| 陕北典型地区乡村聚落水蚀泥沙规律的初步研究 |
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| 引用本文： | 岳大鹏,甘枝茂.陕北典型地区乡村聚落水蚀泥沙规律的初步研究[J].地域研究与开发,2008,27(3):88-93. |
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| 作者姓名： | 岳大鹏 甘枝茂 |
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| 作者单位： | 陕西师范大学,旅游与环境学院,西安,710062 |
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| 摘 要： | 通过定位观测资料的分析,发现陕北多沙粗沙区乡村聚落的平均年侵蚀强度达5434.3t/km2,户间道路、户间空地、庭院的平均侵蚀强度分别达7348t/km2.6873.2 t/km2,2081.7t/km2.除庭院属轻度级侵蚀外,其它已达强度级侵蚀.同时延安的户间道路(14190.8t/km2),榆林的户间空地(13547.4t/km2),已达极强度侵蚀.应加强研究和防治.水蚀泥沙的粒度以0.01～0.05 mm的粗粉沙和0.001～0.005 mm的粘粒为主,分别占到43.98%和19.81%,≥0.05mm的粗泥沙含量明显小于聚落以外的坡面,而且区域变化比较明显,从南到北,细粒成分愈来愈少,粗粒成分越来越多;与土壤粒度相比,粗泥沙水蚀系数在庭院、户间道路、户间空地分别达到0.54,0.55,0.75,平均为0.61.
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| 关 键 词： | 乡村聚落 水蚀 泥沙 多沙粗沙区 陕北 陕北 地区 乡村聚落 水蚀泥沙 规律 研究和防治 Shaanxi Province Area Sediment Settlements Rural Water Erosion Study 系数 粗泥沙 土壤粒度 粗粒 成分 细粒 比较 |
| 文章编号： | 1003-2363(2008)03-0088-06 |
| 修稿时间： | 2007年10月22 |
Primary Study on Water Erosion Sediment of Rural Settlements in the Much and Coarse Sediment Area of North Shaanxi Province |
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| YUE Da-peng,GAN Zhi-mao.Primary Study on Water Erosion Sediment of Rural Settlements in the Much and Coarse Sediment Area of North Shaanxi Province[J].Areal Research and Development,2008,27(3):88-93. |
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| Authors: | YUE Da-peng GAN Zhi-mao |
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| Institution: | YUE Da-peng,GAN Zhi-mao (College of Tourism , Environment Science,Shaanxi Normal University,Xi'an 710062,China) |
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| Abstract: | On the basis of field-spot observation,it is found that the average annual erosion intensity of rural settlements in the much and coarse sediment area of north Shaanxi is 5 434.3t/km2.The average annual erosion intensity in roads,open space and yards is 7324t/km2,6873.2t/km2 and 2081.7t/km2 separately,reaching the very serous level of erosion except yard erosion.And the annual erosion intensity of Yan'an road and Yulin open space is up to 14190.8 and 13547.4t/km2,reaching the extremely serious level.It is u... |
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| Keywords: | rural settlements water erosion sediment sandy grit northern Shaanxi |
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