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Wetlands as an unique ecosystem cross between aquatic and terrestrial ecosystems, has played an important role in terms of conservation of biological diversity and rare species resources, maintain ecological balance and water conservation, flood and drought, degradation of pollution, climate regulation, groundwater recharge and controls of soil erosion. In recent years, people are getting to realize the value of wetlands, but also found serious degradation of wetlands. Since wetlands have a variety of social and economic value of ecological functions, as China’s reality in population growth, fast urbanization, the rapid development of industrial and agricultural economy, in order to pursue short-term benefits, many areas of wetlands have been blind reclamated. Pumping ground water, sewage and other human factors, an area rapidly decreased, the ecosystem has been severely damaged. Particularly the wetlands landed on the edge of the city are affected most by urbanization and industrialization, and have been suffered from the deepest, most serious degradation.In this paper, the main subject is to research how to restore and recreate a degraded wetland habitats through technology in the northwest semi-arid sub-humid lands. The main problems that this river mouth wetland encountered was: Rigid dam has been isolated from the river, no stable water; Terrain made destruction, fragmentation, high; the existing fragile ecological environment, biological diversity is low; The original wetland habitat types have not test. Technical way of trying to integrated, comprehensive solution based on the physical environment and eco-systems, Consider the space habitats and participate in the needs of both groups, as well as building management and maintenance measures up. In line with regional characteristics, while providing reference for other models of restorative wetland park.The paper will be divided into two parts, habitat restoration and the forming of the basis of two major environmental and biological systems, In the base area of the environment through the terrain shape, soil structure, remodeling, construction of water systems and water control, Create a suitable basis for wetland plants and animals of the wet surface features state of the environment. In some biological systems to guide and establish a more complete plant populations and biological food chain, eventually form a self-functioning ecosystems and wetland habitat construction.
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