文献类型：期刊文献

中文题名：基于ALOS PALSAR数据的森林蓄积量估测技术研究

英文题名：Forest Volume Estimation Method Based on ALOS PALSAR Data

作者：杨永恬[1,2] 李增元[1,2] 陈尔学[1,2] 凌飞龙[1,2]

第一作者：杨永恬

机构：[1]中国林业科学研究院资源信息研究所;[2]国家林业局林业遥感与信息技术重点开放性实验室

年份：2010

期号：1

起止页码：113-117

中文期刊名：林业资源管理

外文期刊名：Forest Resources Management

收录：北大核心:【北大核心2008】；

基金：中央级公益性科研院所基本科研业务费专项资金项目"森林结构参数遥感综合定量反演方法研究"

语种：中文

中文关键词：ALOSPALSA;后向散射系数;森林蓄积量

外文关键词：ALOS PALSAR; backscattering coefficient; forest volume

分类号：TP79;S758.5

摘要：以吉林省汪清林业局为研究区,基于ALOS PALSAR和森林资源二类清查固定样地数据,利用非线性回归方法建立了固定样地蓄积量与所对应的PALSAR像元后向散射系数之间的关系,结果表明,除杨树(Populus us-suriensis)等树种组外,PALSAR的HV后向散射系数与蓄积量呈良好的正相关关系,对多数树种而言,交叉极化方式(HV)后向散射系数与蓄积量的决定系数比同极化方式(HH)的略高。若以林场为单位统计,采用回归方法得到的估测结果与直接利用固定样地估测的结果相差很小。
Based on the ALOS PALSAR data and forest management inventory fixed plot data,nonlinear regression method was used for analyzing the relationship between backscattering coefficient and plot forest volume（m3/hm2）.The test site was located in Wangqing Forest Bureau of Jilin Province.Results showed that HV polarization backscattering coefficient has good positive correlation with forest volume except forest stand with Poplar（Populus ussuriensis） as the dominant tree species.For most forest stands no matter what kinds of dominant tree species,the coefficient of determination between HV polarization and forest volume is higher than that between HH polarization and forest volume.Results also showed the difference between the result estimated from SAR data using regression method and that estimated directly from plots data is small when the forest farm is taken as a basic statistic unit.