...遥感监测技术；辽西地区 [gap=1144]Key wordsDendrolimus tbaulaeformis Tsai et Liu；TM imagery；vegetation index；remote sensing monitoring technique；western Liaoning ..
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Satellite remote sensing monitoring technique is characterized for its rich information and direct, macro and exact vision, and therefore is an effective tool for sandy land monitoring.
卫星遥感技术是航天航空技术与计算机技术的高度融合，具有信息量大、形象直观、宏观、准确等特点，是沙化土地监测的有效工具。
Remote Sensing technique has superiority in drought monitoring. In last years many researches in this area have been developed in China.
运用遥感技术进行干旱监测具有不可替代的优势，我国近年来在此领域做了不少的探索和研究。
Remote sensing monitoring of sandification is a key technique to collect the status and dynamics of sandy land, providing scientific bases for the national sandification control.
沙化土地遥感监测是采集沙化土地现状及其动态变化的重要技术手段，能够为国家防沙治沙提供重要的科学依据。
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