江苏沿江地区生态空间格局优化研究

doi:10.13776/j.cnki.resourcesindustries.20250702.005

摘要/Abstract

摘要： 江苏沿江地区处于长江经济带生态承载压力最大、生态保护与经济活动矛盾最突出、生态修复形势最紧迫的位置，开展江苏沿江地区生态空间格局优化研究，既可以缓解区域生态压力、促进生态保护与经济发展协同共进，也可为长江经济带生态文明建设与高质量发展提供科学依据与决策支持。论文以江苏沿江10 km范围涉及的区县为研究对象，以其范围的土地现状数据为基础数据源，通过生态服务价值重要性评估和生态敏感性评价选取生态源地，运用最小累积阻力模型识别生态廊道，以此构建江苏沿江地区的生态空间格局。在此基础上，围绕生态节点、生态廊道等开展生态空间格局优化，并运用景观连接度指数对优化前后的生态空间加以评价。通过研究，识别出江苏沿江地区生态源地9个、生态廊道8条，面积分别为2 937.79 km²和198.12 km²。然后围绕生态源地、生态廊道开展格局优化，通过增加1个生态跳岛和6条生态廊道，形成了更为完整、系统的生态空间格局。通过进一步连接生境空间，为生物迁移提供了通道，不仅提高了该地区的生物多样性，还有助于降低景观破碎化，提升区域景观连接度。经评价，优化后的生态空间连通性更高、连接更稳固。这为江苏沿江地区国土可持续利用与保护提供了空间指引，也为长江经济带中上游地区的国土利用提供了方法指导。

关键词: 长江经济带, 生态空间格局优化, 最小累积阻力模型；江苏沿江地区

Abstract: Jiangsu's Yangtze River areas bear the most ecological carrying capacity pressure, the biggest conflict between ecological protection and economical activities, and the most urgent ecological restoration. To study ecological spatial pattern optimization in Jiangsu's Yangtze River areas can relieve regional ecological pressure, promote a synergism of ecological protection and economic development, and provide decision supports for ecological civilization construction and high-quality development in Yangtze River economic zone. This paper, taking Jiangsu's counties within 10 km of Yangtze River as the study area, uses their land data as basis, and employs ecological servicing values significance evaluation and ecological sensitivities evaluation to select ecological source areas, and applies the minimum cumulative resistance model to identify ecological corridor, on which ecological spatial pattern of Jiangsu's Yangtze River areas is constructed. Their ecological spatial patterns are optimized at ecological nodes and in ecological corridors, which are evaluated by means of scene connection index before and after optimization. This study identifies 9 ecological source areas and 8 ecological corridors in Jiangsu's Yangtze River area with areas up to 2 937.79 km² and 198.12 km², respectively. 1 ecological floating island and 6 ecological corridors have been added through pattern optimization, forming a complete and systematic ecological spatial pattern. Further connecting ecological space provides path for biological migration, which not only increases its biodiversity, but also reduces scenic fragmentation and decreases regional scene connection. The optimized ecological spaces have higher connection and stability, offering guidelines for sustainable land use and protection of Jiangsu's Yangtze River areas and directions for land use in the middle- and upper-stream of Yangtze River economic zone.

Key words: Yangtze River economic zone, ecological spatial pattern optimization, minimum cumulative resistance model, Jiangsu's Yangtze River areas

中图分类号:

F205
F207

王振山, 吕剑成, 沈春竹, 卜心国. 江苏沿江地区生态空间格局优化研究[J]. 资源与产业, 2025, 27(4): 119-127.

WANG Zhenshan, LU Jiancheng, SHEN Chunzhu, BU Xinguo. OPTIMIZATION OF ECOLOGICAL SPATIAL PATTERN OF YANGTZE RIVER AREAS IN JIANGSU PROVINCE[J]. Resources & Industries, 2025, 27(4): 119-127.

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