广西耕地植被指数月变化特征分析研究

Study on the monthly changing characteristics of farmland vegetation indices in Guangxi

通过互联网直接下载美国地质调查局 (USGS)数据中心的全球 1km分辨率 NDVI10 d合成 NDVI资料 ,选取广西南、中、北部 5个水田监测点和 6个旱地监测点 ,分析其 NDVI月变化特征。结果表明 :NDVI的月变化与耕地上农作物生长变化有较密切的关系 ,可以利用 NDVI资料 。

The global 1km resolution NDVI 10d from the USGS data center is unloaded directly from the internet to compose NDVI information, and 5 monitoring points in paddy field and 6 monitoring points on dry land are selected from the southern, central and northern part of Guangxi to study the monthly changing characteristics of their NDVI The results shows that the monthly change of NDVI has a close relation with the growing change of crops, hence NDVI information may be used to develop the remote sensing monitoring by satellite for crops growing and agricultural meteorological disaster