| Since reform and opening-up, the social economy in China expands quickly, while it also caused the serious destruction of the ecological environment. With the contradiction between economic development and ecological environmental protection getting worse, people began to take active measures to protect the environment. In 1997, China promulgated the Technical Guide of Non-pollution EIA, which has been widely used in environmental impact assessment of water conservancy, water and electricity, mining, agriculture, forestry, transportation and the coastal development, but due to the difficult to quantitative in ecological impact assessment and the restriction of ecology investigation in large area scales, so far, ecological impact assessment in China mostly focused on single projects, lacking ecological impact assessment in the fields of strategies, policies and planning. And the impact assessment of industry development mostly focused on economic and environment, while economic activities may influence the structure and function of ecosystem, and species and its habitat, ecological system stability and the regional ecological security.With fragile eco-environment, Cheng-Yu Economic Zone acted as the ecological barrier of the upper Yangtze River. It plays an important role in the ecological security of China, hence it should consider the ecological safety during the regional development planning. Especially Chongqing in Cheng-Yu Economic Zone located in the central part of the Three Gorges Reservoir, its ecological environment protection is crucial for the safe operation of the Three Gorges. The strategy ecological impact assessment of industrial development is very necessary and meaningful for the social, economy, and ecological system. Based on the characteristics of the ecological environment in Chongqing of Cheng-Yu Economic Zone, the methodology composed of landscape ecology, graph overlay method, Systematic analysis, remote sensing and GIS technology was established in the thesis and applied to the strategy ecological impact assessment of industrial development in Chongqing of Cheng-Yu Economic Zone. Using qualitative and quantitative analysis method, this study had analyzed the current situation of the ecological environment and forecasted ecological impact influenced by key industry development in Chongqing of Cheng-Yu Economic Zone, and finally, put forward the regional industry development strategy based on regional ecological security.By using RS and GIS, this study analyzed the current situation of the ecological environment of Chongqing of Cheng-Yu Economic Zone, and identified the ecological problems in Chongqing of Cheng-Yu Economic Zone according to the regional basic characteristics, regional key industry development planning and ecological environment impact influenced by key industry development. The results showed that the land use of Chongqing in Cheng-Yu Economic Zone predominated by farmland and wood land. During 2000–2007, construction land increaseed dramatically, while woodland, farmland, grassland and woterbody decreased. Owing to land-use change, the total ecosystem services value decreased by 1.48 billion Yuan with 734.37 billion Yuan in 2000 and 732.89 billion Yuan in 2007. It is rich in biodiversity with 5 key biodiversity protection areas named Daba Mountain, Jinfoshan, Simian Mountain, Fangdoushan-Qiyaoshan and the wetland of Yangtze River. The extent of soil erosion sensibility in Chongqing in Cheng-Yu Economic Zone is main moderate and slight, and its characteristics of spatial distribution are clear and regular. The soil erosion sensibility of northeast and southeast of Chongqing is higher, and soil erosion sensibility of Chongqing one-hour economic circle is low. The extent of rocky desertification sensibility in Chongqing is mainly not sensitive, and sensitivity area mainly distributed in Kai county, Shizhu county and the Nanchuan district. The extent of habitat sensitivity is mainly not sensitive, and the area with moderate and severe sensitivity are scattered in Kai county, Yunyang county, Wanzhou district, Qijiang county, Jiangjin district and parallel ridge-and-valley area southwest to northeast. Ecological security pattern which was consisting of three levels of ecological security parts was built according to ecological function of Chongqing. The result showed that level 1, level 2 and level 3 accounted for 10.03%, 25.86% and 64.11% respectively. Level 1 mostly located in Wulin Mountain Areas, Jinfoshan and Simian Mountain. Level 2 included mountains in metropolitan of Chongqing, mountains in the Three Gorges Reservoir. Level 3 mainly included hilly area in western of Chongqing. Important ecological environment problems needed to be pay attention to included protection of the water environment of Three Gorges Reservoir, protection of the water-level-fluctuating-zone, geo-hazards in the Three Gorges Reservoir and around, biodiversity being threatened and ecological destruction caused by mineral mining in the process of the development of key industries.The main problems and obstacles to industry development were identified by assessment and analysis resources environmental capability and carrying capacity. The result showed that, the resources of land and water had considerable exploration potential with good conditions industry development, but water resource distributed uneven. Some counties'overload water environmental capacity will confine the development of industry. Small atmospheric environmental capacity will confine the development of industry, especially in the Chongqing one-hour economic circle. The severe sensitivity and with important of ecological safety in Kai county, Yunyang county, Wansheng district, Nanchuan district, Shizhu will limit industrial development opportunities.The impacts to land resource, water resource and water environment, atmospheric environment, regional ecological sensitivity, regional ecological security pattern affected by key industry development were analyzed in detail in this study according to the scene of in Chongqing of Cheng-Yu Economic Zone. The result showed that, industrial parks will occupy some farmland and woodland, industry development may leave some counties lack of water that would affect their ability of developing, to avoid any negative impact on environment by industry development, it should improve the efficiency of resources utilization and more environment-friendly. The industry parks are located in low sensitive and not sensitive area, and cover relatively small area, so they will not affect the regional ecological security pattern. But some of the parks locate in the level 1 ecological safety, which should be regulated according to the region ecological environment requirement. Industries parks are distributed mainly in appropriate development zone.The result of coupling analysis of economic development and ecological environment in Chongqing of Cheng-Yu Economic Zone showed that, it was antagonism between the industrial development and the regional ecological environment, and the coupling degrees and coupling coordination degrees were obviously different among regions with high coupling coordination degrees and middle level coupling degrees in most regions of metropolitan of Chongqing, with low coupling coordination degrees and low coupling degrees in Dazu county, Rongchang county, Shuangqiao district, Yunyang county, and middle coupling coordination degrees and medium coupling degrees in the rest. The counties with high economic benefit were not corresponding to those with high ecological environmental index, which indicated that it was not coordinated between industrial development and ecological environmental protection in Chongqing of Cheng-Yu Economic Zone.Finally, some suggestions for industrial development were put forward based on the regional ecological security pattern. Construction of industrial parks should be prohibited in level 1 ecological safety area, where should to develop ecological tourism and research services. It should strictly control the new development and construction activities in level 2 ecological safety area, and should develop ecological agriculture. Level 3 ecological safety area is suitable for development of agricultural and industry, but the basic farmland quantities should be ensured during the development. Considering the economical, social, and ecological efficiencies of industries, a six sets of index system consist of eco-environment index, scale economical index, market index, economic benefit index, social benefit index and correlation degree was established on the basis of leading industry selection principles and criterion for leading industry selection under the constraints of ecological environment, and in accordance with regional development requirements, the leading industry of Chongqing of Cheng-Yu Economic Zone was analyzed by entropy method and input-output method. The result showed that, the equipment manufacturing industry, raw chemical materials and chemical products, medical and pharmaceutical products, and electricpower, gas & water production and supply were determined as leading industries of Chongqing of Cheng-Yu Economic Zone. And it is suggest that, the industrial structure in Chongqing of Cheng-Yu Economic Zone should be adjusted and optimized as soon as possible, and it is urgently need to develop ecological agriculture, ecological industry and ecological tourism to cultivate advantage industry cluster, improve and extend industrial chain.
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