1) It is also called evapotranspiration, which is the sum of leaf emission (transpiration) of plants on the ground and soil evaporation between plants. That is, the water demand of crops in irrigation project. This data set is the monthly data of evapotranspiration in Central Asia; 2) MODIS data, which is calculated by energy balance method; 3) station disk evaporation verification; 4) evapotranspiration is the total water vapor flux transported to the atmosphere by vegetation and the ground as a whole, which mainly includes vegetation transpiration, soil water evaporation and the evaporation of intercepted water or dew. As an important part of energy balance and water cycle, evapotranspiration is not only a shadow The growth, development and yield of ring plants also affect the general circulation of the atmosphere and play a role in regulating the climate
This data set contains the selection criteria and database of international fragile ecosystem national parks. Typical countries such as the United States, Canada, Australia, New Zealand, Norway, Sweden, South Africa and Tanzania are selected as representatives Table 1 includes: selection criteria for different levels, including 4 indicators for the first level, 16 indicators for the second level, and 72 indicators for the third level; Table 2 includes the list of national parks in typical countries such as the United States, Canada, Australia, New Zealand, Norway, Sweden, South Africa, Tanzania and other typical countries, and the selected indicators include the country, the name of the National Park, the protected time and supervision time, area, description, IUCN management type, governance type, management organization and international standards.