| 黄土丘陵沟壑区第二副区山坡地土壤侵蚀特征研究 |
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| 引用本文： | 王占礼,邵明安.黄土丘陵沟壑区第二副区山坡地土壤侵蚀特征研究[J].水土保持研究,1998,5(4):11-21,97. |
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| 作者姓名： | 王占礼 邵明安 |
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| 作者单位： | 中国科学院水土保持研究所, 陕西杨陵, 7121000 |
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| 摘 要： | 在广泛收集资料的基础上,对黄土丘陵沟壑区第二副区山坡地土壤侵蚀特征以往的研究结论进行了综合分析,结果表明:(1)影响该区山坡地土壤侵蚀的主要因素为降雨、地形及土地利用.(2)该区山坡地土壤侵蚀主要类型为水蚀,主要方式为溅蚀、片蚀、细沟及浅沟侵蚀.(3)该区多年平均侵蚀模数为8373t/km2,其中以坡度大于25°的耕地和植被盖度小于10%的荒草地侵蚀强度最大,年侵蚀模数为18000t/km2,坡度为15～25°的耕地及植被盖度为10%～30%的林草地年侵蚀模数分别为15000t/km2和12000t/km2.
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| 关 键 词： | 黄土丘陵沟壑区 第二副区 山坡地 土壤侵蚀特征 |
Soil Erosion Characters of Slope Land in the 2nd Sub-region of Loess Plateau |
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| Wang Zhanli,Shao Ming’an.Soil Erosion Characters of Slope Land in the 2nd Sub-region of Loess Plateau[J].Research of Soil and Water Conservation,1998,5(4):11-21,97. |
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| Authors: | Wang Zhanli Shao Ming’an |
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| Institution: | Institute of Soil and Water Conservation, Chinese Academy of Sciencesand Ministry of Water Resources Yangling Shanxi 7l210O |
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| Abstract: | On the basis of collected information about erosion in the 2nd Sub-region of LoessPlateau,the research results was revealed:(1) the main factors affecting soil erosion in slopeland were precipitation,topography and land use,(2) the main erosion.types were splasherosion,sheet erosion.rill erosion and shallow gully erosion,(3) the annunal average erosionmodule was 8373t/km2,annunal erosion module with 25° slope land and 10% coverdegree was 18OOt/km2,annunal erosion module with 15~25° slope land and grass-forest landwith 10%~30% cover degree were 15OOt/km2 and 12OOt/km2 respectively. |
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| Keywords: | hilly-gully region Loess Plateau second sub-region slope land soil erosion character |
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