地理科学 ›› 2018, Vol. 38 ›› Issue (4): 610-617.doi: 10.13249/j.cnki.sgs.2018.04.015
胡刚1,2(), 宋慧1, 石星军3, 张明礼4, 刘修军1, 张绪良1
收稿日期:
2017-04-27
修回日期:
2017-08-22
出版日期:
2018-04-20
发布日期:
2018-04-20
作者简介:
作者简介:胡刚(1976-),男,山东滨州人,博士,副教授,主要从事土壤侵蚀、环境演变、水土资源利用与3S应用研究。E-mail:
基金资助:
Gang Hu1,2(), Hui Song1, Xingjun Shi3, Mingli Zhang4, Xiujun Liu1, Xuliang Zhang1
Received:
2017-04-27
Revised:
2017-08-22
Online:
2018-04-20
Published:
2018-04-20
Supported by:
摘要:
通过RUSLE模型对卧虎山水库流域土壤侵蚀进行全面评价验证和总结。结果表明:① 水库流域平均侵蚀模数为462 t/(km2·a),该数值与通过水库淤积等资料推算评估结果基本一致,表明本研究结果具有较高的可信度;水库流域年均侵蚀量达到2.6×106t,其中高于容许土壤流失量的面积为176 km2,占到流域总面积的31.51%。从不同侵蚀级别来看,占流域面积27.77%的轻度侵蚀,对流域侵蚀总量的贡献率为54.64%; 面积占比3.74%的中度及以上侵蚀,侵蚀量贡献率达到30.94%。② 流域内土壤侵蚀空间差异较大,回归分析发现地形因子是导致各子流域土壤侵蚀模数差异的主要因素;就土地利用类型而言,旱地和农村居民点是流域内的主要侵蚀土地利用类型;流域内土壤侵蚀模数随着坡度增加呈现相应增大趋势,8°~25°坡度段面积比例不仅最大,而且侵蚀量占比最高,是水库流域的主要侵蚀坡度段。
中图分类号:
胡刚, 宋慧, 石星军, 张明礼, 刘修军, 张绪良. 基于RUSLE的卧虎山水库流域土壤侵蚀特征分析[J]. 地理科学, 2018, 38(4): 610-617.
Gang Hu, Hui Song, Xingjun Shi, Mingli Zhang, Xiujun Liu, Xuliang Zhang. Soil Erosion Characteristics Based on RUSLE in the Wohushan Reservoir Watershed[J]. SCIENTIA GEOGRAPHICA SINICA, 2018, 38(4): 610-617.
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