Preliminary Analysis on Protection an Ecological Evaluation System of Yellow River Delta Wetland

Wetland ecosystem is listed as one of three supreme ecosystems, which has various ecological functions of resisting flood, regulating runoff, improving the climate, controlling pollution, beautifying the environment and maintaining the regional ecological balance. The health of estuarine wetland ecosystem is very important for the river to maintain its healthy life and to achieve the sustainable development of resources and the environment. Based on the analysis of the Yellow River Delta wetland resources, the authors established a series of ecological evaluation systems and put forward countermeasures of wetland conservation and sustainable utilization.