基于环境减灾卫星遥感信息估测呼伦贝尔草原叶面积指数(英文)

被引：3

作者：

陈鹏飞

孙九林

苗茹

机构：

[1] 中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室

来源：

河南大学学报(自然科学版) | 2012年 / 42卷 / 05期

关键词：

叶面积指数; 遥感; 草原; 呼伦贝尔; 环境减灾卫星;

D O I：

10.15991/j.cnki.411100.2012.05.009

中图分类号：

TP751 [图像处理方法]; P237 [测绘遥感技术];

学科分类号：

1404 ;

摘要：

国产环境减灾小卫星星座的HJ-1A和HJ-1B星于2008年发射升空,其具有的高时间分辨率和中高空间分辨率的特点,使它们可在资源环境监测中发挥巨大作用.文章探讨了利用环境减灾卫星遥感影像数据估测中国重要牧草基地呼伦贝尔草原叶面积指数的可行性.为实现此目的,2009年夏季获得呼伦贝尔草原区遥感影像三景和对应地面采样点草地叶面积指数信息,利用8个常用光谱指数分别建立了叶面指数的反演模型.结果表明:各光谱指数均与叶面积指数具有较好的定量关系.其中,增强光谱指数(Enhanced Vegetation Index,EVI)的结果最好,模型的交叉检验决定系数为0.50,均方根误差为0.34.环境减灾卫星可为草原监测和管理提供重要数据支撑.

引用

页码：554 / 562

页数：9

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