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Wetlands are an important component of the global environment section, with forests, oceans together and called the world's three major ecosystem types. Wetland ecosystems depend on water for survival, with high economic value and a variety of ecological functions. Wetlands can continuously provide human fish, shrimp, shellfish, algae and other aquatic products and reeds, wood, fresh water and other life production data, and wetland ecosystems to resist floods, regulating surface runoff, control river pollution, improve community climate, maintenance of biodiversity, clean area environment plays an irreplaceable role in other systems. Hebei wetland area in the early years, the distribution of a wide range of complete types. In recent decades Hebei wetland area is reduced, functional degradation. This use of GIS (Geographic Information System, GIS) and Remote Sensing (Remote Sensing, RS) technology to obtain satellite remote sensing data, through inspection, sample collection, data collection, data processing, field determines the size of natural wetlands in Hebei Province and Distribution , by comparing data from different years, elaborated Hebei natural wetland degradation nearly fifty years, summed up the change in wetland factors driving factors and proposes Hebei wetland protection and restoration recommendations. The research results and conclusions are: 1, in the wetland resources survey, GIS technology and RS technology is an important tool that can provide information on wetland resources of vast amounts of data, with a strong spatial analysis functions and data management capabilities for wetland resources research, development, utilization, protection and management plan provides an intuitive, accurate and scientific basis. Two, Hebei wetland area from the 1950s to nearly a million square kilometers was reduced to what is now more than two thousand square kilometers, reduce the rate of nearly 80%, natural wetlands reduced by nearly 50%, significantly reduce the performance of the water area, beach been artificially transformed natural biomass decreased degradation of water quality, ecosystem destruction, the internal structure is changed. Degradation of wetland functions, mainly for water conservation, reduced ability to regulate runoff, the impact on the regional climate and control decreases. 3, changes in wetland natural factors driving factors are divided into two categories and socio-economic factors. Natural factors mainly precipitation, average temperature, sunshine hours, socio-economic factors are population, GDP, fixed investment. In each driving factor in population and changes in precipitation on wetlands greatest impact, indicating that human social activities on wetlands affects more than natural factors predominate.
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