Article(id=1223204290743878629, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221159, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1653926400000, receivedDateStr=2022-05-31, revisedDate=1660406400000, revisedDateStr=2022-08-14, acceptedDate=null, acceptedDateStr=null, onlineDate=1769564228950, onlineDateStr=2026-01-28, pubDate=1684944000000, pubDateStr=2023-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769564228950, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769564228950, creator=13701087609, updateTime=1769564228950, updator=13701087609, issue=Issue{id=1223204286050452333, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='5', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769564227831, creator=13701087609, updateTime=1769567742010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219026013323264, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219026013323265, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=30, endPage=33, ext={EN=ArticleExt(id=1223204292308353094, articleId=1223204290743878629, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Changes of River Network System in Midstream of Xiangjiang River and Its Response to Urban Expansion, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

The expansion of cities and towns has caused a large amount of waters to be compressed, occupied or even disappeared, and the risk of floods in the region has increased sharply. This study is based on Hengyang, a typical city in midstream of Xiangjiang River. Based on expansion speed index and intensity index of Xiangjiang midstream from 2001 to 2016, the linkage relationship between the two is quantitatively analyzed, and the response of water system change under the background of urban expansion is analyzed. The results show that the urban development in midstream of Xiangjiang River can be divided into three stages. The urban expansion is characterized by a high speed and then a low intensity. During the study period, the total number of river systems showed a declining trend, and the channel morphology showed a shrinking state. The change of the structure of river systems was more severe than the change of the number. The basin with few river systems and single structure had a sharp decline. Urban expansion has a close relationship with the change of river system, and has a greater impact on the change of the number of river systems. And it is highly related to the basin with few water systems and single structure. It can be seen that human activities such as urban construction and expansion should minimize the adverse impact on such watersheds.

, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Run-ze XUAN, Liu YANG, Chang FENG, Qin ZHAN, Yan-hua YU, Ling LV), CN=ArticleExt(id=1223204293679890522, articleId=1223204290743878629, tenantId=1146029695717560320, journalId=1205116964453384197, language=CN, title=城镇扩张背景下湘江中游水系变化及其响应研究, columnId=1207627659488632924, journalTitle=水电能源科学, columnName=水文水资源与环境, runingTitle=null, highlight=null, articleAbstract=

鉴于城镇扩张使大量水域被挤占压缩甚至消失，导致洪涝风险剧增。以湘江中游典型城市衡阳为例，基于2001~2016年研究区水系特征数据与城镇化数据，构建了水系变化与多维城镇发展评价体系，剖析了城镇扩张背景下水系变化响应。结果表明，湘江中游地区城镇发展可分为三阶段，城镇扩张呈现速度先快后慢、强度相对较低的特征；研究期内水系数量总体呈衰减趋势，河道形态整体呈萎缩状态，水系数量少、结构单一的流域衰减剧烈；城镇扩张与水系变化关系紧密，其对水系数量变化影响大于结构变化，且与水系数量少、结构单一的流域关联度高。由此可见，城镇建设与扩张等人类活动要尽可能减少对此类流域的不良影响。

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宣润泽（1998-），女，硕士研究生，研究方向为城镇化下水系适应性，E-mail：xrz263@163.com

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宣润泽（1998-），女，硕士研究生，研究方向为城镇化下水系适应性，E-mail：xrz263@163.com

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