基于GIS与地理探测器的岩溶槽谷石漠化空间分布及驱动因素分析
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王正雄,蒋勇军,张远嘱,段世辉,刘九缠,曾泽,曾思博
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Spatial distribution and driving factors of karst rocky desertification based on GIS and geodetectors
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WANG Zhengxiong,JIANG Yongjun,ZHANG Yuanzhu,DUAN Shihui,LIU Jiuchan,ZENG Ze,ZENG Sibo
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表1 岩溶槽谷区石漠化在不同岩性的空间分布
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Tab. 1 Distribution of rocky desertification in different types of lithology in karst trough area
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岩性类型
(面积/km2) | 轻度石漠化
(km2) | 中度石漠化
(km2) | 重度石漠
(km2) | 石漠化总面积(km2) | 发生率
(%) | | 连续性灰岩(39995.2) | 4722.9(39.7%) | 4771(55.4%) | 412.9(50.8%) | 9906.8 | 24.8 | | 连续性白云岩(19153.2) | 1383.3(11.6%) | 986.5(11.4%) | 228.5(28.1%) | 2598.3 | 16.1 | | 灰岩与白云岩互层(23568.7) | 1860.8(15.6%) | 1250.5(14.5%) | 82.1(10.1%) | 3193.4 | 12.0 | | 碳酸盐岩夹碎屑岩(49402.8) | 3927.8(33.1%) | 1607.8(18.7%) | 89.6(11.0%) | 5625.2 | 11.4 | | 总计(132119.9) | 11894.8(100%) | 8615.8(100%) | 813.1(100%) | 21323.7 | 16.1 |
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