1, Earth system science: Earth system science is a comprehensive discipline, which studies the interaction and influence of all levels of the earth, including atmosphere, water, soil, rocks and organisms. In the postgraduate entrance examination, candidates need to master the basic concepts, principles and methods of earth system science.

2. Climatology: Climatology is a discipline that studies the changes and laws of the earth's climate. In the postgraduate entrance examination, candidates need to master the knowledge of the causes, mechanisms and effects of climate change, and be able to analyze and solve problems related to climate change.

3. Hydrology: Hydrology is a discipline that studies the formation, utilization and management of water resources such as surface water, groundwater and atmospheric water. In the postgraduate entrance examination, candidates need to master the basic concepts of hydrology, hydrological cycle process, hydrological data processing and analysis.

4. Geomorphology: Geomorphology is a discipline that studies the topography, geomorphological evolution and geomorphological development law of the surface and underground. In the postgraduate entrance examination, candidates need to understand the basic concepts of geomorphology, geomorphic types, geomorphic evolution and geomorphic development process.