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森林景观格局是构建土地利用生态安全景观的关键,然而,三峡库区(重庆段)森林景观格局出现不同程度的退化、破碎化和修正化。为确保三峡工程的正常运转与安全营运,满足重庆市生态效应与经济效益一体化发展战略(如“314”总体部署,统筹城乡改革试验区和国家战略的提升等)对库区(重庆段)土地利用生态安全的要求,未来库区以退化森林景观恢复为出发点的土地利用安全格局方略,应着重强调:①理解不同森林景观恢复模式下,森林景观要素所可能提供的生态效应和经济功能,获得库区土地利用生态安全格局情景的本底效应;②模拟退化本底、人为扰动以及工程胁迫等重大生态干扰因子与退化森林景观恢复之间的关系,找出自然或人为驱动因素对景观格局的影响,确定未来库区退化森林景观恢复模式,以利于库区生态-经济大安全格局建设。以期为目前或未来所进行的以退化森林景观恢复为载体的库区(重庆段)土地利用的生态安全格局的构建提供科学的决策依据,有利于“五个重庆”目标的实现。
However, the forest landscape pattern in the Three Gorges reservoir area (Chongqing section) degenerated, fragmented and rectified to varying degrees. In order to ensure the normal operation and safe operation of the Three Gorges Project and to meet the integrated development strategy of ecological and economic benefits in Chongqing (such as the overall deployment of “314”, the improvement of pilot areas for urban and rural reform and national strategies, etc.) The requirements of ecological safety of land use and land use safety pattern starting from the restoration of degraded forest landscapes in the future should emphasize: (1) To understand the ecological effects and economy that may be provided by forest landscape elements under different forest landscape restoration models Function to obtain the background effect of the scenario of ecological security pattern of land use in the reservoir area; ② The relationship between the major ecological disturbance factors such as simulated degradation background, man-made disturbances and engineering stress and the restoration of degraded forest landscape, and the natural or man-made driving factors Landscape pattern to determine the future restoration of degraded forest landscape pattern in the reservoir area in order to facilitate the construction of ecological-economic security pattern in the reservoir area. In order to provide scientific decision-making basis for the construction of ecological security pattern of land use in the reservoir area (Chongqing section) carrying out the restoration of degraded forest landscape, which is currently or in the future, it is in favor of the realization of the goal of “five Chongqing”.