基于像元二分模型的淮河上游植被覆盖度遥感研究  

Vegetation Coverage in Upper Huaihe River Basin Based on Binary Pixel Model of Remote Sensing

作　　者：刘玉安[1,3] 黄波[1,2] 程涛[1,4] 曲乐安[3] 

机构地区：[1]武汉大学,测绘遥感信息工程国家重点实验室,湖北武汉430079 [2]香港中文大学地理与资源管理系,中国香港新界 [3]安徽师范大学国土资源与旅游学院,安徽芜湖241003 [4]广西工学院汽车工程系,广西柳州545006

出　　处：《水土保持通报》2012年第1期93-97,267,共5页Bulletin of Soil and Water Conservation

基　　金：国家高技术研究发展计划“全球地表覆盖遥感制图与关键技术研究”(2009AA12200)

摘　　要：在分析国内外植被覆盖度遥感估算方法的基础上,选用NDVI像元二分模型,利用"北京一号"小卫星多光谱数据,结合淮河上游流域实际情况,设计了模型应用的技术路线,对研究区植被覆盖度进行了精确估算。利用目估法和照相法对估算结果进行实地验证和分析。结果表明,模型相关系数达到了0.818,研究区内平均植被覆盖度为58.1%,呈现北部低南部高的γ型空间分布。Based on the analysis of estimation methods for vegetation coverage at home and abroad,a technological route of model application is designed to estimate vegetation coverage in the upper reaches of Huaihe River.The study is conducted by using binary pixel model and ＂Beijing-1＂ micro-satellite multi-spectral data under consideration of the situation of the study area.Then the estimated results are validated and analyzed by using ocular method and photographic method.Results show that the model correlation coefficient is 0.818.The average vegetation coverage in the study area is 58.1% and presents a γ-type spatial distribution which is low in the north and high in the south.

关 键 词：像元二分模型 植被覆盖度 “北京一号”小卫星 遥感 淮河上游流域 

分 类 号：P237[天文地球—摄影测量与遥感]