Analysis Of Land Use Change And Ecological Vulnerability In Tianjin

Land Use and Land Cover Change(LUCC)is one of the important factors affecting environmental change.As an important national central city in the north of China,Tianjin has a relatively fast economic development rate,and the regional economic aggregate continues to grow at a high speed.Along with the rapid development of economy and industry,land use and human-land relations in the region have undergone major changes,and the contradiction between land intensive use,rough development mode and deteriorating reg:ional ecological environment has become increasingly apparent.Therefore,this study introduces the theory of land use intensity analysis,and extracts the information and laws of land use change from shallow to deep from the three levels of land use interval,land type and conversion,and constructs a regional land use change information database.Landscape pattern index analysis method,establish ecological vulnerability assessment model under land use change,quantitatively study the ecological vulnerability change caused by land use change in the region,and summarize and analyze the impact of regional land use change on ecological vulnerability.It provides a reference for regional rational planning of land use and ecological environment protection.The article first discusses the background,significance and research plan of this research,sorts out and analyzes the relevant research status at home and abroad,and establishes a basic research literature database.Then,it introduces the general situation of the research area,the related research methods of this research and the data source.At the same time,the relevant data needed in the research process are processed;after that,the land use intensity analysis theory is used to extract and analyze the processed land use data,and the characteristics of land use change in Tianjin during the past 30 years in 1980-2010 are summarized;Using the constructed ecological vulnerability assessment model under land use change,the impact of regional land use change on ecological vulnerability was analyzed,and the research area was simulated using the CA-Markov model for 30 years as the research step.The land use pattern,combined with the response relationship between land use change and ecological vulnerability in the study area from 1980 to 2010,the scenario analyzes the response relationship between land use change and ecological vulnerability during the study area from 2010 to 2040.Targeted recommendations for the future development of the region.