第二章总结了水稻铅污染的生化响应及遥感信息机理，遥感植被指数及其在农作物污染胁迫中的遥感应用，并指出这些遥感植被指数的不足。
Chapter two introduces the biochemical reaction mechanism of rice under Pb pollution stress, and the vegetation indexes which are used in this field. Then it points the disadvantages of these indexes.
VEGETATION植被指数与森林资源特征因子之间的相关性是该遥感数据用于森林资源监测的基础。
The correlationship between VEGETATION index and feature factors of forest resources is the basis that this remote sensing data will be used in forest resources monitoring.
采用定量遥感技术及斜率法，以全球植被指数MODIS NDVI数据作为数据源，对宁夏地区2000—2004年期间的植被指数变化幅度及变化趋势进行了研究。
Based on MODIS NDVI, this paper studied the variation trend of vegetation index in the years of 2000 to 2004 in Ningxia area using quantitative remote sensing technique and slope method.
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