%0 Dataset
%T Data set of comprehensive desertification control zoning in semi-arid desert areas of northern China (2020)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/c2f2ee92-360d-43a0-a062-41304031ded5
%W NCDC
%R 10.12072/ncdc.ZDYF.db1684.2022
%A Liao Jie
%K Zoning;desertification control;semi-arid area
%X The division is carried out on the basis of field investigation, with reference to Zhu Zhenda's "desertification control zoning map of northern China", China's vegetation distribution map (1 million), China's soil distribution map (1 million), and combined with China's land cover data and digital elevation model (DEM).1、 Zoning principle1. Principle of natural zoneThe study area spans more than 1500 kilometers from east to west and more than 1300 kilometers from north to south. Affected by the zonal distribution of rainfall, a natural zone has been formed from southeast to northwest, from semi humid zone to semi-arid zone, and then to arid zone. In different natural zones, the causes, development process, manifestations, distribution, degree and development trend of desertification land are different, There are obvious regional differences in control approaches.2. Principle of desertification development stage and degreeIn the same natural zone, due to the different development stages and degrees of desertification process, the prevention and control methods and emphases will also be different.3.Principle of consistency between natural conditions, resource utilization and regional sustainable development.In a natural zone, there are obvious regional differences in the causes of desertification land, land use mode and intensity, resource development direction, ecological protection and so on. Especially in resource utilization and development and regional sustainable development, the difference is more obvious, which is also reflected in the principles, methods and measures of desertification land prevention and control.2、 Zoning index system1. Grade I desertification control areaIn the semi-arid areas where desertification occurs (including some semi humid areas), with the continuous expansion of human activities, natural and human mixed landscape types such as pastoral areas, Agro pastoral ecotones and agricultural areas have gradually formed, and these natural and