地理科学进展 ›› 2003, Vol. 22 ›› Issue (3): 229-241.doi: 10.11820/dlkxjz.2003.03.002

• 论文 • 上一篇    下一篇

复合型泥沙灾害过程特征及区域划分

金德生, 师长兴, 陈浩, 张欧阳   

  1. 中国科学院地理科学与资源研究所,北京100101
  • 收稿日期:2003-03-01 修回日期:2003-04-01 出版日期:2003-05-24 发布日期:2011-04-14
  • 作者简介:金德生(1940-),男,研究员。曾在美国科罗拉多州立大学地球科学系进修。主要从事流水地貌研究及实验模拟。
  • 基金资助:

    国家自然科学重大基金项目(59890200);国家自然科学基金项目(4880008)资助.

A Study on Process Character and Zoning of Composite Sediment Disasters

JIN Desheng, SHI Changxing, CHEN Hao, ZHANG Ouyang   

  1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2003-03-01 Revised:2003-04-01 Online:2003-05-24 Published:2011-04-14

摘要: 本文给出了复合型泥沙灾害的定义,从时间序列角度出发,表述了复合型泥沙灾害过程的复杂性、周期性、耦合性及层次性等特征,并对泥沙灾害的区域关联性与区域差异,区域划分与分区特征作了研究。根据复合泥沙灾害过程发育的大环境及基本复合过程进行划分,分为东部平原-沿海地带复合泥沙灾害过程地区、中部高平原低山复合泥沙灾害过程地区、西北干旱高中山盆地复合泥沙灾害过程地区、青藏高寒山原复合泥沙灾害过程地区4个一级区;依据泥沙灾害复合过程的相似性及差异性,划分11个复合泥沙灾害过程二级亚区。

关键词: 复合, 过程特征, 泥沙灾害, 区划

Abstract: In this paper the composite sediment disaster process is def ined as a compound of sediment disasters, which are formed under a given natural condit ion and by human activities in a certain space and time span and are with inhere ntly interrelated Generally speaking, it can be divided into two main types ba sed on its forming dynamics One is naturally carried out and the other is huma n induced From time series viewpoint, it is explained that the composite sedim ent disaster has complexity, periodicity, anatomists and administrative levels The regional characteristics of composite sediment disaster process have also been studied They are relatives, differences and dividing characters Based o n principle environmental features and basic composite processes the whole country can be divided into 4 main regions of composite sediment disasters They are ( Ⅰ) the eastern China plain and coast zone, (Ⅱ) the middle China plateau and lo wer mountainous area, (Ⅲ) the north~western China arid high and middle mountai nous and huge basin area, and (Ⅳ) the Qinghai Xizang Plateau and highest mount ainous area According to composite sediment similarities and differences the 1 1 sub regions has been divided as follows, Ⅰ1 Sub region of flood type of co mposite sediment disasters in the north eastern China,Ⅰ2 Sub region of floo d type of composite sediment disasters in the northern China and lower and middl e Yangtze River plain,Ⅰ3 Sub region of flood storm tide type of composite s ediment disasters along coast in the south eastern China;Ⅱ1 Sub region of a rid water soil lose type of composite sediment disasters on Loess Plateau, Ⅱ 2 Sub region of flood slide debris flow type of composite sediment disasters of Sichuan, Guizhou, west Hunan and Hubei, Ⅱ3 Sub region of slide debris fl ow type of composite sediment disasters of west Sichuan and Yunnan; Ⅲ1 Sub r egion of composite sediment disasters in Inner Mongolia, Ⅲ2 Sub region of wi ndy sand type of composite sediment disasters in Xinjiang and Gansu, Ⅲ3 Sub region of slide debris flow type of composite sediment disasters in Tianshan mountain;Ⅳ1 Sub region of slide debris flow type of composite sediment disa sters of the highest mountain in the south eastern Xizang, and Ⅳ2 Sub regi on of slide debris flow type of composite sediment disasters of high.

Key words: composite, processes character, sediment disaster, zon ing

中图分类号: 

  • X43