Land degradation indicators
The monitoring and evaluation of land degradation is the core component of desertification studies. As a technology of air-to-ground observation, remote sensing technology (RST) has become an important research approach of the geosphere, atmosphere, biosphere and cryosphere, because of its broad detection range, fast data collection, large quantities of information acquired in a short period and at a low cost. There are fewer restrictions due to better access to a wide range of ground surface conditions, etc. With the development of remote sensing techniques, information obtained in this way has become an important tool for the evaluation of land degradation. At the same time, RST provides technical support and a guarantee of precision for quantitative land degradation monitoring and evaluation of land degradation in Greater Central Asia (GCA).