Evaluation of Wetland Ecological Service Function in Momoge National Nature Reserve Based on Ecological Water Demand
Wetland ecological service function is an important manifestation of wetland ecosystem security.The evaluation of wetland service function can directly reflect the damage situation or restoration effect of wetland,and quantitatively analyze the influencing factors of its change.Ecological environmental water requirement is the representation of regional water resource supply and demand and spatial pattern changes,and plays a supporting role in wetland ecological service function.The evaluation of wetland ecological service function based on ecological and environmental water demand can clarify the causes of changes in regional ecological and environmental characteristics from the root,and then clarify the changes of ecological service function.Taken Momoge National Natural Reserve as the study area,this study uses land use,vegetation and hydrological data to quantitatively calculate three important wetland ecological service functions,namely climate regulation,resource supply and ecosystem integrity protection,based on the composition and weight of each ecological service function.The results showed that the ecosystem service function and ran well from 1988 to 1999,and then gradually weakened with the degradation of the wetland from 2000 to 2010,finally it rebounded after 2011,indicating that the wetland conservation work was effective and the degradation rate of the wetland was slowed down and the ecological service function of wetland is gradually restored.The research results will serve the evaluation of ecosystem service function in the study area from the perspective of ecological environmental water demand,and the prediction of wetland change trend will be realized in combination with climatic conditions such as rainfall and temperature,which is of great significance for wetland protection and management.
ecological service functioncomprehensive weighting methodwater demand for ecological environmentgrading evaluationMomoge National Natural Reserve