Study On The Dynamic Change And Protection Of Important Natural Wetlands In Hebei Province

Wetland change monitoring and wetland conservation is research center ofwetland scientific, and It’s also the important research contents of ecological andenvironmental protection. Wetlands as important ecosystems is an important carrier ofthe nature of the material circulation and energy flow, play an irreplaceable role in theregulation of climate, water conservation, maintenance of ecosystem diversity. TakeHebei natural wetlands as the Research Material. By Remote sensing imageinterpretation analysis, GIS spatial analysis, summary and other historical data, toanalyze the dynamic change of wetland of Hebei Province in30years from1980-2010. Explore the trend of wetland change and its driving force, development andutilization and protection of wetlands for the wetland resources in Hebei Province toprovide some theoretical support.Hebei Province is rich in wetland resources, accounting for5.9%of the area ofHebei Province. Clear the wetland resources of the current situation and historicalchanges is the basic work of management, development and protection of wetlandresources. Interpret the history of remote sensing images, Arcgis software spaceanalysis, combined with maps of wetland history, refer to the relevant papers,30-year time span changes on wetland resources in Hebei Province. The dynamicanalysis of changes from the wetland area, wetlands, land type, ecological. Wetlandstructure, function, change analysis. From the analysis of data shows that thewetland resources in Hebei Province, facing the area of atrophy, and wetlanddegradation, environmental pollution, over-exploitation of the issue, and eventuallylead to wet a single structure, function degradation status quo. Analysis of threats towetlands, and put forward specific measures of protection and wetland restoration.The result of this paper is embodied in the following four points:1, access to wetland resources in Hebei Province, nearly30years of changeinformation. By interpreting the Landsat TM, MSS remote sensing image, todetermine the distribution of wetlands of regional and false-color image. Interpreted processing to use Edars software for remote sensing images, and wetlandclassification, and quantitative analysis of the transforming relationship between thewetlands, waters, vegetation, land for construction, vegetation. Identified internaltrends of wetlands.2to calculate the water production capacity of the catchment area of eachwetland. Wetlands water shortage wetlands face a common threat, but the wetlandsource nature water shortages or water due to human disturbance caused by theuneven distribution of wetland water shortage of debate. Based on mean annual runoffdepth in Hebei Province, wetlands, stagnant water region area, the analysiscapabilities of GIS software to calculate the water production capacity come to thewetland catchment areas in Hebei Province is able to meet the wetland ecologicalwater demand.3,To draw the pieces thematic maps of wetland resources in Hebei Province.including “the wetland resources in Hebei Province maps of wetland”,“catchmentarea map of Hebei Province”,“annual average runoff depth diagram of HebeiProvince”. And maps to calculate the area of wetlands and water production data.4, defined the status and causes of the Hebei wetland resource degradation.Over-development, water scarcity, environmental pollution, lack of natural, social,economic key factors leading to wetland degradation. And threats to the protectionand restoration measures to guide wetland conservation and restoration work.