31a来塔里木河干流新其满河段河道演变特性
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关键词：河道演变；卫星影像；河道参数；新其满河段；塔里木河中图分类号：TV62 文献标志码：A doi：10.3969/j.issn.1000-1379.2026.02.011引用格式：，，.31a来塔里木河干流新其满河段河道演变特性[J].人民黄河，2026，48（2）：65-71.
Characteristics Channel Evolution the Xinqiman Reach in the Tarim River Main Stream over the Past 31 Years
LIU Jing1，²，LI Lin1²， ZONG Quanli³ （1. Engineering， Xinjiang Agricultural University， Urumqi 830o52，China; 2.Xinjiang Key Laboratory Engineering Security Water DisastersPrevention，Urumqi 830o52，China; 3. Resources Environment， Qingdao Agricultural University， Qingdao 266109，China）
Abstract：ToinvestigateteevolutioncharacteristicstheXinqmansectionintemainstreamteTarimRiver，thisstudyanalyed31 years（1993-O）Lndsatseriessatelieimageryhdrologicalstationdatawatersedment.Acomparativeanalysiswasconductedonthetypicalparametestevercrossetion，tehaelenterlinendthareathed-chaelbars.Tesulsindicate that the rates northward southward migration the main channel reached 13.7ma 11.3m/a ，respectively. At the Xinqiman Bridge section， the centerline migrated westward at a rate 19m/a ，necessitating continuous expansion the right bank abutment. The sinuositycoefetchangedfrom1.61to.O.Theaverageratehanginteurvatureadusforend1，Bend2theucted ering reaches was 30.5% .The bend tightness index fluctuated between O.8 3.34，indicating thatthe river channel had lengthened becamemoresinuous，therebyincreasingflodriskduringthefloodseason.Theaveragerateswideningnarowingforthechannel cross-sections were 79% 18.8% ， respectively. Channel widening could lead to mainstream migration bank retreat， damaging existing revetmenttructuresriparianfarl，whilechannelnarowingincreasedtheriskfloodovertopingduringhig-flowperiods.idchannel bar1 （ 500m northeast Dazhai Reservoir） mid-channel bar 2（ 2km northeast），due to their expansion，caused 4OO m （204号 300m retreatattheconcavebanks，respectively，ntensifyingthecycle“erosionatconcavebanksdepositionatconvexbanks” furtherincreasingflodolOallaelvouiseItioddpentllatidd ment dredging to ensure the safety the banks，adjacent farml，villages the Xinqiman Bridge.
Key words：channel evolution； satelite image；channel parameter； Xinqiman Reach； Tarim River
0 引言
塔里木河是我国第一大内陆河，位于欧亚腹地的塔里木盆地，由阿克苏河、叶尔羌河与和田河在肖夹克处汇聚而成，最终注入台特玛湖，干流全长 1 321km ，流域面积为102万 km2[1] 。（剩余9142字）
