摘要
本研究以土壤侵蚀较为严重的海伦市为例,基于中国土壤流失方程(Chinese Soil Loss Equation,CSLE)对土壤侵蚀程度与时空变化情况进行定量分析,着重探讨降水与土地利用格局变化对土壤侵蚀的影响。研究结果表明,(1)研究区2000—2020年土壤侵蚀面积增加了57.82 km2,且土壤侵蚀强度均有从侵蚀较低等级向较高等级变化的趋势。(2)2000—2020年不同土地利用类型土壤侵蚀差异显著,侵蚀面积表现为耕地>其他用地>林地>建设用地>水域。(3)2000—2020年不同等级的平均降水量土壤侵蚀总面积变化不明显,但同一等级的平均降水量的土壤侵蚀率逐渐降低。
Based on the Chinese Soil Loss Equation(CSLE),this study quantitative analysis the spatial and temporal variation of soil erosion in Hailun,China,the effects of precipitation and land use pattern change on soil erosion were discussed.The results showed that,(1)the area of soil erosion increased by 57.82 km2 from 2000 to 2020,and the area of soil erosion tended to deteriorate to a higher level of soil erosion intensity.(2)The effects of soil erosion on different land types from 2000 to 2020 were significantly different.Soil erosion area of different land use types:cultivated land>other land>woodland>construction land>waters.(3)From 2000 to 2020,the total area of erosivity soil erosion of different grades of precipitation had no obvious change,but the erosivity soil erosion rate of the same grade of precipitation gradually decreased.
作者
韩子琳
李正则
张蕾
马静静
李苗
Han Zilin;Li Zhengze;Zhang Lei;Ma Jingjing;Li Miao(College of Geographical Science,Harbin Normal University,Harbin 150025,China)
出处
《国土与自然资源研究》
2023年第5期24-30,共7页
Territory & Natural Resources Study
基金
黑龙江省大学生创新创业训练计划项目(202110231002)。
