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1.甘肃农业大学管理学院,兰州 730070
2.武汉理工大学安全科学与应急管理学院,武汉 430070
Received:31 January 2026,
Revised:2026-03-24,
Accepted:30 March 2026,
Published:28 June 2026
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李晓丹,杨骏轶,王全喜,等.基于SRP模型的黄河流域甘肃段生态脆弱性评价[J].水土保持学报,2026,40(3):266-277.
LI Xiaodan, YANG Junyi, WANG Quanxi, et al. Ecological vulnerability assessment of Gansu section of the Yellow River basin based on SRP model[J]. Journal of Soil and Water Conservation,2026,40(3):266-277.
李晓丹,杨骏轶,王全喜,等.基于SRP模型的黄河流域甘肃段生态脆弱性评价[J].水土保持学报,2026,40(3):266-277. DOI: 10.13870/j.cnki.stbcxb.2026.03.042. CSTR: 32310.14.stbcxb.2026.03.042.
LI Xiaodan, YANG Junyi, WANG Quanxi, et al. Ecological vulnerability assessment of Gansu section of the Yellow River basin based on SRP model[J]. Journal of Soil and Water Conservation,2026,40(3):266-277. DOI: 10.13870/j.cnki.stbcxb.2026.03.042. CSTR: 32310.14.stbcxb.2026.03.042.
目的
2
评估黄河流域甘肃段生态脆弱性时空演变特征,分析其生态敏感性、恢复力与压力度的动态变化,为区域生态保护与修复提供科学依据。
方法
2
聚焦黄河流域甘肃段,采用SRP模型构建生态评价指标体系,运用熵值法来确定各项指标的权重,对该研究区域的生态脆弱性进行综合评价。
结果
2
1)2000年、2010年、2020年黄河流域甘肃段的生态脆弱性均呈现“南高北低”的格局,从面积上来看,以中度脆弱为主,在3期数据中分别占总面积的32.03%、45.33%、55.97%。2)通过分析研究区生态脆弱性转移矩阵可知,随着时间的推移,黄河流域甘肃段中度脆弱区域面积上升23.94%,而微度脆弱与轻度脆弱分别减少19.44%和4.30%,总体生态脆弱性呈缓慢上升态势。3)通过对研究区各市州的生态脆弱性分析可知,白银市的生态脆弱性较低,甘南藏族自治州的生态脆弱性较高,其中,白银市、庆阳市生态脆弱性从微度脆弱转为轻度脆弱,平凉市从轻度脆弱转为中度脆弱。
结论
2
黄河流域甘肃段生态脆弱性以中度脆弱为主,但局部区域有所改善,需加强水土流失治理与植被恢复,推进差异化生态修复策略,以提升区域生态系统稳定性与可持续性。
Objective
2
This study aims to evaluate the spatiotemporal evolution of ecological vulnerability in the Gansu section of the Yellow River basin, and to analyze the dynamic changes in ecological sensitivity, resilience, and pressure, so as to provide a scientific basis for regional ecological protection and restoration.
Methods
2
This study focuses on the Gansu section of the Yellow River basin and employs the SRP model to construct an ecological evaluation index system. The Entropy Evaluation Method is used to determine the weight of each indicator, and a comprehensive evaluation of the ecological vulnerability of the study area is conducted.
Results
2
1) In 2000, 2010, and 2020, the ecological vulnerability of the Gansu section of the Yellow River basin showed a pattern of "high in the south and low in the north", and the area was mainly moderately vulnerable, accounting for 32.03%, 45.33%, and 55.97% of the total area in the three periods. 2) Over time, by analyzing the ecological vulnerability transfer matrix in the study area, it can be seen that, the area of moderately vulnerable areas in the Gansu section of the Yellow River basin increased by 23.94%, while the slightly vulnerable and mild vulnerable areas decreased by 19.44% and 4.3%, respectively. 3)Through the analysis of the ecological vulnerability of cities and prefectures in the study area, it can be seen that the ecological vulnerability of Baiyin area is low, and the ecological vulnerability of Gannan area is high, among which the ecological vulnerability of Baiyin and Qingyang area has changed from slight vulnerability to mild vulnerability, and Pingliang area has changed from slight vulnerability to moderate vulnerability.
Conclusion
2
Ecological vulnerability in the Gansu section of the Yellow River basin is dominated by moderate vulnerability, with a continuously increasing proportion. Although certain local areas have improved, the region as a whole remains under pressure of ecological degradation, with pronounced spatial heterogeneity. Ecological vulnerability in the Gansu reach of the Yellow River basin is primarily of moderate intensity, albeit with localized areas exhibiting improvement. It is necessary to strengthen soil erosion control and vegetation restoration, and to implement differentiated ecological restoration strategies to enhance ecosystem stability and sustainability.
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