干旱区生态环境知识资源中心(Arid): Can long-term beach erosion be solved with soft management measures? Case study of the protected Jandia beaches

Arid

DOI	10.1016/j.ocecoaman.2021.105946
	Can long-term beach erosion be solved with soft management measures? Case study of the protected Jandia beaches
	Marrero-Rodriguez, Nestor; Casamayor, Mariona; Jose Sanchez-Garcia, Maria; Alonso, Ignacio
通讯作者	Marrero-Rodriguez, N (corresponding author), Univ Las Palmas Gran Canaria, Inst Oceanog & Cambio Global, Grp Geog Fis & Medio Ambiente, IOCAG, Las Palmas Gran Canaria, Spain.
来源期刊	OCEAN & COASTAL MANAGEMENT
ISSN	0964-5691
EISSN	1873-524X
出版年	2021
卷号	214
英文摘要	Land uses have long modified aeolian sedimentary dynamics as has occurred in the Jandia isthmus (Fuerteventura, Canary Islands, Spain), where changes in vegetation cover, the reduction of sediment available for transport and the building of barriers to sediment transport have induced beach erosion. In the last 62 years the beach area has experienced a reduction of 800,000 m(2). The aim of this paper is to analyse the current situation (in terms of sediment availability, longshore drift and the distribution of protected plant species) in order to make soft management proposals to respond to the current erosive situation. Based on a methodology that combines field work, coastline digitalization and longshore drift calculations, it is found that each year the system loses about 96,000 m(3) of sediment which needs to be replaced in order to stop erosion. Four possible ways to manage the system are discussed: passive non-intervention management to allow the ecosystem to evolve and adapt to the new conditions; remobilization of the sedimentary deposits of the isthmus that feed the beaches; beach nourishment from other areas of the system or from outside the system, and; mechanical recirculation of the sands. The viability of each management system is analyzed, particularly with regard to long-term sustainability, as well as its compliance or otherwise with the protection measures that are in place. Paradoxically, the only measures that can alleviate the problem in the long term are incompatible with the current protective measures. In other words, the isthmus and the Sotavento beaches in Jandia are an example of an ecosystem in which the restrictions imposed as a result of its protected status, that do not take into account the tendences of the ecosystem, in fact constitute an obstacle to its conservation and do not allow the adoption of measures that could slow down the degradation process and, ultimately, impede its disappearance.
英文关键词	Coastal management Arid aeolian sedimentary system Beach erosion Beach nourishment Passive management
类型	Article
语种	英语
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000710580800001
WOS关键词	CANARY-ISLANDS ; GRAZING MANAGEMENT ; HUMAN IMPACT ; NOURISHMENT ; VEGETATION ; EVOLUTION ; SYSTEMS ; CONSERVATION ; ECOSYSTEMS ; VALUATION
WOS类目	Oceanography ; Water Resources
WOS研究方向	Oceanography ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368169
作者单位	[Marrero-Rodriguez, Nestor] Univ Las Palmas Gran Canaria, Inst Oceanog & Cambio Global, Grp Geog Fis & Medio Ambiente, IOCAG, Las Palmas Gran Canaria, Spain; [Casamayor, Mariona; Jose Sanchez-Garcia, Maria; Alonso, Ignacio] Univ Las Palmas Gran Canaria, Inst Oceanog & Cambio Global, Grp Geol Aplicada & Reg, IOCAG, Las Palmas Gran Canaria, Spain
推荐引用方式 GB/T 7714	Marrero-Rodriguez, Nestor,Casamayor, Mariona,Jose Sanchez-Garcia, Maria,et al. Can long-term beach erosion be solved with soft management measures? Case study of the protected Jandia beaches[J],2021,214.
APA	Marrero-Rodriguez, Nestor,Casamayor, Mariona,Jose Sanchez-Garcia, Maria,&Alonso, Ignacio.(2021).Can long-term beach erosion be solved with soft management measures? Case study of the protected Jandia beaches.OCEAN & COASTAL MANAGEMENT,214.
MLA	Marrero-Rodriguez, Nestor,et al."Can long-term beach erosion be solved with soft management measures? Case study of the protected Jandia beaches".OCEAN & COASTAL MANAGEMENT 214(2021).