Study on the Annual Variation Characteristics of Runoff in Yunnan

To study the annual variation characteristics of runoff in Yunnan Province and analyze the main influencing factors,based on the observed monthly and annual rainfall and runoff data of 9 representative hydrological stations in 6 major river basins in Yunnan from 1956 to 2016,this paper analyzes the...

Full description

Saved in:
Bibliographic Details
Main Authors: GU Guihua, LI Xuehui, YU Shoulong, DUAN Lusong
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2021-01-01
Series:Renmin Zhujiang
Subjects:
Online Access:http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.03.005
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1841535599250505728
author GU Guihua
LI Xuehui
YU Shoulong
DUAN Lusong
author_facet GU Guihua
LI Xuehui
YU Shoulong
DUAN Lusong
author_sort GU Guihua
collection DOAJ
description To study the annual variation characteristics of runoff in Yunnan Province and analyze the main influencing factors,based on the observed monthly and annual rainfall and runoff data of 9 representative hydrological stations in 6 major river basins in Yunnan from 1956 to 2016,this paper analyzes the annual runoff distribution in terms of the uniformity,concentration and relative variation range.The research shows that:①The uniformity coefficient (C<sub>u</sub>) of runoff distribution in many years ranges from 0.55 to 1.21,and the concentration (C<sub>n</sub>) ranges from 0.23 to 0.66,so the runoff is unevenly distributed in the whole province.②The C<sub>u</sub> and C<sub>n</sub> decrease in general.Especially after 2000,the annual distribution of runoff shows a trend of uniformity.③The runoff concentration is relatively high in the Yangtze River Basin and the Honghe River Basin,and the annual runoff distribution is flat in the Lancang River Basin and the Zhujiang River Basin.④The uniformity trend of annual runoff distribution is closely related to human activities in the basin.
format Article
id doaj-art-0f68477b6a504593b07071437b21ee67
institution Kabale University
issn 1001-9235
language zho
publishDate 2021-01-01
publisher Editorial Office of Pearl River
record_format Article
series Renmin Zhujiang
spelling doaj-art-0f68477b6a504593b07071437b21ee672025-01-15T02:30:42ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352021-01-014247650575Study on the Annual Variation Characteristics of Runoff in YunnanGU GuihuaLI XuehuiYU ShoulongDUAN LusongTo study the annual variation characteristics of runoff in Yunnan Province and analyze the main influencing factors,based on the observed monthly and annual rainfall and runoff data of 9 representative hydrological stations in 6 major river basins in Yunnan from 1956 to 2016,this paper analyzes the annual runoff distribution in terms of the uniformity,concentration and relative variation range.The research shows that:①The uniformity coefficient (C<sub>u</sub>) of runoff distribution in many years ranges from 0.55 to 1.21,and the concentration (C<sub>n</sub>) ranges from 0.23 to 0.66,so the runoff is unevenly distributed in the whole province.②The C<sub>u</sub> and C<sub>n</sub> decrease in general.Especially after 2000,the annual distribution of runoff shows a trend of uniformity.③The runoff concentration is relatively high in the Yangtze River Basin and the Honghe River Basin,and the annual runoff distribution is flat in the Lancang River Basin and the Zhujiang River Basin.④The uniformity trend of annual runoff distribution is closely related to human activities in the basin.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.03.005runoffuniformity coefficientconcentrationinfluencing factorsYunnan
spellingShingle GU Guihua
LI Xuehui
YU Shoulong
DUAN Lusong
Study on the Annual Variation Characteristics of Runoff in Yunnan
Renmin Zhujiang
runoff
uniformity coefficient
concentration
influencing factors
Yunnan
title Study on the Annual Variation Characteristics of Runoff in Yunnan
title_full Study on the Annual Variation Characteristics of Runoff in Yunnan
title_fullStr Study on the Annual Variation Characteristics of Runoff in Yunnan
title_full_unstemmed Study on the Annual Variation Characteristics of Runoff in Yunnan
title_short Study on the Annual Variation Characteristics of Runoff in Yunnan
title_sort study on the annual variation characteristics of runoff in yunnan
topic runoff
uniformity coefficient
concentration
influencing factors
Yunnan
url http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.03.005
work_keys_str_mv AT guguihua studyontheannualvariationcharacteristicsofrunoffinyunnan
AT lixuehui studyontheannualvariationcharacteristicsofrunoffinyunnan
AT yushoulong studyontheannualvariationcharacteristicsofrunoffinyunnan
AT duanlusong studyontheannualvariationcharacteristicsofrunoffinyunnan