Article(id=1276897238601298398, tenantId=1146029695717560320, journalId=1276576982599962646, issueId=1276896975568109838, articleNumber=null, orderNo=null, doi=10.3724/j.slxb.20250601, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1758643200000, receivedDateStr=2025-09-24, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1782365625285, onlineDateStr=2026-06-25, pubDate=1779206400000, pubDateStr=2026-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1782365625285, onlineIssueDateStr=2026-06-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1782365625285, creator=13701087609, updateTime=1782365625285, updator=13701087609, issue=Issue{id=1276896975568109838, tenantId=1146029695717560320, journalId=1276576982599962646, year='2026', volume='57', issue='5', pageStart='651', pageEnd='808', issueExtLink='null', onlineDate='null', pubDate='1779206400000', pubDateStr='2026-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1782365562574, creator='13701087609', updateTime=1782367019422, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1276903086153142605, tenantId=1146029695717560320, journalId=1276576982599962646, issueId=1276896975568109838, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1276903086153142606, tenantId=1146029695717560320, journalId=1276576982599962646, issueId=1276896975568109838, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=767, endPage=781, ext={EN=ArticleExt(id=1276897238781653472, articleId=1276897238601298398, tenantId=1146029695717560320, journalId=1276576982599962646, language=EN, title=Changes in the backwater effect of Dongting Lake inflows on the Lower Jingjiang River after the impoundment of the Three Gorges Reservoir, columnId=null, journalTitle=Journal of Hydraulic Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Clarifying the new characteristics of Dongting Lake’s backwater effect on the lower Jingjiang River after the impoundment of the Three Gorges Reservoir is a critical issue at present. Focusing on the river section from Jianli to Chenglingji upstream of the confluence between the river and the lake, Copula functions were employed to investigate the characteristics of flow coincidences between the river and the lake in different periods. Based on the flow dynamics of alluvial rivers, a balanced-state flow pairing relationship was proposed, and an index for assessing the backwater intensity of the mainstream was developed. On this basis, the occurrence probability and timing of backwater events as well as the variation of backwater intensity during different periods within a year for the lower Jingjiang River before and after the impoundment of the Three Gorges Reservoir were quantitatively analyzed. The results indicate that, under the balanced state, the flow pairing between the river and the lake follows a nonlinear functional relationship. This relationship is close to the long-term mean fitted line of river-lake discharges and can be used to determine whether the mainstream is in a backwater or drawdown state. After the impoundment of the Three Gorges Reservoir, the duration of Jianli discharges at the medium-low flow level increased, resulting in a 44.6% rise in the coincidence probability of both the mainstream and lake inflows being at medium-low flow. The coincidence probability of the mainstream at medium flow and lake inflows at flood level (exceeding 30,000 m³/s) increased by 5.4%. As a result, the erosional base level at the river-lake confluence decreased, and on an annual scale, the mean backwater intensity of the lake on the mainstream weakened. However, the timing of the mainstream being in a backwater state shifted from above-bankfull flow levels to medium flow levels. The occurrence of extreme backwater intensity far exceeding the historical values during April-July has increased, warranting long-term attention.
, authors=null, authorsList=Zhiqing LI, Zhaohua SUN, Li CHEN, Shanshan AN, Weixing ZHOU, authorCompany=null, 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, fund=null), CN=ArticleExt(id=1276897241466008058, articleId=1276897238601298398, tenantId=1146029695717560320, journalId=1276576982599962646, language=CN, title=三峡建库后洞庭湖入汇对下荆江顶托特征的变化分析, columnId=1276897011681067524, journalTitle=水利学报, columnName=第二十八届中国科协年会学术论文, runingTitle=null, highlight=null, articleAbstract=
厘清三峡建库后洞庭湖对下荆江顶托的新特征是当前的重要问题。针对江湖交汇点上游的监利至城陵矶河段,引入Copula函数研究不同时期的江湖汇流遭遇特征;基于冲积河流水流运动规律提出平衡态下的江湖流量搭配关系,构建干流受顶托强度的评估指标,在此基础上定量分析了三峡建库前后下荆江受顶托事件的发生几率、出现时机以及年内不同时期的顶托强度变化。研究表明,平衡态下的江湖流量搭配为非线性函数关系,该关系与江湖流量之间的多年平均拟合线相近,可用于判别干流的顶托或消落状态。三峡建库后,监利流量处于中枯水量级的历时增长,导致干流与湖泊汇流均为中枯水的遭遇概率增幅为44.6%,干流中水与湖泊汇流为洪水(大于30 000m3/s)的遭遇概率增幅为5.4%。受其影响,江湖汇流点的侵蚀基准面降低,并且年尺度上湖区对干流的平均顶托强度减弱,但干流处于顶托态的时机由平滩以上流量级向中水流量级转移,4—7月份出现远大于历史同期顶托强度的极端情况增多,需引起长期关注。
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, authorsList=李芷晴, 孙昭华, 陈立, 安姗姗, 周炜兴, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=
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1, 2, 3, address=
1.State Key Laboratory of Water Resources Engineering and Management,Wuhan University,Wuhan 430072,China
2.Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,China
3.Hubei Key Laboratory of Basin Water Security,Wuhan 430010,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1277261296349347870, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, authorId=1277261296047357976, language=CN, stringName=李芷晴, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.武汉大学 水资源工程与调度全国重点实验室,湖北 武汉 430072
2.长江勘测规划设计研究有限责任公司,湖北 武汉 430010
3.流域水安全保障湖北省重点实验室,湖北 武汉 430010, bio={"content":"
李芷晴(1998—),博士生,主要从事水力学及河流动力学研究。E-mail:lizdyx@whu.edu.cn
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李芷晴(1998—),博士生,主要从事水力学及河流动力学研究。E-mail:lizdyx@whu.edu.cn
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3.流域水安全保障湖北省重点实验室,湖北 武汉 430010)])], figs=[ArticleFig(id=1277261303475470397, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.1, caption=
Location of the study area, figureFileSmall=qyb0X8ftiYG9xT71qQJNOQ==, figureFileBig=XWszetAwzZnLizeIjkwknw==, tableContent=null), ArticleFig(id=1277261303567745086, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图1, caption=
研究区域河道概况, figureFileSmall=qyb0X8ftiYG9xT71qQJNOQ==, figureFileBig=XWszetAwzZnLizeIjkwknw==, tableContent=null), ArticleFig(id=1277261303697768511, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.2, caption=
Schematic diagram of HPG for mild-slope, figureFileSmall=MebkqERVjuDDVYlE0mxJLQ==, figureFileBig=19d/k/YlWYRlZLlh6TT8ZQ==, tableContent=null), ArticleFig(id=1277261303903289408, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图2, caption=
缓流情况下的HPG示意, figureFileSmall=MebkqERVjuDDVYlE0mxJLQ==, figureFileBig=19d/k/YlWYRlZLlh6TT8ZQ==, tableContent=null), ArticleFig(id=1277261304003952705, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.3, caption=
Schematic diagram of a generalized river-lake confluence reach, figureFileSmall=xetXD0FBNepdWMpmjiQmug==, figureFileBig=cpruS7YT9x43tDLRuv4+Bw==, tableContent=null), ArticleFig(id=1277261304066867266, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图3, caption=
概化的江湖汇流区段示意, figureFileSmall=xetXD0FBNepdWMpmjiQmug==, figureFileBig=cpruS7YT9x43tDLRuv4+Bw==, tableContent=null), ArticleFig(id=1277261304159141955, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.4, caption=
Fitting results of discharge PDFs and optimal CDFs for different periods, figureFileSmall=ZwmAU9/CYhqpYjAIVZWnSw==, figureFileBig=F+Obxj4rtb1LxKeBpHQFsA==, tableContent=null), ArticleFig(id=1277261304255610948, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图4, caption=
不同时期的流量概率密度函数及最优累积分布函数拟合结果, figureFileSmall=ZwmAU9/CYhqpYjAIVZWnSw==, figureFileBig=F+Obxj4rtb1LxKeBpHQFsA==, tableContent=null), ArticleFig(id=1277261304326914117, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.5, caption=
Joint probability distribution of discharge at Jianli and Chenglingji stations, figureFileSmall=m1+f+PEayRseXO8dIn+Dyw==, figureFileBig=EPxu71/1dtUnV6m8m6+HmQ==, tableContent=null), ArticleFig(id=1277261305996247110, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图5, caption=
监利流量与城陵矶流量的联合概率分布, figureFileSmall=m1+f+PEayRseXO8dIn+Dyw==, figureFileBig=EPxu71/1dtUnV6m8m6+HmQ==, tableContent=null), ArticleFig(id=1277261306088521799, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.6, caption=
Correlation between water levels at Jianli and Chenglingji stations, figureFileSmall=ZVxcRyE8i1pR3HqgbU94Ug==, figureFileBig=o8R3Pi9PKBrKDlT40QLzTQ==, tableContent=null), ArticleFig(id=1277261306189185096, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图6, caption=
监利水位与城陵矶水位相关关系, figureFileSmall=ZVxcRyE8i1pR3HqgbU94Ug==, figureFileBig=o8R3Pi9PKBrKDlT40QLzTQ==, tableContent=null), ArticleFig(id=1277261306243711049, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.7, caption=
Mean longitudinal bed slope of the Jianli-Chenglingji reach, figureFileSmall=TkyxgI7veNecPGzB0nMN9w==, figureFileBig=oLFL3q0lIpgLRnxpGAZWSA==, tableContent=null), ArticleFig(id=1277261306331791434, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图7, caption=
监—城河段平均河床纵比降, figureFileSmall=TkyxgI7veNecPGzB0nMN9w==, figureFileBig=oLFL3q0lIpgLRnxpGAZWSA==, tableContent=null), ArticleFig(id=1277261306398900299, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.8, caption=
Scatter distribution of discharge at Jianli and Chenglingji stations with state classification, figureFileSmall=X6eg0PjiCdfyMsaW8KGdpg==, figureFileBig=I7DdMGhdC6SfsY7D/zPRYA==, tableContent=null), ArticleFig(id=1277261306495369292, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图8, caption=
监利流量与城陵矶流量的散点分布及其状态划分, figureFileSmall=X6eg0PjiCdfyMsaW8KGdpg==, figureFileBig=I7DdMGhdC6SfsY7D/zPRYA==, tableContent=null), ArticleFig(id=1277261306579255373, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.9, caption=
Probability of backwater occurrence at different Jianli discharges before and after the Three Gorges Reservoir impoundment, figureFileSmall=SnLBRXalSNczDVzJVObHyA==, figureFileBig=HTeg4FotEmN26zpNlgJoWQ==, tableContent=null), ArticleFig(id=1277261306658947150, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图9, caption=
三峡水库建库前后各监利流量级下的干流受顶托几率, figureFileSmall=SnLBRXalSNczDVzJVObHyA==, figureFileBig=HTeg4FotEmN26zpNlgJoWQ==, tableContent=null), ArticleFig(id=1277261306742833231, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.10, caption=
Monthly number of backwater days and their distribution across discharge levels, figureFileSmall=XfFaB3oZ4qVR4hDAtLBq7A==, figureFileBig=DWcwovrbN4GXjym5sJZmLA==, tableContent=null), ArticleFig(id=1277261306843496528, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图10, caption=
干流呈顶托态的各月天数及其在各流量级下的分布, figureFileSmall=XfFaB3oZ4qVR4hDAtLBq7A==, figureFileBig=DWcwovrbN4GXjym5sJZmLA==, tableContent=null), ArticleFig(id=1277261306939965521, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.11, caption=
Backwater intensity under different discharge combinations and its variation, figureFileSmall=7x05BIomXFdn/52mU6Tj8w==, figureFileBig=8y6jB5DAXmSFz8s/jm0KQw==, tableContent=null), ArticleFig(id=1277261307019657298, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图11, caption=
各级干支流量组合下的干流受顶托强度及其在三峡建库后的变化, figureFileSmall=7x05BIomXFdn/52mU6Tj8w==, figureFileBig=8y6jB5DAXmSFz8s/jm0KQw==, tableContent=null), ArticleFig(id=1277261307099349075, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Fig.12, caption=
Intra-annual backwater intensity in the Lower Jingjiang River before and after the Three Gorges Reservoir impoundment, figureFileSmall=M8Er8iaIPzzuzKDJtcLTjA==, figureFileBig=odp5KpFji3gQ8ii6O7uZgQ==, tableContent=null), ArticleFig(id=1277261307162263636, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=图12, caption=
三峡建库前后的下荆江顶托强度年内分布, figureFileSmall=M8Er8iaIPzzuzKDJtcLTjA==, figureFileBig=odp5KpFji3gQ8ii6O7uZgQ==, tableContent=null), ArticleFig(id=1277261307250344021, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Table 1, caption=
Comparison of evaluation metrics for marginal distribution fitting of discharge at Jianli and Chenglingji stations
, figureFileSmall=null, figureFileBig=null, tableContent=
| 时期 | 评价指标 | 监利 | 城陵矶 |
| P-Ⅲ | GEV | LOGN | EXP | P-Ⅲ | GEV | LOGN | EXP |
| 1992—2002年 | K-S | 0.059 | 0.089 | 0.084 | 0.257 | 0.016 | 0.039 | 0.034 | 0.117 |
| RMSE | 0.034 | 0.040 | 0.050 | 0.114 | 0.007 | 0.018 | 0.020 | 0.075 |
| AIC | 80945 | 81477 | 81550 | 83561 | 80333 | 80661 | 80510 | 81302 |
| 2003—2008年 | K-S | 0.070 | 0.078 | 0.097 | 0.288 | 0.053 | 0.071 | 0.067 | 0.187 |
| RMSE | 0.039 | 0.041 | 0.056 | 0.127 | 0.023 | 0.039 | 0.035 | 0.087 |
| AIC | 43684 | 43878 | 44018 | 45341 | 42477 | 42756 | 42634 | 43366 |
| 2009—2020年 | K-S | 0.057 | 0.099 | 0.103 | 0.377 | 0.054 | 0.056 | 0.051 | 0.191 |
| RMSE | 0.030 | 0.043 | 0.064 | 0.162 | 0.026 | 0.038 | 0.030 | 0.086 |
| AIC | 85717 | 86645 | 87148 | 91291 | 86120 | 86411 | 86196 | 87725 |
), ArticleFig(id=1277261307342618710, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=表1, caption=
监利站与城陵矶站流量的边缘分布函数拟合评价指标对比结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 时期 | 评价指标 | 监利 | 城陵矶 |
| P-Ⅲ | GEV | LOGN | EXP | P-Ⅲ | GEV | LOGN | EXP |
| 1992—2002年 | K-S | 0.059 | 0.089 | 0.084 | 0.257 | 0.016 | 0.039 | 0.034 | 0.117 |
| RMSE | 0.034 | 0.040 | 0.050 | 0.114 | 0.007 | 0.018 | 0.020 | 0.075 |
| AIC | 80945 | 81477 | 81550 | 83561 | 80333 | 80661 | 80510 | 81302 |
| 2003—2008年 | K-S | 0.070 | 0.078 | 0.097 | 0.288 | 0.053 | 0.071 | 0.067 | 0.187 |
| RMSE | 0.039 | 0.041 | 0.056 | 0.127 | 0.023 | 0.039 | 0.035 | 0.087 |
| AIC | 43684 | 43878 | 44018 | 45341 | 42477 | 42756 | 42634 | 43366 |
| 2009—2020年 | K-S | 0.057 | 0.099 | 0.103 | 0.377 | 0.054 | 0.056 | 0.051 | 0.191 |
| RMSE | 0.030 | 0.043 | 0.064 | 0.162 | 0.026 | 0.038 | 0.030 | 0.086 |
| AIC | 85717 | 86645 | 87148 | 91291 | 86120 | 86411 | 86196 | 87725 |
), ArticleFig(id=1277261307405533271, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Table 2, caption=
Copula parameter estimation and goodness-of-fit results for discharge at Jianli and Chenglingji stations
, figureFileSmall=null, figureFileBig=null, tableContent=
| 1992—2002年 | 2003—2008年 | 2009—2020年 |
| θ | RMSE | AIC | θ | RMSE | AIC | θ | RMSE | AIC |
| Clayton | 1.066 | 0.575 | -1615 | 0.677 | 0.571 | -416 | 1.086 | 0.571 | -1813 |
| Frank | 5.722 | 0.573 | -2556 | 4.038 | 0.576 | -813 | 5.255 | 0.581 | -2447 |
| Gumbel | 1.832 | 0.576 | -2371 | 1.488 | 0.567 | -593 | 1.694 | 0.581 | -1985 |
| Gaussian | 0.681 | 0.575 | -2504 | 0.500 | 0.569 | -628 | 0.636 | 0.579 | -2272 |
), ArticleFig(id=1277261307468447832, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=表2, caption=
监利与城陵矶站流量的Copula联合分布参数估计及拟合检验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 1992—2002年 | 2003—2008年 | 2009—2020年 |
| θ | RMSE | AIC | θ | RMSE | AIC | θ | RMSE | AIC |
| Clayton | 1.066 | 0.575 | -1615 | 0.677 | 0.571 | -416 | 1.086 | 0.571 | -1813 |
| Frank | 5.722 | 0.573 | -2556 | 4.038 | 0.576 | -813 | 5.255 | 0.581 | -2447 |
| Gumbel | 1.832 | 0.576 | -2371 | 1.488 | 0.567 | -593 | 1.694 | 0.581 | -1985 |
| Gaussian | 0.681 | 0.575 | -2504 | 0.500 | 0.569 | -628 | 0.636 | 0.579 | -2272 |
), ArticleFig(id=1277261307531362393, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Table 3, caption=
Fitting results of equations (2) (3) for different periods
, figureFileSmall=null, figureFileBig=null, tableContent=
| 时期 | 式(2) | 式(3) |
| α1 | β1 | Z1 | R | α2 | β2 | Z2 | R |
| 1992—2002年 | 0.04 | 4.02 | 4.51 | 0.894 | 4.84 | 2.86 | 5.45 | 0.985 |
| 2003—2008年 | 0.29 | 3.59 | 7.69 | 0.914 | 0.39 | 3.49 | 1.78 | 0.989 |
| 2009—2020年 | 0.43 | 3.34 | 5.30 | 0.883 | 42.18 | 2.23 | 7.71 | 0.987 |
), ArticleFig(id=1277261307673968730, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=表3, caption=
不同时期内式(2)(3)的参数拟合结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 时期 | 式(2) | 式(3) |
| α1 | β1 | Z1 | R | α2 | β2 | Z2 | R |
| 1992—2002年 | 0.04 | 4.02 | 4.51 | 0.894 | 4.84 | 2.86 | 5.45 | 0.985 |
| 2003—2008年 | 0.29 | 3.59 | 7.69 | 0.914 | 0.39 | 3.49 | 1.78 | 0.989 |
| 2009—2020年 | 0.43 | 3.34 | 5.30 | 0.883 | 42.18 | 2.23 | 7.71 | 0.987 |
), ArticleFig(id=1277261307741077595, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=EN, label=Table 4, caption=
Critical transition conditions between backwater and drawdown states under different discharge at Jianli
, figureFileSmall=null, figureFileBig=null, tableContent=
| QJL/(m3/s) | 正常流时对应的城陵矶流量 QCLJ,N/(m3/s) | 干流流量占江湖合流量比例 QJL/(QJL+QCLJ,N) |
| 1992—2002年 | 2003—2008年 | 2009—2020年 | 1992—2002年 | 2003—2008年 | 2009—2020年 |
| 5000 | 4678 | 4278 | 3573 | 0.517 | 0.539 | 0.583 |
| 10000 | 7959 | 6583 | 6785 | 0.557 | 0.603 | 0.596 |
| 20000 | 12535 | 10072 | 11184 | 0.615 | 0.665 | 0.641 |
| 30000 | 15646 | 12849 | 14008 | 0.657 | 0.700 | 0.682 |
), ArticleFig(id=1277261307812380764, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897238601298398, language=CN, label=表4, caption=
不同监利流量下的顶托态与消落态临界转换条件
, figureFileSmall=null, figureFileBig=null, tableContent=
| QJL/(m3/s) | 正常流时对应的城陵矶流量 QCLJ,N/(m3/s) | 干流流量占江湖合流量比例 QJL/(QJL+QCLJ,N) |
| 1992—2002年 | 2003—2008年 | 2009—2020年 | 1992—2002年 | 2003—2008年 | 2009—2020年 |
| 5000 | 4678 | 4278 | 3573 | 0.517 | 0.539 | 0.583 |
| 10000 | 7959 | 6583 | 6785 | 0.557 | 0.603 | 0.596 |
| 20000 | 12535 | 10072 | 11184 | 0.615 | 0.665 | 0.641 |
| 30000 | 15646 | 12849 | 14008 | 0.657 | 0.700 | 0.682 |
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