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Modelling the artificial recharge of a wetland and its influence on regional hydrological process in China: a case study

Wetlands are constantly affected by human activities such as landscaping, additional abstractions, and changes in catchment imperviousness, resulting in the reduction of wetland area and degeneration of water quality. Modelling of such anthropogenic factors should be explicitly considered, in order to provide better understanding of the hydrological impacts of wetland restoration. In this paper, the wetland module in a distributed hydrological model, SWAT, is modified to simulate the artificial water input to the designated wetlands. The impact and effect of recharging wetlands on local hydrological cycle, sea outflow and estuary ecology is discussed. The Qingdianwa depression, located in the north of Tianjin city, China, is used as a case study to investigate the effect of human activities on the natural eco‐hydrological process as well as different restoration schemes.