文献类型：期刊文献

中文题名：河南省栎类和杨树林分断面积和蓄积生长模型构建

英文题名：Construction of stand basal area and volume growth model for Quercus and Populus in Henan Province of central China

作者：颜伟[1] 段光爽[2,3] 王一涵[4] 孙钊[5] 周桃龙[6] 符利勇[3]

第一作者：颜伟

机构：[1]贵阳市森林资源管理站,贵州贵阳550002;[2]信阳师范学院数学与统计学院,河南信阳464000;[3]中国林业科学研究院资源信息研究所,北京100091;[4]河南农业大学生命科学学院,河南郑州450002;[5]中国林业科学研究院科技管理处,北京100091;[6]河南省淅川县林业局,河南南阳474450

年份：2019

卷号：0

期号：6

起止页码：55-61

中文期刊名：北京林业大学学报

外文期刊名：Journal of Beijing Forestry University

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：林业公益性行业科研专项(201504303);中国林业科学研究院林业科技支撑与科技服务项目“基于无人机平台的淅川县森林资源消长监测和立地质量评价技术”

语种：中文

中文关键词：断面积生长模型;蓄积生长模型;栎类;杨树;Richards方程

外文关键词：growth model of basal area;growth model of volume;Quercus;Populus;Richards equation

分类号：S757.2

摘要：【目的】建立河南省栎类和杨树林分断面积和蓄积生长模型,为森林可持续经营提供基础数据。【方法】基于河南省最近3期一类森林资源清查数据,从9个具有生物学意义的备选模型中选出一个最优基础模型。以树种和立地等级作为哑变量,构建林分断面积和蓄积生长模型。【结果】利用全部样地数据拟合9个备选模型,断面积和蓄积最优生长模型都是Richards形式的模型,决定系数均在0.92以上。引入树种和立地等级作为哑变量后,与基础模型相比断面积和蓄积生长模型拟合精度都有所提高,其决定系数分别为0.98和0.94。【结论】带树种和立地等级的哑变量模型能同时反映河南省栎类和杨树林分断面积和蓄积生长规律,既减少了建模工作量,又提供了不同林分合并建模的方法。河南省栎类林分断面积和蓄积生长极限值高于杨树;相同林分密度条件下,栎类早期生长速率低于杨树,且栎类和杨树的生长速率均随着立地质量的下降而降低。
[Objective]Developing the stand basal area and volume growth model for Quercus and Populus in Henan Province of central China was technical data support for forest sustainable management.[Method]Based on the latest three data of national forest inventory in Henan Province,an optimal basic model was selected from 9 candidate models with biological significance.Taking account of the disturbance from species and site class,the stand basal area and volume growth model with dummy variable was constructed.[Result]The optimal models of 9 alternative models fitted to the total data were the form of Richards,whose coefficients of determination were all above 0.92.The fitting precision of the stand basal area and volume growth model with species and site class as dummy variable,whose coefficients of determination were 0.98,0.94,respectively,was enhanced distinctly compared with basic model.[Conclusion]The growth pattern of stand basal and volume for Quercus and Populus in Henan Province was described by the model with species and site class as dummy variable,which reduced the workload of computation,and also provided a method for integrating different forest stand.The limit values of stand basal area and volume for Quercus were higher than those for Populus,but were reversed in growth rate with the same stand density.Furthermore,the growth rates of stand basal area and volume with the same stand density for Quercus and Populus were both decreased with the decrease of site quality.