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3 岩溶槽谷区石漠化在不同海拔的空间分布
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Tab. 3 Spatial distribution of rocky desertification in different slopes in karst trough area
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海拔(m)
(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
(%) | | 0~400(51526.7) | 2048.6(17.2%) | 865.1(10.0%) | 47.8(5.9%) | 2961.5 | 5.7 | | 400~800(27745.2) | 5299.6(44.6%) | 3922.9(45.5%) | 563.8(63.3%) | 9786.3 | 35.3 | | 800~1200(35672.4) | 3520.5(29.6%) | 2642.2(30.7%) | 165.6(20.4%) | 7586.0 | 21.3 | | > 1200(17175.6) | 1026.1(8.6%) | 1185.6(13.8%) | 35.9(4.4%) | 2247.6 | 13.1 | | 总计(132119.9) | 11894.8(100%) | 8615.8(100%) | 813.1(100%) | 21323.7 | 16.1 |
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