Distribution and evolution of orchard rocky desertification in Guanyan underground river basin along eastern bank of Lijiang River

Li Hang; Luo Weiqun; Zhang Tanfeng; Tu Chun

doi:10.13961/j.cnki.stbctb.2025.02.009

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Distribution and evolution of orchard rocky desertification in Guanyan underground river basin along eastern bank of Lijiang River

- Distribution and evolution of orchard rocky desertification in Guanyan underground river basin along eastern bank of Lijiang River
- Bulletin of Soiland Water Conservation Vol. 45, Issue 2, Pages: 73-80(2025)
- 作者机构：
  
  1. 中国地质科学院岩溶地质研究所,广西,桂林,541004
  2. 广西平果喀斯特生态系统国家野外科学观测研究站/百色平果喀斯特生态系统广西野外科学观测研究站, 广西平果,531406
  3. 自然资源部广西岩溶动力学重点实验室/联合国教科文组织国际岩溶研究中心,广西,桂林,541004
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2025.02.009
  CLC： X171.1
- Online First：16 May 2025，
  
  Published：2025
- 稿件说明：
移动端阅览
Li Hang, Luo Weiqun, Zhang Tanfeng, et al. Distribution and evolution of orchard rocky desertification in Guanyan underground river basin along eastern bank of Lijiang River[J]. Bulletin of Soiland Water Conservation, 2025, 45(2): 73-80.
DOI：

Li Hang, Luo Weiqun, Zhang Tanfeng, et al. Distribution and evolution of orchard rocky desertification in Guanyan underground river basin along eastern bank of Lijiang River[J]. Bulletin of Soiland Water Conservation, 2025, 45(2): 73-80. DOI： 10.13961/j.cnki.stbctb.2025.02.009.

摘要

[目的

]

分析漓江东岸冠岩地下河流域2010—2020年的土地利用以及果园石漠化演变过程，探究果园石漠化景观格局分布特征与内在演变规律，为该区乃至漓江流域生态保护修复与景观资源可持续利用提供地质依据与决策建议。[方法

]

以冠岩地下河流域土地利用类型以及石漠化为研究对象，基于第二次、第三次全国土地调查数据以及遥感影像数据，运用GIS技术平台和面积转移矩阵模型分析研究区果园石漠化演变规律。[结果

]

①冠岩地下河流域土地利用以耕地、果园、林地为主，其中耕地与草地面积呈现减少趋势，果园、林地、水域以及其他用地呈现增加趋势。②2010—2020年，冠岩地下河流域果园石漠化面积减少1.34 km

，减少比例为7.90%，果园石漠化状况整体表现出持续向好的良好态势，但中度石漠化与重度石漠化面积呈增加趋势，其中非石漠化转变为石漠化的面积1.51 km

。③结合冠岩地下河流域2010—2020年果园石漠化演变过程，10 a间果园石漠化改善面积为1.79 km

，恶化面积为1.78 km

。[结论

]

流域内果园石漠化总体呈现出积极改善的趋势，但局部区域存在石漠化恶化扩张或新增石漠化现象，主要表现为果园本身以及部分林地发生石漠化蔓延。因而冠岩地下河流域后期生态环境恢复与保护的重点应是加强现有果园的科学种植与管理，逐步恢复灌木林等植被，大力发展林下复合经营种植模式，在现有石漠化治理措施基础之上防止果园石漠化进一步恶化。

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. ③ In a 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

Keywords

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