| 引用本文: | 王立川,孙栋元,马亚丽,等.甘肃省水土资源承载力时空演变及耦合协调分析[J].灌溉排水学报,2025,44(6):118-127. |
| WANG Lichuan,SUN Dongyuan,MA Yali,et al.甘肃省水土资源承载力时空演变及耦合协调分析[J].灌溉排水学报,2025,44(6):118-127. |
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| 摘要: |
| 【目的】分析甘肃省水土资源承载力的时空演变特征及耦合协调状况，为区域水土资源可持续利用提供技术支撑。【方法】基于甘肃省2000—2022年水土资源数据，采用生态足迹法和耦合协调度对甘肃省各市（州）水土资源进行耦合协调分析。【结果】①2000—2022年，甘肃省人均水资源生态足迹和生态承载力呈显著且频繁的波动。2000年人均耕地面积达到最高值0.793 hm2/人，2019年降至最低值0.687 hm2/人。甘肃省人均水资源生态足迹在空间上呈西北部高、东南部低的空间格局。②甘肃省人均土地资源生态足迹和生态承载力呈先减少后增加的趋势，增长速度逐渐减缓。甘肃省人均土地资源生态足迹呈西北部相对较高、东南部相对较低的空间分布特点。③甘肃省人均水土资源生态足迹和承载力耦合程度逐年增加，耦合协调度介于0.5~0.9，表现出良好的协调性。【结论】通过加强水土资源耦合管理和实施区域差异化保护措施，可以有效提高水土资源承载能力，促进甘肃省水土资源可持续发展。 |
| 关键词: 生态足迹模型；水土资源；耦合协调度；甘肃省 |
| DOI：10.13522/j.cnki.ggps.2024256 |
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| Spatiotemporal evolution and interaction of soil and water resource carrying capacities in Gansu Province |
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WANG Lichuan, SUN Dongyuan, MA Yali, WU Lanzhen, CUI Yanqiang, SHU Heping, WANG Xingfan
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College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070, China
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| Abstract: |
| 【Objective】Gansu Province, with its unique geographic and climatic conditions, faces significant challenges in sustainable use of its soil and water resources. This paper analyzes the spatiotemporal variation interaction of soil and water resource carrying capacities in the province, with the aim of informing improved resource management and promoting sustainable development.【Method】Data on soil and water resources from 2000 to 2022 were used to assess their spatiotemporal variation and coupling coordination at the municipal and prefectural levels. The ecological footprint model and the coupling coordination degree model were applied for quantitative analysis.【Result】① Temporally, the per capita ecological footprint and carrying capacity of water resources in the province fluctuated significantly over the study period. The highest per capita water ecological footprint was 0.789 hm2 in 2004, and the lowest was 0.687 hm2 in 2019. Spatially, water resource footprints were generally higher in the northwest and lower in the southeast. ② For land resources, the per capita ecological footprint and carrying capacity first declined and then gradually increased over time. Spatially, the pattern mirrored that of water resources, with higher footprints in the northwest and lower footprints in the southeast. ③ The coupling degree between the per capita ecological footprint and the carrying capacities of soil and water resources showed a steady increase, ranging from 0.5 to 0.9. This indicates a transition from weak to moderate and strong coordination levels.【Conclusion】Enhancing the integrated management of soil and water resources, along with the implementation of region-specific protection strategies, is essential for improving carrying capacity and ensuring the sustainable use of soil and water resources in Gansu Province. |
| Key words: ecological footprint model; soil and water resources; coupling coordination degree; Gansu Province |
