高技术通讯2009,Vol.19Issue(11):1201-1205,5.DOI:10.3772/j.issn.1002-0470.2009.11.018
基于MODIS数据研究黄河中上游区域地下水对地表植被影响的方法
Research on the influence of groundwater on vegetation development in the upper-middle reaches of the Yellow River based on MODIS sensing data
摘要
Abstract
The authors of the paper extracted the normalized difference vegetation index ( NDVI) and the vegetation conditional ratio (VCR) from the MODIS images, and analyzed the relationship among NDVI, VCR and the measured data of groundwater of the same location in the research region. Based on this, the depth of groundwater suitable for vegetation growing in the upper-middle reaches of the Yellow River was calculated. The results showed that the depth of groundwater suitable for vegetation growing in the research region ranges from 0. 8m to 4. 5m, and the most suitable groundwater depth is 1.2m. The method developed in this study is suitable for researching the relationship between large-scale groundwater and land surface vegetation environment in the arid area.关键词
遥感/归一化差值植被指数(NDVI)/条件植被覆盖率(VCR)/地下水/黄河中上游地区Key words
remote sensing/normalized difference vegetation index (NDVI)/vegetation conditional ratio (VCR)/groundwater/upper-middle reaches of Yellow River分类
信息技术与安全科学引用本文复制引用
田凯,李小青,康相武,霍艾迪..基于MODIS数据研究黄河中上游区域地下水对地表植被影响的方法[J].高技术通讯,2009,19(11):1201-1205,5.基金项目
"十一五"国家科技支撑计划(2006BAB04A07)和973计划(2006CB403404)项目资助. (2006BAB04A07)