4]湖南省水资源研究和利用合作中心,湖南长沙410013

出　　处：《西北林学院学报》2017年第6期150-156,共7页Journal of Northwest Forestry University

基　　金：中央高校基本科研业务费专项资金项目(2017ZY21);国家林业局"948"引进项目(2005-4-02);国家林业局林业科技成果推广项目(2011-44)

摘　　要：侧柏(Platycladus orientalis)人工林面积约占北京市森林总面积的25.96%,是北京山区造林的主要树种之一,但存在密度过大、树木生长过慢、树木生长分化严重等问题。基于美国FVS(forest vegetation simulator)系统,通过多元线性回归、非线性回归法构建和优化侧柏直径生长量模型、树高生长量模型和材积计算模型,来模拟侧柏人工林的生长过程,为科学经营侧柏人工林提供依据。检验结果表明,优化的3个模型拟合效果和预估效果良好。Platycladus orientalis is one of the important afforesting tree species in Beijing mountainous are a,aceounting for about 25. 96% of the total area of plantations in Beijing. However, some problems oc- curred in P. orientalis plantations,such as excessive density,and slow growth rate,and serious differentia tion during tree growth. In this paper,based on the forest vegetation simulator （FVS） system of America, the tree diameter growth model, height growth model and volume computation model were constructed and optimized by multiple linear and non-linear regression analysis. The models established could simulate the growth of P. orientalis plantation to provide a basis for its scientific management. The examination results indicated that the three optimized models had good fitting and expected results.

关 键 词：侧柏 单木模型 优化 森林植被模拟器 北京 

分 类 号：S791.38[农业科学—林木遗传育种]