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中国是受荒漠化影响较重的国家，保护环境资源可持续发展，及时掌握荒漠化时空变化信息，有效的实施宏观管理，是荒漠化治理的主要内容。为此，依据地表形态和生态状况的变化确定植被盖度、裸沙地占地百分比和土壤质地３项评价指标，从不同侧面指示特定土地的生产力，并将各指标因子量化，给出沙质荒漠化（风蚀荒漠化、沙化）现状综合评价模型。根据国情和沙质荒漠化遥感监测需要，这次提出的沙质荒漠化现状评价指标比较直观、便捷、实用，可以通过卫星影像目视解译或用数字影像在微机上用图像软件按象元水平解译遥感图像、制图。通过在三个不同气候区域的野外调查，验证利用遥感信息获取数据的可行性，证明沙质荒漠化监测评价指标体系适用于遥感和计算机技术进行分类评估沙化的空间分布。
China is a country heavily affected by desertification. Protecting the sustainable development of environmental resources, timely grasping the information on the spatial and temporal changes of desertification, and effectively implementing macroeconomic management are the main contents of desertification control. To this end, according to changes in surface morphology and ecological status to determine the vegetation cover, bare sand area percentage and soil texture of the three indicators of evaluation, from different aspects of the specific land productivity indicators, and quantify each factor to give the sandy Desertification (desertification, desertification) status comprehensive evaluation model. According to the national conditions and remote sensing monitoring of sandy desertification, the evaluation index of desertification desertification presented here is more intuitive, convenient and practical. It can be interpreted by satellite image visualization or by using digital image on the computer with the help of image software Remote sensing images, cartography. Through the field investigation in three different climatic regions, the feasibility of using remote sensing information to verify the feasibility of data acquisition is verified. It is proved that the indicator system of desertification monitoring and evaluation is suitable for remote sensing and computer technology to classify the spatial distribution of desertification.