Research On Land Use And Land Cover Change And Its Effect On Water Resources In The Daling River Basin

Unreasonable land use patterns may have a negative impact on regional water resources.The study of LUCC(Land Use and Land Cover Change,LUCC)and its effect on water resources is one of main ways to establish a reasonable relationship between land use and water resources and to solve the contradiction between regional economic development and environment protection.Daling river has a single type of land resources,water shortage and serious environment pollution.Relieving water resources and environment problems point at negative situation of Daling river basin through the adjust land use patterns have a great significance to coordinated development of social economy and ecological environment in western Liaoning.It is the key of this paper.The innovation of this paper is using runoff simulation method according to the characteristics of the study area to analyzing its hydrological effects based on the study of LUCC.The main research contents including:(1)The paper qualitative and quantitative analyzed and predicted the situation of LUCC in the past 30 years and the next 10 years of Daling river basin by decision tree classification model,transfer matrix model and Markoff theory.The results show that the land use change of Daling river basin is significant in the past 30 years and the next 10 years.(2)The paper found that land use change has a negative effect on climate and lead to the overall landscape pattern tending to be complex of the basin through the analysis of landscape index and climate change response in this paper.(3)The paper found that compared with other land change,the agricultural and forest land change of Daling river basin has on obvious effect on runoff basin by analyzing results of runoff simulation under different land use scenarios.This paper summarized main problems of water and land resources utilization of Daling river basin and put forward some methods to improve the ecological environment of the basin based on the above results.