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。

youdao

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。

youdao

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。

youdao