| 西安白鹿塬约85OO年来土壤侵蚀研究 |
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| 引用本文： | 杜娟,赵景波.西安白鹿塬约85OO年来土壤侵蚀研究[J].干旱区资源与环境,2004,18(2):136-140. |
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| 作者姓名： | 杜娟 赵景波 |
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| 作者单位： | [1]陕西师范大学地理系西安710062 [3]陕西师范大学西北历史环境与经济社会发展研究中心西安710062 |
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| 基金项目： | 教育部人文社科重点研究基地重点招标项目(OIJAZJD770 0 14 )，中国科学院地球环境研究所黄土与第四纪地质国家重点实验室项目 (SKL L QG0 3 0 6) |
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| 摘 要： | 本文根据作者的观察和测量，对西安市白鹿塬塬区的土壤侵蚀状况进行了研究。研究表明，白鹿塬塬区确定土壤侵蚀的主要依据是土层厚度的变化，并非侵蚀面。塬区侵蚀是塬边侵蚀较强，向塬里侵蚀逐渐减弱。塬面上高地侵蚀弱，低地侵蚀强，暂时性线状流水长期汇集而成的冲沟对黄土塬区土壤的侵蚀更加强烈。气候对土壤侵蚀也有影响，冷干和温湿气候均会产生土壤侵蚀，冷干期侵蚀量比温湿期大，前者侵蚀厚度比后者大7倍多。
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| 关 键 词： | 白鹿塬 土壤侵蚀 西安市 侵蚀厚度 |
| 文章编号： | 1003-7578(2004)02-136-05 |
| 修稿时间： | 2003年3月6日 |
Study on Soil Erosion Since 8500 Years in Bailu Tableland of Xi'an |
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| DU Juan \ ZHAO Jing-bo ,.Study on Soil Erosion Since 8500 Years in Bailu Tableland of Xi''''an[J].Journal of Arid Land Resources and Environment,2004,18(2):136-140. |
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| Authors: | DU Juan \ ZHAO Jing-bo |
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| Institution: | DU Juan 1\ ZHAO Jing-bo 1,2,3 |
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| Abstract: | Based on auther's observation and survey,some important regularities about soil erosive intensity in the area of Bailu tableland in Xi'an are got in this paper.The study shows that the identified sign of soil erosion of Bailu tableland are not erosive surface,but is the change of soil's thickness.The erosive regularity of erosion on tableland is that from tableland side to tableland inside,soil erosion is stronger in high places than in low places.Soil erosion of Loess tableland inside produced by a long period of collection of temporary running water in ditch are very strong.Soil erosion also was affected by climate,it can occurred both in cool and dry period and in warm and wet period,and the amount of erosion is bigger in cool and dry period than in warm and wet period,and the former is 7 times bigger than the latter in erosive thickness. |
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| Keywords: | Bailu tableland soil erosion erosive thickness identified sign |
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