Study On Influencing Factors And Ecological Restoration Schemes Of Typical Wetlands In Liaohe River Basin

As the most valuable type of natural ecosystem,wetlands provide food,water,and shelter for animals such as wild animals,fish,and birds.They also provide important ecosystem services such as water conservation and improvement of water quality.However,due to the effects of climate and human interference,the structure and function of the wetland ecosystem in the Liaohe River Basin are affected.In order to carry out effective ecological restoration,the wetland impact factors and ecological restoration programs are studied in this paper.This paper uses a combination of Geographic Information System(GIS)and remote sensing technology to monitor and analyze the distribution and transfer of wetland landscape types.Using pressure-state-response model,combined with field surveys and literature review,yaahp analytic hierarchy process software and fuzzy synthesis are applied.The method calculates the health status of the wetland ecosystem and finds out the main impact factors of the wetland.The results showed that the ecosystem of Panjin Wetland was healthy and the water quality was generally good.The level of ammonia nitrogen and total nitrogen in some segments exceeded the standards,and the fragmentation of the landscape was serious.Mainly from the rational allocation of water resources,strengthen pollution prevention and control,adjust the structure of wetland industries and other aspects of ecological restoration.The health status of Puhe wetland ecosystem is slightly lower than that of Panjin wetland.The area of wetland shows a decreasing trend.The water source for maintaining the ecological environment-the Puhe replenishment is greatly affected by seasonality,the natural precipitation and the upstream supplementary water are insufficient,and the point source pollution in the Puhe River Basin results in water pollution.Mainly from the control of pollution sources,improve the sewage purification plant settings,the construction of ecological corridors and other aspects of ecological restoration.The Lianhua Lake wetland ecosystem is generally healthy.The individual outlets have a high pH and the eutrophication of the water is serious.Mainly from the construction of artificial wetland sewage treatment system,improve water quality,reduce the impact of new urban construction and other aspects of ecological restoration.The research methods and results of the three typical wetlands in the Liaohe River Basin not only have implications for the ecological restoration of related wetlands in the Liaohe River Basin,but also provide systematic research methods and ideas for the ecological restoration of the Liaohe River Basin and other types of wetlands in the country.