PROGRESS IN GEOGRAPHY ›› 2018, Vol. 37 ›› Issue (4): 476-484.doi: 10.18306/dlkxjz.2018.04.003

• Special Column: Young Geographer Forum • Previous Articles     Next Articles

Advances in research of hillslope soil hydrological processes in the humid region of Southeast China

Kaihua LIAO1(), Ligang LV2   

  1. 1. Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, China
    2. Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Land and Resource, Nanjing 210023, China
  • Received:2018-01-25 Revised:2018-04-13 Online:2018-04-20 Published:2018-04-20
  • Supported by:
    National Natural Science Foundation of China, No. 41301234, No. 41771107;Open Foundation of Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Land and Resource, No. 2017CZEPK03

Abstract:

The humid region of Southeast China is one of the most prominent areas of environmental problems. Eutrophication of water bodies is a major problem that hampers the economic and social developments in the region. Especially in recent years, affected by government policies and market forces, the development of hilly and mountainous areas was intensified. Increasingly more virgin bamboo forests have been developed into economic land (such as tea garden). However, the land-use and land-cover change brings economic benefits as well as changes of soil pore structure and hydrological processes, which greatly affect the migration and transformation of nutrients in the soil. Within the National Natural Science Foundation of China (NSFC) supported project “Research on the physical mechanism and numerical simulation of hillslope soil hydrological processes in the hilly region of the Taihu Lake Basin” we made important progresses in the following three aspects: (1) spatiotemporal variations and influencing factors of hillslope soil moisture under different land use; (2) hillslope hydrological processes and water balance; and (3) influencing mechanism of hillslope soil hydrological processes. Despite these progresses, further research should focus on mechanisms of such processes, which would be of great importance for the control of eutrophication of the Taihu lake and non-point source pollution.

Key words: Taihu Lake Basin, hillslope scale, soil hydrological processes, numerical simulation, influencing factors