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Advancesinthestudyofice - rockavalanchedisasterchainsin
YarlungZangboRiverBasininsoutheastTibet
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2
1
NIANTingkai,ZHAORundong,ZHENGDefeng,XUBin,XULuke,YANChenglin 2
(1.SchoolofInfrastructureEngineering,DalianUniversityofTechnology,Dalian 116024,China;
2.SchoolofGeographicalSciences,LiaoningNormalUniversity,Dalian116029,China)
Abstract:Withtheglobalwarming,theice - rockavalanchesandtheirdisasterchainshavebecomeacurrentre
searchhotspot.Sinceice - rockavalanchesusuallyoccurinhighmountainareas ,insufficientmonitoringandmodel
ingtoolshavemadeitdifficulttocarryoutstudiesandhaveyieldedfewresults.TheYarlungZangboRiverBasinin
southeasternTibetisahigh - incidenceareaofice - rockavalanchedisastersinChina.Itisalsothecorezoneofhy
dropowerdevelopment.Ice?rockstabilityposesaseriousthreattotheconstructionandoperationofwaterprojects
andthesafetyofthepeople.Onthebasisofcomprehensivereviewsofthecurrentstatusofresearchbyscholars,
wesummarizedtheice - rockavalancheeventswithrelevantrecordsinSoutheastTibetinthepast70years.Were
finedtheice - rockavalanchedisasterthroughin - depthinvestigationandanalysis ,andexploredthespatialandtem
poraldistributionpatternofice - rockavalanchedisastersintheregion.Further,theformationmechanismofice - rock
avalancheshasbeenpreliminarilyrevealedaccordingtotheuniquegeographicalcharacteristicsofYarlungZangbo
RiverBasin ,andtheice - rockavalanchedisasterchainsintheregionwereclassifiedintofourtypes,namely,
debrisflowtype,blocked - riverdammingtype,glacial - lakeoutbursttypeandfailuretypeofreservoir - dam.On
thisbasis ,thecurrentstatusofice - rockavalanchehazardsduring1999—2023wasquantitativelyanalyzedbased
ontheCiteSpaceandtheWebofScienceCoreCollection,revealingtheresearchhotspotsandfuturedevelopment
trendsindifferentperiods.Theresultsofthestudyprovideausefulreferenceforresearchersstudyingice - rockava
lanchedisastersandforthoseinvolvedindisasterpreventionandmitigationofmajorprojectsinsoutheastTibet.
Keywords: Yarlung Zangbo RiverBasin; ice -rock avalanche; disasterchain; majorwaterconservancy
projects;CiteSpace
(责任编辑:王 婧)
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