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Coastal wetlands in the coastal zone within the marine and terrestrial interaction special ecosystem, is the richest biodiversity in nature, most productive, one of the most valuable wetland ecosystem. Coastal wetland biodiversity protection, flood control, water storage, purification terrigenous into the sea of ??pollutants, groundwater recharge, regulation of climate, has played an important role, at the same time, the various natural resources of the coastal wetlands, marine fisheries, salt and salt chemical industry prerequisite for sustainable development. The coastal wetlands of a regional, national, and global economic development and the living environment of mankind have an important influence, become the focus of attention of the international community today area. In the interaction of sea and land, the development of the coastal area of ??Hebei Province of various types, resource-rich wetlands. However, under the influence of human long-term high-intensity development activities of the coastal region of natural wetland area of ??a large number of, replaced by a large area of ??artificial wet ground, coastal wetland ecological system been extremely disruptive, are faced with the increasing threat posed by natural wetlands shrinking deterioration of the ecological environment and other issues. This paper the coastal region of Hebei Province, the most representative Qilihai lagoon wetlands, wetlands of Luanhekou, Nandagang wetlands typical of coastal wetlands as the research object, select the 1956-2005 multi-phase topographic maps and satellite remote sensing image data source, the use of RS and GIS techniques for the evolution of a typical coastal wet ground of understanding of translation analysis, and thus a detailed analysis of a typical coastal wetland evolution of the influencing factors and ecological environment effects, based on the use of integrated matrix analysis method and based on the landscape ecology of human interference strength model evaluation method, on the role of impact factor and the degree of degradation of the coastal wetlands, and as a basis of a typical coastal wetland restoration management and rational use of countermeasures. The results show that: (1) Hebei Province typical coastal wetlands by human development activities increasingly significant, especially in the degree of human disturbance gradually increased after the 1980s, has changed significantly in its physical characteristics, are degenerate evolution of the situation and its evolution trend of the main manifestations: a natural wetland area decreased, artificial wetlands area gradually increased; most of the natural wet ground for artificial wet land (farming ponds, rice paddies, Yantian) are replaced; native ecosystems have been extremely disruptive, wetland environment deterioration. (2) inning (farmland, Yantian, aquaculture ponds), hydraulic engineering (embankment, reservoirs, etc.) construction, excessive use of biological resources and pollution and human factors such as climate change, river runoff decreases natural factors in its evolution environmental stress factors. The typical coastal wetlands showing a reduction in biodiversity, landscape homogenization natural heterogeneity reduce the deterioration of the ecological environment evolution of ecological environmental effects. (3) climate change, biological resources, over-exploitation, pollution, water conservancy projects, river runoff reduction, reclamation and environmental impact of factors such as the impact of wetland degradation in turn increases, which, reclamation cause typical coastal gradual shrinking of natural wetlands; in human factors and natural factors, human factors of wetlands degradation of role is typical of coastal wetlands degradation of the dominant factors; typical coastal wetlands of human interference strength are great, degradation degrees are very high, which, Luanhekou wetland maximum , followed by wetlands Nandagang the Qilihai lagoon wetlands ranked third. (4) the typical coastal wetlands restoration project include: ① back Wai also wet work. ② water quality improvement project. ③ reasonable allocation of water resources in the basin, the construction of water supply engineering.
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