| 黄土高原构造侵蚀期研究 |
| |
| 引用本文： | 杜娟,赵景波.黄土高原构造侵蚀期研究[J].陕西师范大学学报,2001,29(3):107-111. |
| |
| 作者姓名： | 杜娟 赵景波 |
| |
| 作者单位： | [1]陕西师范大学旅游与环境学院，陕西西安710062 [2]中国科学院土壤侵蚀与旱地农业国家重点实验室，陕西杨凌712100 |
| |
| 基金项目： | 国家自然科学基金资助项目(40071006);中国科学院土壤侵蚀与旱地农业国家重点实验室项目(2000W006) |
| |
| 摘 要： | 根据野外调查和实际测量资料，研究了黄土高原构造侵蚀期和期内造成的侵蚀。资料表明，黄土高原约160万年以来发生了6次构造侵蚀期，各次侵蚀期下切深度存在差别，深度变化一般在5－130m之间。黄土高原构造侵蚀期与海、湖盆地构造侵蚀期不同，它所造成的侵蚀主要限于沟谷、丘陵区和塬边。构造侵蚀期的多次发生是黄土高原分割和沟谷发育的主要原因。
|
| 关 键 词： | 黄土高原 构造侵蚀期 侵蚀阶段 下切深度 沟谷 丘陵区 塬边 土壤侵蚀 |
| 文章编号： | 1001-3857(2001)03-0107-05 |
| 修稿时间： | 2001年3月28日 |
Research of tectonic erosion periods in Loess Plateau |
| |
| DU Juan ,ZHAO Jing_bo.Research of tectonic erosion periods in Loess Plateau[J].Journal of Shaanxi Normal University: Nat Sci Ed,2001,29(3):107-111. |
| |
| Authors: | DU Juan ZHAO Jing_bo |
| |
| Institution: | DU Juan 1,ZHAO Jing_bo 1,2 |
| |
| Abstract: | According to the material of field investigation and survey, tectonic erosion periods and their erosion are studied. Material shows that the tectonic erosion periods occurred six times since 1.6 Ma.B.P. The depth eroded by each tectonic erosion period was different, it varies generality between 5 and 130 m. The tectonic erosion period is different from those occurred in sea and lake basins, and the erosion produced by the former happened mainly in river valleys, hill areas and the edge slope of table lands. The frequent occurrence of the tectonic erosion periods is not favorable to the development of the Loess Plateau, which is main factor why the Loess Plateau dissected and cleuches and rivers developed. |
| |
| Keywords: | Loess Plateau tectonic erosion periods erosion stages dissected depth |
| 本文献已被 CNKI 维普 等数据库收录！ |
