Climate Change Data Portal
| Climate change in salt marshes - Effects of hydrodynamic forcing and higher temperatures on coastal vegetation | |
| 项目编号 | http://gepris.dfg.de/gepris/projekt/401564364 |
| Professor Dr. KaiJensen | |
| 项目主持机构 | Universität Hamburg |
| 开始日期 | 2018 |
| 英文摘要 | Saltmarshesandothercoastalecosystemsprovideimportantecosystemservicessuchascoastalprotection,asthevegetationactsasanobstructiontohydrodynamicforces,thusleadingtowaveattenuation.Whilemoststudiessofarhavefocusedontheeffectsofvegetationonhydrodynamics,crucialknowledgeonhowhydrodynamicsinturnaffectandpotentiallydamagesaltmarshplantsaremissing.Additionally,effectsofglobalwarmingonbiophysicalpropertiesofmarshplants,whichdeterminetheirwaveattenuationcapacity,areunknown.Wewill(i)quantifyhydrodynamicforcesusingwaverecordingstationsatthemarginofWaddenSeasaltmarshesanddetermineitsspatialandtemporalvariationatsitesdifferinginexposure.Inparallel,vegetationstructureandtheeventuallossofbiomasswillbenon-destructivelydeterminedandcorrelatedtotherecordedhydrodynamicconditions.Undercontrolledexperimentalconditions(ii)thresholdsofhydrodynamicforcesbeyondwhichsaltmarshplantssufferphysicaldamagewillbeassessedinatruetoscaleflumestudy.Weexpectthresholdstobespeciesspecific,asplantspeciesinsaltmarshessignificantlydifferintheirbiophysicalpropertiessuchasplantflexibility.Furthermore,seasonalchangesinthesethresholdsduetodifferentplantdevelopmentstagesanddifferencesinthresholdsbetweensingleindividualsofcertainspeciesandthoseassociatedincomplexvegetationcanopieswillbedetermined.Finally,wewill(iii)analyseeffectsofrisingtemperaturesonbiophysicalpropertiesandthuswaveattenuationcapacityofmarshplantsinaworld-uniquewholeecosystemsalt-marshwarmingexperiment.Weexpectthatwarmingwillincreaseabove-andbelowgroundbiomass,prolongthegrowingseasonandincreasethelignincontentofplants.Overall,thismightincreasethecoastalprotectionfunctionofsaltmarshesinawarmerworld.Theresultswillbemadeavailabletobefedintobothhydrodynamicmodelsofwaveimpactonland-wardlyingseadefencesaswellasintomodelsofmarshevolutionunderdifferentclimatechangeandsealevelrisescenarios.Thefindingswillthushelptoassessthecoastalprotectionfunctionofsaltmarshesadequatelyinthefutureandtobetterdealwithimpactsofecologicalstochasticityandextremeeventssuchasstormsurgesoncoastalsaltmarshes. |
| 学科分类 | 0603 - 生态学;06 - 生物科学 |
| 资助机构 | DE-DFG |
| 项目类型 | Research Grants |
| 国家 | DE |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/69378 |
| 推荐引用方式 GB/T 7714 | Professor Dr. KaiJensen.Climate change in salt marshes - Effects of hydrodynamic forcing and higher temperatures on coastal vegetation.2018. |
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