ISWC OpenIR  > 水保所知识产出(1956---)
全球河流输沙量分布格局及其影响因素
景昭伟1; 何洪鸣1,2; Soksamnang Keo1; 赵宏飞1
2017
Source Publication水土保持学报
Volume31Issue:3Pages:1-9
Abstract

研究河流输沙量具有重要的理论和实践意义。近60年在气候变化和人类活动日益增强的背景下,全
球众多河流输沙量都发生显著变化。基于全球河流输沙量数据库和区域河流输沙量研究成果,从全球尺度
对全球河流输沙量现状、输沙量空间分布格局及其影响因素、输沙量变化及其影响因素3方面进行分析研
究。结果表明:(1)全球河流年均总输沙量在2×1010 t左右,对全球主要36条河流输沙量数据分析表明大多
数河流输沙量显著减少;(2)地质地貌条件是河流输沙量控制性因素,气象水文条件和人类活动对河流间输
沙量差异的贡献大致相当;(3)对各气候带的代表性河流研究表明,相比较气候变化,全球河流输沙量变化主
要受人类活动的影响。未来全球河流总输沙量会因人类活动尤其是大坝建设的影响而继续减少。

Other Abstract

Sediment load research is of important theoretical and practical significance.In the past 60years,
with the increasing climate change and human activities,the sediment loads in many world rivers have undergone
significant changes.Based on global sediment database and regional river studies,status,distribution
patterns,and influencing factors of suspended sediment loads(SSL)of global rivers were reviewed.The results
showed that:(1)Before the proliferation of dam construction in the latter half of the 20th century,the
annual SSL of global rivers was around 2×1010t.New data of 36rivers indicated that most global rivers had
a decreasing trend in SSL.(2)Geology and geomorphology conditions were decisive factors controlling SSL
on a global scale.Meteorological and hydrological conditions and human activities had comparable contributions in
controlling the difference in SSL among rivers.(3)Representative river studies in various climatic zones showed that
changes in global SSL were mainly affected by human activities.In the future,the total SSL of global rivers
would continue to decrease due to the impact of human activities,especially dam construction.

Keyword输沙量 影响因素 气候变化 人类活动 全球河流
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8452
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学水土保持研究所,黄土高原土壤侵蚀与旱地农业国家重点实验室
2.中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
景昭伟,何洪鸣,Soksamnang Keo,等. 全球河流输沙量分布格局及其影响因素[J]. 水土保持学报,2017,31(3):1-9.
APA 景昭伟,何洪鸣,Soksamnang Keo,&赵宏飞.(2017).全球河流输沙量分布格局及其影响因素.水土保持学报,31(3),1-9.
MLA 景昭伟,et al."全球河流输沙量分布格局及其影响因素".水土保持学报 31.3(2017):1-9.
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