Coastal erosion in Shandong of China:status and protection challenges

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摘要 Shandonghasmorethan70%ofnaturalcoastsareundererosion.Coastalerosionstartedfromthe1970'sandbecameaveryseriousproblemat1990's.Thedramaticdecreaseofsedimentsuppliesfromriverscausedrapiderosionatthedeltaandestuaryareas,especiallyintheabandonedYellowRiverDelta.MostsandycoastsalongthePeninsulawereerodedduetolackofsandsupplyandinterruptionofalongshoresedimentdrift,sanddredgingfromthebeachortheoffshoreareacausedseriouserosionduringshorttime.Sea-levelrisecausesslowbutconstantshorelineretreatsandbecameamoreseriousthreat.DifferenttypesofhardsolutionsforcoastalprotectionagainsterosionwereusedinShandong.Seawallsaremostwidelyused,especiallyattheYellowRiverDeltaandcitycenterwaterfront.Groynes,jettiesandbreakwaterareusedonthenorthandeastsandycoastofthePeninsula.Hardapproachesareeffectivetoprotectthecoasterosionbutnotchangetheerosioncausesandledsecondaryimpactonthecoast.Softengineeringsolutionorthecombinedsolutionsaretakenintoacts.Beachnourishmentismostlyconsideredasthebettersoftsolution,especiallytothosetouristsattractingsandybeachesalongtheShandongcoast.Longtermmonitoringandcontinuouslessonslearningfromthecoastalerosionmanagementwillbeadaptiveforbettercoastsolutioninthefuture.
机构地区 不详
出处 《中国地质(英文)》 2018年4期
出版日期 2018年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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