After the desertification monitoring individually in 1994 and 1999, we completely mastered the dynamic change of desertification surrounding the area of Qinghai Lake.
经1994年、1999年两次荒漠化监测，全面的掌握了青海湖及其周围荒漠化土地变化动态。
Remote sensing, with the merit of large information capacity, huge observation scope, high accuracy and speed, has become the main means of regional desertification monitoring and evaluation.
近些年来，遥感以其信息量大、观测范围广、精度高、数据更新速度快等优点，已成为区域荒漠化监测与评价的主要手段。
Dynamic monitoring of vegetation coverage of sands using NOAA satellite data can usefully aid in the understanding of the dynamic processes of desertification in the Ordos region.
用NOAA卫星数据对沙地植被覆盖度进行动态监测可以为认识该地区的荒漠化动态变化及过程提供丰富的信息。
Therefore, it is very necessary to research methods and establish a framework of desertification vegetation monitoring and evaluation information system at the county level.
因此，以县为单元，研究建立荒漠化植被监测的框架和信息处理和评价方法很有必要。
The research on macroscopic monitoring of desertification in Gansu is one part of DesertificationMonitoring of all the country.
“甘肃省荒漠化宏观监测研究”是全国荒漠化监测的组成部分。
The research on macroscopic monitoring of desertification in Gansu is one part of DesertificationMonitoring of all the country.
“甘肃省荒漠化宏观监测研究”是全国荒漠化监测的组成部分。
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