摘要
植被覆盖度是衡量地表植被状况的一个最重要的指标,也是影响土壤侵蚀与水土流失的主要因子。本文是在像元二分模型两个重要参数(NDVIveg、NDVIsoil)推导的基础上,对已有模型进行了改进,建立用归一化植被指数(NDVI)估算植被覆盖度的模型,并应用该模型计算出滁州市的植被覆盖度。通过滁州市部分地区的实地考察,对植被覆盖度的估算结果进行了验证,结果表明使用此改进模型进行植被覆盖度遥感监测是可行的。
The vegetation fraction is one of the most important indicators to measure vegetation condition,and it is also a major factor of eroding soil.The purpose of this paper is to improve the model of dimidiate pixel based on a derivating two important parameters and to establish the model of deriving vegetation fraction from normalized difference vegetation index(NDVI).By the review of Chuzhou,the vegetation coverage estimates are validated,the results show that the use of this to improve the model for remote sensing monitoring of vegetation coverage is feasible.
出处
《测绘与空间地理信息》
2013年第5期51-54,57,共5页
Geomatics & Spatial Information Technology
基金
全国矿产资源潜力评价物探化探遥感自然重砂综合信息评价项目(1212030713203)资助
