地理学报 ›› 2006, Vol. 61 ›› Issue (3): 241-248.doi: 10.11821/xb200603002

• 地貌 • 上一篇    下一篇

侯马盆地冲积扇及其流域地貌发育规律

李新坡1, 莫多闻1, 朱忠礼2   

  1. 1. 北京大学环境学院,北京100871;
    2. 北京师范大学地理学与遥感科学学院,北京100875
  • 收稿日期:2005-08-26 修回日期:2005-11-14 出版日期:2006-03-25 发布日期:2006-03-25
  • 作者简介:李新坡 (1974-), 男, 博士。主要从事地貌学与环境演变研究。E-mail: lixp@pku.edu.cn
  • 基金资助:

    国家自然科学基金项目 (40271013); 教育部博士点基金项目 (99000149)

Developments of Alluvial Fans and Their Catchments in Houma Basin

LI Xinpo1, MO Duowen1, ZHU Zhongli2   

  1. 1. College of Environmental Sciences, Peking University, Beijing 100871, China;
    2. School of Geography, Beijing Normal University, Beijing 100875, China
  • Received:2005-08-26 Revised:2005-11-14 Online:2006-03-25 Published:2006-03-25
  • Supported by:

    National Natural Science Foundation of China, No.40271013; Supporting Project of The Ministry of Education on Doctorial Discipline, No.99000149

摘要:

根据从DEM数据中提取的侯马盆地冲积扇及其流域的多项地貌指标,分析了各地貌指标的空间分布规律,并通过地貌指标的空间分布曲线与山前地形高程曲线形态的对比以及地貌指标相关性分析来揭示冲积扇及其流域地貌的发育规律。结果表明,在侯马盆地相对隆起部位的冲积扇及其流域的地貌指标与在盆地凹陷部位的冲积扇及其流域的地貌指标有较大差异;流域地貌指标的空间分布受到盆地边界断层构造活动性的影响;冲积扇的发育主要受到流域规模、山前构造活动以及盆地基准面等多种因素共同的影响;流域内岩性的差异不是造成研究区域内冲积扇地貌差异的主要因素。

关键词: 冲积扇, 流域, 地貌, 侯马盆地, 山西地堑

Abstract:

We collected indexes of alluvial fans and their drainage basins from DEM data, and analyzed distribution of these indexes. By comparison of distribution curves of these indexes with elevation distribution curve of piedmont landforms, we did some research on the developments of alluvial fans and their drainage basins. As a result, we find that the alluvial fans and their drainage basins in the uplift region of Houma basin differ greatly from those in the sunken region; distributions of drainage basin indexes are mainly influenced by tectonic activity of boundary fault; alluvial fans are influenced by factors of drainage basin, tectonic movement of boundary fault and base level together; and lithological difference between rocks and underlying drainage basins is not the main factor leading to difference in alluvial fans in the study area.

Key words: alluvial fan, drainage basin, landform, Houma basin, Shanxi graben