As the first step for sandy land control, sandy land monitoring can provide effective technical support for the decision and sandy land management project.
沙化土地监测可以为沙化土地工程治理及决策提供有效的技术支持，它是治理土地沙化的首要环节。
GIS techniques are characterized for its rich information and direct, macro and exact vision, and therefore are an effective tool for sandy land monitoring.
GIS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。
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。
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