长江三角洲生态环境脆弱带生态修复技术研究进展

我国长江三角洲作为中国第一大经济区，综合实力最强的经济中心，其城市化和工业化发展迅速，但在人类活动的高强度影响和干预下，该地区的资源环境问题日益突出：生态环境脆弱性程度的增高，脆弱性发展趋势的加快等等一系列问题严重影响着长江三角洲的可持续发展，该区域生态环境呈现出的脆弱性特征已成为我国新的生态环境脆弱带。基于长江三角洲自然、经济、社会和环境状况的数据基础，及国内外脆弱性综合评价指标(自然因素和人为因素),对长江三角洲进行生态环境评估发现该区域具体的生态环境问题主要为土壤污染、城区大气污染、水环境污染，以及地面沉降等。通过剖析长江三角洲4类生态环境问题(土壤污染、大气污染、水环境污染、地面沉降)的现状、形成的具体原因及带来的影响，结合国内外生态修复技术的研究成果，详细论述了该区域4类生态环境问题的生态修复技术类型(物理方法、化学方法、生物方法、生态方法)、基本原理及各自的优缺点，同时评估了不同生态修复技术在污染治理过程中的可行性、安全性、经济性，旨在以上述理论研究为参照标准评估该区域环境污染治理过程中生态修复技术的修复潜力，为长江三角洲生态环境问题的治理修复提供方案及理论参考。长江三角洲...

Research progress on ecological restoration technology of ecological fragile zone of the Yangtze River Delta

As the largest economic zone and the economic center with the strongest comprehensive strength in China, the Yangtze River Delta has developed rapidly in urbanization and industrialization. However, under the high-intensity influence and intervention of human activities, the resource and environmental problems in the region have become increasingly prominent:the increase of ecological environment vulnerability, the acceleration of vulnerability development trend and a series of problems have seriously affected the sustainable development of the Yangtze River Delta, the fragile characteristics of the regional ecological environment have become a new ecological environment fragile zone in China. Based on the data of the natural, economic, social and environmental conditions of the Yangtze River Delta and the comprehensive vulnerability assessment indicators at home and abroad (natural and human factors), the ecological environment assessment of the Yangtze River Delta was carried out. It was found that the specific ecological and environmental problems in the region mainly included soil pollution, urban air pollution, water environment pollution, land subsidence and so on. By analyzing the current situation, specific causes and impacts of four types of eco-environmental problems (soil pollution, air pollution, water environment pollution and land subsidence) in the Yangtze River Delta, combined with the research results of ecological restoration technology at home and abroad, the types of ecological restoration technology (physical method, chemical method, biological method and ecological method), basic principles, advantages and disadvantages of four types of eco-environmental problems in the region were discussed in detail. At the same time, the feasibility, safety and economy of different ecological restoration technologies in the process of pollution control were evaluated aiming to evaluate the restoration potential of ecological restoration technologies in the process of environmental pollution control in the region with the above theoretical research as the reference standard, so as to provide a scheme and theoretical reference for the treatment and restoration of ecological environmental problems in the Yangtze River Delta. The healthy development of the ecological environment in the Yangtze River Delta requires various efforts, all members of society need to enhance their awareness of ecological and environmental protection, establish sound policies, laws and regulations related to ecological restoration, apply interdisciplinary comprehensive restoration technology, and revise the theoretical system and technical specifications of ecological restoration. The above measures were designed to provide technical guarantee for the construction of ecological civilization and sustainable development in the Yangtze River Delta, and promote the coordinated development of ecological and environmental protection and economy and society in the region.