景观理论在淅川县石质荒漠化治理中的应用

Application of Landscape Theory in the Treatment of Stone Desertification in Xichuan County

石质荒漠化是严重水土流失产生的后果,也是一种生态过程,景观格局和石质荒漠化关系密切,利用景观格局理论指导石质荒漠化治理具有重要的理论和现实意义。以淅川县为研究区,探讨了景观格局理论在石质荒漠化生态过程中的多尺度对应关系,利用水土保持景观格局理论揭示淅川县坡-沟尺度、小流域尺度、区域尺度石质荒漠化生态过程,通过对石质荒漠化景观格局的分析,将石质荒漠化景观划分为5种不同的类型,分别构建了石质荒漠化景观综合治理模式和县域尺度生态治理模式,并提出了坡-沟尺度和小流域尺度的综合治理技术措施。

Stone desertification is a kind of soil erosion and is also an ecological process. Landscape pattern and stone desertification are closely related. Using landscape pattern theory to guide stone desertification control has great theoretical and practical significance. In this study,Xichuan County was taken as the research area,the multi-scale correspondence of landscape pattern theory in the ecological process of stone desertification was discussed. Based on the theory of landscape pattern of soil and water conservation,this paper revealed the ecological process of stone desertification in small watershed scale region of slope-gully scale in Xichuan County. By analyzing the landscape pattern of stone desertification,the stone desertification landscape was divided into five different types of stone desertification landscape. The comprehensive management model of stone desertification landscape and county scale ecological management model of each type of area were constructed respectively and the comprehensive management technical measures of small watershed scale and slope-gully scale were put forward.