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Author : Jianfang Chen
Release : 2022-09-26
Genre : Science
Kind : eBook
Book Rating : 765/5 ( reviews)
Book Synopsis Eutrophication, Algal Bloom, Hypoxia and Ocean Acidification in Large River Estuaries by : Jianfang Chen
Download or read book Eutrophication, Algal Bloom, Hypoxia and Ocean Acidification in Large River Estuaries written by Jianfang Chen. This book was released on 2022-09-26. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jianzhong Su
Release : 2020
Genre :
Kind : eBook
Book Rating : 746/5 ( reviews)
Book Synopsis Hypoxia and Ocean Acidification in Two Large Eutrophic Estuaries by : Jianzhong Su
Download or read book Hypoxia and Ocean Acidification in Two Large Eutrophic Estuaries written by Jianzhong Su. This book was released on 2020. Available in PDF, EPUB and Kindle. Book excerpt: Eutrophication-induced hypoxia in the coastal oceans has increased in spatial extent, duration, and severity since at least the 1950s. The sources of organic matter that fuels microbial degradation remain an issue closely related to the policy-making and management strategies. The Pearl River Estuary and the Chesapeake Bay, two of the largest estuaries in the world, both suffer from eutrophication and subsequent hypoxia with different severity under distinct hydrological settings and physical forcing. We conducted field surveys in these two large eutrophic estuaries to reveal the spatial distributions of carbonate system and oxygen, to distinguish the main biogeochemical control, and to quantify the relative contributions of allochthonous (terrestrial) and autochthonous (marine) organic matter to oxygen consumption in the hypoxic zones. Eutrophication can also enhance ocean acidification in the coastal regions. However, less is known about how eutrophic and seasonally hypoxic and anoxic water bodies resist coastal acidification. Based on a spatially-decoupled patterns of removal and addition of Ca2+, TA, and DIC along the main stem of the Chesapeake Bay as well as mineralogical evidence, we reveal that the recovering submerged aquatic vegetation induced by sustained nutrient reduction can serve as an efficient factory to produce CaCO3 solids, which are subsequently transported into the downstream corrosive subsurface waters, and dissolve to buffer pH decrease. This positive feedback to coastal restoration can shed light on eutrophication and acidification studies in coastal systems emerging with recovery signs.
Author : Robert J. Livingston
Release : 2000-11-27
Genre : Science
Kind : eBook
Book Rating : 623/5 ( reviews)
Book Synopsis Eutrophication Processes in Coastal Systems by : Robert J. Livingston
Download or read book Eutrophication Processes in Coastal Systems written by Robert J. Livingston. This book was released on 2000-11-27. Available in PDF, EPUB and Kindle. Book excerpt: Derived from an unprecedented research effort covering over 31 years in a series of studies of 7 major river-estuaries, Eutrophication Processes in Coastal Systems presents a comprehensive and current review of the nature of the eutrophication process and how short- and long-term nutrient loading affects marine systems. This unique book is the culmination of the most advanced research to date on how coastal systems work. Based on an 11 year interdisciplinary study of the Perdido Bay System, Dr. Robert J. Livingston's groundbreaking work offers evidence for significant findings such as: Nutrient concentration gradients in fresh water as it entered the bay were stimulatory to phytoplankton blooms Species that showed distinctive seasonal and interannual successions dominated plankton blooms High relative dominance of bloom species was associated with significant reduction of phytoplankton species richness and diversity The blooms were associated with major reductions of infaunal and epibenthic macroinvertibrates, forcing a serious disruption of the food webs and losses of secondary production Eutrophication Processes in Coastal Ecosystems goes beyond its innovative analyses of how estuarine and coastal systems have responded to fundamental alterations of the eutrophication process. Dr. Livingston's book presents the case that bloom impacts must be reviewed against the background conditions that include periodic changes brought on by drought and anthropogenous dredging. It points to the critical need for further study of phytoplankton communities and the connection between plankton blooms, sediment deterioration, and low secondary production.
Author :
Release : 2007
Genre : Estuarine ecology
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Effects of Nutrient Enrichment in the Nation's Estuaries by :
Download or read book Effects of Nutrient Enrichment in the Nation's Estuaries written by . This book was released on 2007. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Abid A. Ansari
Release : 2010-10-17
Genre : Technology & Engineering
Kind : eBook
Book Rating : 256/5 ( reviews)
Book Synopsis Eutrophication: causes, consequences and control by : Abid A. Ansari
Download or read book Eutrophication: causes, consequences and control written by Abid A. Ansari. This book was released on 2010-10-17. Available in PDF, EPUB and Kindle. Book excerpt: Eutrophication continues to be a major global challenge to water quality scientists. The global demand on water resources due to population increases, economic development, and emerging energy development schemes has created new environmental challenges to global sustainability. Eutrophication, causes, consequences, and control provides a current account of many important aspects of the processes of natural and accelerated eutrophication in major aquatic ecosystems around the world. The connections between accelerated eutrophication and climate change, chemical contamination of surface waters, and major environmental and ecological impacts on aquatic ecosystems are discussed. Water quality changes typical of eutrophication events in major climate zones including temperate, tropical, subtropical, and arid regions are included along with current approaches to treat and control increased eutrophication around the world. The book provides many useful new insights to address the challenges of global increases in eutrophication and the increasing threats to biodiversity and water quality.
