原有的反演算法中，在计算这部分影响的时候，需要大量的关于地表植被状况的辅助数据，而这些即时的辅助数据往往不易获得。
Much ancillary data are needed for computing the attenuating effects of the vegetation layer in the soil moisture retrieval model before, and the ancillary data are often unavailable.
本文通过详实的资料和细致地野外调查，全面地分析了通辽地区的地表物质组成、水分状况及其植被状况。
Though full materials and many field experiments in study area, surface material compositions, moisture state and vegetation condition are analyzed comprehensively.
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