1. 贵州师范大学 地理与环境科学学院,贵州,贵阳,550025
2. 国家喀斯特石漠化防治工程技术研究中心,贵州,贵阳,550001
3. 中国科学院 地理科学与资源研究所 资源与环境信息系统国家重点实验室,北京,100101
纸质出版:2023
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夏照亮, 兰安军, 范泽孟, 等. “三生”空间视角下喀斯特山区流域景观生态风险的时空分布特征[J]. 水土保持通报, 2023,43(2):256-266.
Xia Zhaoliang, Lan Anjun, Fan Zemeng, et al. Spatial and Temporal Distribution Characteristics of Landscape Ecological Risks in Karst Mountain Watersheds from Productive-Living-Ecological Perspective[J]. Bulletin of Soiland Water Conservation, 2023, 43(2): 256-266.
夏照亮, 兰安军, 范泽孟, 等. “三生”空间视角下喀斯特山区流域景观生态风险的时空分布特征[J]. 水土保持通报, 2023,43(2):256-266. DOI: 10.13961/j.cnki.stbctb.20221012.003.
Xia Zhaoliang, Lan Anjun, Fan Zemeng, et al. Spatial and Temporal Distribution Characteristics of Landscape Ecological Risks in Karst Mountain Watersheds from Productive-Living-Ecological Perspective[J]. Bulletin of Soiland Water Conservation, 2023, 43(2): 256-266. DOI: 10.13961/j.cnki.stbctb.20221012.003.
[目的] 深入分析喀斯特流域景观生态风险变化规律,为山区流域制定生态风险防控措施与景观管理规划提供科学参考。 [方法] 以典型喀斯特流域红水河流域贵州段为研究区域,从“三生”空间视角出发,采用GIS空间分析、景观生态风险指数等方法探究了研究区景观生态风险的时空变化机理,并借助分布指数方法分析了景观生态风险时空分布与地形地貌的关系。 [结果] ①自2000年来,红水河流域基于“三生”空间的用地转型表现为生产、生态空间减少而生活空间快速增加,不同用地类型的转移引起区域景观生态风险变化的贡献率大小不一。 ②2000—2020年期间景观生态风险整体呈缓和趋势,红水河流域南部的景观生态风险总体优于其北部地区。 ③从景观生态风险在地形位梯度上的分布看,景观生态风险程度与地形位梯度成反比关系;另外,非喀斯特区和纯喀斯特区景观生态风险要低于亚喀斯特区。 [结论] 红水河流域景观生态风险虽有所好转,但部分景观生态问题依然突出,需要加强对生态环境的治理保护。
[Objective] The factors affecting landscape ecological risk in karst watersheds were determined in order to formulate ecological risk prevention and control measures and landscape management planning in mountain watersheds. [Methods] This study was conducted in the Guizhou section of the Hongshui River basin (a typical karst basin). The study utilized the perspective of “productive-living-ecological” space
and used GIS spatial analysis
landscape ecological risk index
and other methods to explore the temporal and spatial change mechanism of landscape ecological risk in the study area. The relationship between the temporal and spatial distributions of landscape ecological risk and topography was analyzed by means of the distribution index method. [Results] ① Since 2000
land use transformation based on the productive-living-ecological space in the Hongshui River basin was characterized by a reduction in the production and ecological space and a rapid increase in the living space. The contribution rates of regional landscape ecological risk changes caused by the transfer of different land use types were different. ② During the period from 2000 to 2020
the overall landscape ecological risk showed a moderate trend
and the landscape ecological risk in the southern part of the Hongshui River basin was generally better than in the northern part. ③ From the distribution of landscape ecological risk on the terrain gradient
the degree of landscape ecological risk was inversely proportional to the terrain gradient. In addition
the landscape ecological risk in the non-karst area and pure karst area was lower than that in the subkarst area. [Conclusion] Although the landscape ecological risk in the Hongshui River basin has improved
some landscape ecological problems are still prominent
and it will be necessary to strengthen the management and protection of the ecological environment.
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