杨树人工林生长与收获系统模型构建  

Construction of growth and yield models for poplar plantations

作　　者：任百林[1] 徐锡增[2] 方升佐[2] 

机构地区：[1]南京林业大学理学院,江苏南京210037 [2]南京林业大学林学院,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2014年第5期1-5,共5页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家重点基础研究发展计划(2012CB416904);国家林业公益性行业科研专项项目(201004004011);江苏高校协同创新计划资助项目;江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：基于南方杨树人工林各类试验固定标准地和历年调查收集的临时标准地共213块样地数据,构建了适合我国南方地区杨树人工林生长与收获的模型系统。系统模型集成了林分平均直径与断面积、林分直径分布、树高曲线和削度方程模型,以林分立地质量、林分年龄与林分密度为模型的控制变量,按不同经营强度类型给出了林分蓄积量与出材量收获模型,并开发了具有自主知识产权的系统软件。旁置样地检验表明:应用该杨树人工林生长与收获系统模型可以得到林分蓄积量与出材量的可靠估计,平均相对误差<10%。Based on the data collected from fixed sample plots and investigated from typical sample plots over the years, growth and yield models of poplar plantations in southern area of China were established. The established model system included stand average diameter and basal area model, stand diameter distribution model, diameter-height curve model and stem taper model. Using site quality, stand age and stand density as model＇s control variables, stand volume and stand merchantable volume model were developed according to different management intensity. Moreover, the system software with independent intellectual property rights was also developed for poplar plantations in southern area of China. The sample test showed that the stand volume and merchantable volume estimated by the growth and yield models estab- lished in this paper were reliable, and the average relative error was 〈 10%.

关 键 词：杨树人工林 生长与收获模型系统 立地质量 林分年龄 林分密度 

分 类 号：S711[农业科学—林学] S758