气候变化领域集成服务门户(CCPortal): Geological evolution of offshore pollution and its long-term potential impacts on marine ecosystems

CCPortal

DOI	10.1016/j.gsf.2022.101427
	Geological evolution of offshore pollution and its long-term potential impacts on marine ecosystems
	Zhou, Qixing; Wang, Simin; Liu, Jiaqi; Hu, Xiangang; Liu, Yuxia; He, Yuqing; He, Xuan; Wu, Xiaotong
发表日期	2022
ISSN	1674-9871
卷号	13 期号:5
英文摘要	Populations and metropolitan centers are accumulated in coastal areas around the world. In view of the fact that they are geographically adjacent to coasts and intense anthropogenic activities, increasing global offshore pollution has been an important worldwide concern over the past several decades and has become a very serious problem that needs to be addressed urgently. Due to offshore pollution, various geological disasters occur in high frequency, including intensified erosion and salinization of coastal soils, frequent geological collapses and landslides and increasing seismic activities. Moreover, offshore pollu-tion shows increasingly serious impacts on the topography and geomorphology of offshore and coastal areas, including coastal degradation, retreating coastlines and estuary delta erosion. Offshore sedimenta-tion processes are strongly influenced by the pH changes of terrestrial discharges, and sedimentary dynamics have become extremely acute and complex due to offshore pollution. The seabed topography and hydrodynamic environment determine the fate and transport of pollutants entering offshore regions. Coastal estuaries, port basins and lagoons that have relatively moderate ocean currents and winds are more likely to accumulate pollutants. Offshore regions and undersea canyons can be used as conduits for transporting pollutants from the continent to the seabed. It is particularly noteworthy that the spa-tial/temporal distribution of species, community structures, and ecological functions in offshore areas have undergone unprecedented changes in recent decades. Due to increasing offshore pollution, the stable succession and development trend of marine ecosystems has been broken. It is thus important to identify and regulate the quantity, composition and transportation of pollutants in offshore regions and their behavior in marine ecosystems. In particular, crucial actions for stabilizing marine ecosystems, including increasing species and biodiversity, should be implemented to enhance their anti-interference capabilities. This review provides an overview of the current situation of offshore pollution, as well as major trends of pollutant fate and transportation from continent to marine ecosystems, transformation of pollutants in sediments, and their bioaccumulation and diffusion. This study retrospectively reviews the long-term geological evolution of offshore pollution from the perspective of marine geology, and analyses their long-term potential impacts on marine ecosystems. Due to ecological risks associated with pollutants released from offshore sediments, more research on the influence of global offshore pollution based on marine geology is undoubtedly needed. (c) 2022 China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).
英文关键词	Global offshore pollution; Geological evolution; Sedimentation; Marine ecosystem; Coastal area
语种	英语
WOS研究方向	Geosciences, Multidisciplinary
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000828371400001
来源期刊	GEOSCIENCE FRONTIERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280999
作者单位	Nankai University; Chinese Academy of Sciences; Institute of Geology & Geophysics, CAS; China University of Petroleum
推荐引用方式 GB/T 7714	Zhou, Qixing,Wang, Simin,Liu, Jiaqi,et al. Geological evolution of offshore pollution and its long-term potential impacts on marine ecosystems[J],2022,13(5).
APA	Zhou, Qixing.,Wang, Simin.,Liu, Jiaqi.,Hu, Xiangang.,Liu, Yuxia.,...&Wu, Xiaotong.(2022).Geological evolution of offshore pollution and its long-term potential impacts on marine ecosystems.GEOSCIENCE FRONTIERS,13(5).
MLA	Zhou, Qixing,et al."Geological evolution of offshore pollution and its long-term potential impacts on marine ecosystems".GEOSCIENCE FRONTIERS 13.5(2022).