当前位置: X-MOL 学术Quat. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Collapse of Holocene mangrove ecosystems along the coastline of Oman
Quaternary Research ( IF 2.3 ) Pub Date : 2020-12-29 , DOI: 10.1017/qua.2020.96
Valeska Decker , Michaela Falkenroth , Susanne Lindauer , Jessica Landgraf , Zahra Al-Lawati , Huda Al-Rahbi , Sven Oliver Franz , Gösta Hoffmann

Sedimentological, geochemical, and paleontological investigations of the coastline of northeastern Oman have provided the authors with an in-depth insight into Holocene sea levels and climate conditions. The spatial distribution and species assemblage of mangrove ecosystems are analyzed. These ecosystems are sensitive to changes in sea level and precipitation and thus reflect ecological conditions. The close proximity to archaeological sites allows us to draw conclusions regarding human interaction with the mangrove ecosystems. Our interdisciplinary inquiry reveals that the mangrove ecosystems along the east coast of Oman collapsed ~6000 cal yr BP on a decadal scale. There is no sedimentological evidence for a mid-Holocene sea-level highstand. The ecosystem collapse was not caused by sea-level variation or anthropogenic interferences; rather, it was the consequence of reduced precipitation values related to a southward shift of the Intertropical Convergence Zone. This resulted in a decrease of freshwater input and an increase in soil salinity. Further, the aridification of the area caused increased deflation and silting up of the lagoons.

中文翻译:

沿阿曼海岸线的全新世红树林生态系统崩溃

对阿曼东北部海岸线的沉积学、地球化学和古生物学调查为作者提供了对全新世海平面和气候条件的深入了解。分析了红树林生态系统的空间分布和物种组合。这些生态系统对海平面和降水的变化很敏感,因此反映了生态状况。靠近考古遗址使我们能够得出关于人类与红树林生态系统相互作用的结论。我们的跨学科调查表明,阿曼东海岸的红树林生态系统在十年范围内崩溃了约 6000 cal yr BP。没有关于中全新世海平面高位的沉积学证据。生态系统崩溃不是由海平面变化或人为干扰引起的;相当,这是与热带辐合带南移相关的降水量减少的结果。这导致淡水输入减少和土壤盐分增加。此外,该地区的干旱化导致了泻湖的通货紧缩和淤积。
更新日期:2020-12-29
down
wechat
bug