水土保持通报2025，Vol.45Issue(2)：73-80,101,9.DOI:10.13961/j.cnki.stbctb.2025.02.009
漓江东岸冠岩地下河流域果园石漠化分布特征及其演变规律
Distribution and evolution of orchard rocky desertification in Guanyan underground river basin along eastern bank of Lijiang River
摘要
Abstract
[Objective]The land use and the evolution process of orchard rocky desertification in Guanyan underground river basin along the eastern bank of Lijiang River from 2010 to 2020 were analyzed,and the distribution characteristics and internal evolution law of orchard rocky desertification landscape pattern were explored,so as to provide geological basis and decision—making suggestions for ecological protection and restoration and sustainable utilization of landscape resources in this area and even in Lijiang River basin.[Methods]Taking the land use type and rocky desertification in Guanyan underground river basin as the research object,based on the second and third national land survey data and remote sensing image data,the GIS technology platform and area transfer matrix model were used to analyze the evolution law of orchard rocky desertification in the study area.[Results]① Cultivated land,orchards,and forest land were the main land uses in the underground river basin.The areas of cultivated land and grassland decreased,while the areas of orchard,forest land,water,and other land increased.② The area of rocky desertification in orchards in the Guanyan underground river basin decreased by 1.34 km2 from 2010 to 2020,a reduction of 7.90％.Overall,the rocky desertification was continuously decreasing in the orchards.However,the areas affected by moderate and severe rocky desertification increased.A total of 1.51 km2 of nonrocky desertification area transformed into rocky desertification.③Ina 1.79 km2 area,the orchard rocky desertification decreased;however,the desertification worsened in a 1.78 km2 area from 2010 to 2020.[Conclusion]Overall,the rocky desertification in orchards within the watershed was decreases.However,rocky desertification was increasing and expanding to some new areas,which mainly manifested as the spread of rocky desertification in the orchard and in some forested areas.Therefore,the focus of ecological environmental restoration and protection in the underground Guanyan river basin should be on strengthening the scientific planting and management of existing orchards,gradually restoring shrubs and other vegetation,vigorously developing agroforestry planting methods,and preventing further increases in rocky desertification through the application of on existing rocky desertification control measures.关键词
果园石漠化/土地利用/转移矩阵/石漠化演变/冠岩地下河流域/漓江Key words
rocky desertification of orchards/land use/transfer matrix/rocky desertification evolution/Guanyan underground river basin/Lijiang River分类
资源环境引用本文复制引用
李航,罗为群,张谭锋,涂纯..漓江东岸冠岩地下河流域果园石漠化分布特征及其演变规律[J].水土保持通报,2025,45(2):73-80,101,9.基金项目
国家重点研发计划课题"峰丛洼地关键带水土资源生态调控技术"(2022YFF1300702) （2022YFF1300702）
桂林市重大专项计划"漓江核心区喀斯特石漠化修复及特色药业关键技术研究与示范"(20220102-1) （20220102-1）
中国地质调查局项目(DD20190502,DD20230453) （DD20190502,DD20230453）
2023年创新平台和人才计划"气候变化条件下典型岩溶区土壤固碳效率提升关键技术研究"(20230116-3) （20230116-3）
