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林草资源研究 ›› 2025›› Issue (1): 126-136.doi: 10.13466/j.cnki.lczyyj.2025.01.014

• 技术应用 • 上一篇    下一篇

利川市岩溶区土壤侵蚀与石漠化耦合协调及驱动因素分析

孙智杰1,2(), 胡爔平1,2, 何博轩3, 张贤亮4, 邵远爻1,2, 廖媛1,2, 孙林山3()   

  1. 1.资源与生态环境地质湖北省重点实验室,武汉 430034
    2.湖北省地质环境总站,武汉 430034
    3.湖北省太子山林场管理局,湖北 京山 431822
    4.中国地质调查局成都地质调查中心,成都 610218
  • 收稿日期:2025-01-10 修回日期:2025-02-10 出版日期:2025-02-28 发布日期:2025-08-06
  • 通讯作者: 孙林山,高级工程师,主要研究方向为森林资源管理。Email:newjazzy@hotmail.com
  • 作者简介:孙智杰,工程师,主要研究方向为生态环境评估。Email:526330152@qq.com
  • 基金资助:
    湖北省地质局生态环境地质项目“湖北省流域生态环境地质综合调查评价与监测”(42000024622T000000421);湖北省地质局生态环境地质项目“湖北省流域底图单元生态环境地质综合区划”(42000023622T000000177)

Analysis of the coupling coordination and driving effects of soil erosion and rocky desertification in the karst area of Lichuan City

SUN Zhijie1,2(), HU Xiping1,2, HE Boxuan3, ZHANG Xianliang4, SHAO Yuanyao1,2, LIAO Yuan1,2, SUN Linshan3()   

  1. 1. Hubei Key Laboratory of Resources and Eco-Environment Geology,Wuhan 430034,China
    2. Geological Environmental Center of Hubei Province,Wuhan 430034,China
    3. Taizi Mountain Forest Farm Administration of Hubei Province,Jingshan 431822,Hubei,China
    4. Chengdu Geological Survey Center,China Geological Survey,Chengdu 610218,China
  • Received:2025-01-10 Revised:2025-02-10 Online:2025-02-28 Published:2025-08-06

摘要: 探究土壤侵蚀与石漠化的空间分布特征、关联作用及其驱动因素,对岩溶区的生态保护与修复决策具有参考价值和实践意义。以湖北省利川市为研究对象,采用修正的通用土壤流失模型、石漠化指数、空间自相关分析和耦合协调模型,分析土壤侵蚀与石漠化的空间分布格局及其耦合协调关系,并利用地理探测器探测其驱动因素。结果表明:1)利川市岩溶区土壤侵蚀程度以中度及以下等级为主,土壤侵蚀热点区主要集中在中部、西部及南部的部分地区;2)石漠化程度以中度石漠化为主,热点区广泛分布;强烈土壤侵蚀区域的石漠化程度最为严重,重度石漠化区域的土壤侵蚀程度最为严重;3)土壤侵蚀与石漠化表现出显著的空间正相关性,且二者之间存在较弱的双变量空间正相关关系;4)土壤侵蚀与石漠化总体处于高耦合、低协调的状态,表现为低水平上的相互制约关系;5)土壤侵蚀的主导因子为植被盖度,石漠化的主导因子为岩石裸露率,因子间的交互作用具有一定的空间叠加效应。

关键词: 岩溶区, 土壤侵蚀, 石漠化, 修正的通用土壤流失模型, 空间自相关, 耦合协调

Abstract:

Investigating the spatial distribution characteristics,correlation,and driving factors of soil erosion and rocky desertification is of significant decision-making and practical value for the ecological protection and restoration of karst areas. With Lichuan City,Hubei Province as the research object,by using the RUSLE model,rocky desertification index,spatial autocorrelation analysis,and coupling coordination model,the spatial distribution patterns and coupling coordination relationships of soil erosion and rocky desertification were analyzed. The driving factors are detected using the GeoDetector. The results show that soil erosion in the karst area of Lichuan City is mainly characterized by moderate and lower levels,hot spots are mainly concentrated in parts of the central,western and southern regions. Rocky desertification is predominantly at the moderate level,and the hot spots are widely distributed throughout the area. The degree of rocky desertification is most severe in areas with intense soil erosion,and the degree of soil erosion is most severe in areas with severe rocky desertification. Both soil erosion and rocky desertification exhibit significant positive spatial autocorrelation,and there is a weak bivariate positive spatial correlation between them. Soil erosion and rocky desertification are generally in a state of high coupling but low coordination,characterized by mutual constraints at a low level. The dominant factor for soil erosion is vegetation cover,while the dominant factor for rocky desertification is rock exposure rate,with their interactions having a certain spatial overlap effect.

Key words: karst area, soil erosion, rocky desertification, revised universal soil loss equation model, spatial autocorrelation, coupling and coordination

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