重庆三峡库区生态安全研究

Study on ecological security in Three Gorges reservoir area of Chongqing

调研分析了威胁重庆三峡库区生态安全的原因,指出陡坡种植、过度农垦放牧和樵采、高强度利用土地与生物资源、植被严重破坏、不规范开发山区城镇用地和工程建设、生产和生活有害废弃物随意排放是威胁库区生态安全的主要因素,生产方式落后、粗放经营和产业结构不合理等加速其生态系统的退化。并提出加快库区自然保护区建设,实施小流域综合治理和立体农业,退耕还林还草等建立库区生态安全体系的基本措施。

Through survey of present ecological security situation of the mountainous region in Three Gorges reservoir area of Chongqing, the reasons for threatening ecological security in Three Gorges reservoir area are analyzed. It is pointed out that planting in steep slope, over reclamation and graze, excessive cutting firewood and utilization of land and biological resources, vegetation distruction, unsuitable development mountain areas and construction of factory and town, and untreated emission waste of work and living are main factors to threat ecological security of Three Gorges reservoir area. The backword production model, extensive cultivation and management, unsuitable structure of industry and so on make ecological system further worsen. Finally, the countermeasures and proposes of establishing ecological security system including the accelerating natural protection region construction, putting small basin construction and stereoscopic agriculture construction into practice, and returning the grainplots to forestry are put forward.