Research progress of eco-geological environment carrying capacity

Eco-geological environment is developed from ecological geology and environmental geology, and constitutes an organic whole by three subsystems of geological environment, ecological environment and social and economic environment. It is combined with the carrying capacity of environment to form the carrying capacity of eco-geological environment, which is used to characterize the threshold of human activities that can be tolerated. Domestic research on eco-geological environment carrying capacity can be divided into three stages: the preparation stage before 2000, the exploration stage from 2000 to 2010, and the stable development stage from 2011 to the present. The implementation of major national guidelines and policies and major eco-geological environmental events have affected the research direction of carrying capacity. There is a certain difference between the development degree of the carrying capacity of eco-geological environment subsystems and systems. There are more studies on the carrying capacity of ecological environment, followed by the carrying capacity of geological environment, and the carrying capacity of social and economic environment is the last. During the same period, research on the carrying capacity of system is in the process of continuous integration. Existing research has deficiencies in terms of interdisciplinary integration, coupling mechanism, integration of simulation and forecasting models, and response to major national demand services. In the future, the research on the carrying capacity of eco-geological environment should adhere to the system view, integrate the two scales of subsystem and system, and push the research to a new height from the aspects of expanding the in-depth correlation of disciplines, deepening the multi-dimensional coupling mechanism, developing integrated simulation and prediction model, and responding to the needs of the state and society.