Remote Sensing Dynamic Monitoring And Landscape Variation Analyse On Wetland Resourse In Yancheng

Wetland has various ecosystems function and economy, society value. It is a mature resource treasury and living environment that mankind relying for existence and development. In recent years, due to economic development, population growth, the human environment of the interference and destruction of wetlands growing, how to prevent the degradation of wetland has becoming the major issue. In this paper, the wetland resource in Yan-Cheng was extracted by using multi-source remote sensing data of CBERS, ETM, TM, MSS, and other non-remote sensing data, such as the terrain map, through the information retrieval results, analysis and forecast the change of wetland landscape with the Markovian models, the Convertion Marix and the Dynamics Rate.The main body of the thesis can be divided into five parts:In the first part, introduce the studying background , the studying reason and the research progress of 3S.In the second part, introduce the regional profile, the climate, the landform, the water, the animals and plants and the tourism.In the third part, introduce the extracting the wetland resource in Yan-Cheng, founding the optimal modes of the CBERS, ETM, TM and MSS image data, Geometric correction, Spectra enhanced. Integrating with authoritative wetland classification systems and the characteristics of wetland reflected from images, wetland classification system and tools of interpretation in research area was established. Wetland resource information in the four periods was extracted by using the method of visual interpretation. It shows that Wetland landscape gradually become advantages.In the fourth part, Yan-Cheng wetlands temporal and spatial variation results and the analysis, the study area wetlands dynamic change, type fragmentation, the forecast of Markovian analysis. It shows that the total area of wetlands in little change, natural wetland loss, artificial wetlands increases every year, increasing the level of the whole study area environment has been damaged and has not been improved.In the fifth part, analysis of changes to the landscape. Based on the existing data, the author analyzed that such changes in landscape pattern is because of some nature changes and human movements, such as geotectonic movement, climate, economic development, population growth. But dynamic monitoring results that human movements is the main factor of landscape pattern changing .