搜索结果: 1-15 共查到“海洋科学 eutrophication”相关记录33条 . 查询时间(0.078 秒)
The Role of Eutrophication in the Global Proliferation of Harmful Algal Blooms
Eutrophication Global Proliferation Harmful Algal Blooms
2015/7/27
Cultural eutrophication, the pollution of coastal waters by nutrients, is a result of population growth, food production (agriculture, animal operations and aquaculture), and energy production and con...
Eutrophication-Driven Deoxygenation in the Coastal Ocean
Eutrophication-Driven Deoxygenation Coastal Ocean
2015/7/17
Human activities, especially increased nutrient loads that set in motion a cascading chain of events related to eutrophication, accelerate development of hypoxia (lower oxygen concentration) in many a...
The extent that natural lakes in the United States of America have been changed by cultural eutrophication
natural lakes the United States of America
2014/4/2
We used paleolimnological data for 240 lakes from the U.S. Environmental Protection Agency’s (USEPA)
2007 National Lakes Assessment to estimate the extent that natural lakes in the coterminous United...
Regional-scale effects of eutrophication on ecosystem structure and services of seagrass beds
Regional-scale effects eutrophication ecosystem structure services of seagrass beds
2014/4/3
Using large-scale field surveys across 12 estuaries in two provinces in Atlantic Canada, we analyzed changes in phytoplankton and benthic macroalgal communities as well as the canopy structure of eelg...
Nitrogen fixation may not balance the nitrogen pool in lakes over timescales relevant to eutrophication management
Nitrogen fixation may not balance nitrogen pool in lakes over timescales relevant eutrophication management
2014/4/17
We explored multiyear linear trends in nutrient concentrations, nitrogen (N) : phosphorus (P) ratio, and phytoplankton biomass within the 37-yr, whole-ecosystem nutrient enrichment experiment in Lake ...
Evidence of warming effects on phytoplankton productivity rates and their dependence on eutrophication status
warming effects phytoplankton productivity rates eutrophication status
2014/4/17
Using 31-yr data from measurements in a lake that has experienced change in eutrophication status, I showed that the effects of global warming on chlorophyll a (Chl a)–normalized maximum rates of phot...
Effects of land use, urbanization, and climate variability on coastal eutrophication in the Baltic Sea
land use urbanization climate variability coastal eutrophication in the Baltic Sea
2014/4/17
Sedimentary records of organic matter inputs (stable nitrogen isotopes [d15N], nitrogen [N], and carbon [C] content), phytoplankton abundance (pigments, stable carbon isotopes [d13C]), and community c...
Carbonate chemistry in the coastal zone responds more strongly to eutrophication than to ocean acidification
Carbonate chemistry in the coastal zone responds more strongly eutrophication ocean acidification
2014/4/16
The accumulation of anthropogenic CO2in the ocean has altered carbonate chemistry in surface waters since preindustrial times and is expected to continue to do so in the coming centuries. Changes in c...
Salt marshes and eutrophication: An unsustainable outcome
An unsustainable outcome Salt marshes
2014/4/17
Most plant production by emergent coastal marshes occurs belowground. This belowground production adds
to the accumulation of organic matter sustaining salt marshes as sea level rises, thus preventin...
The effect of long-term spatiotemporal variations in urbanization-induced eutrophication on a benthic ecosystem, Osaka Bay, Japan
spatiotemporal variations urbanization-induced eutrophication a benthic ecosystem Osaka Bay Japan
2014/4/22
Detailed spatiotemporal patterns of the influence of urbanization-induced eutrophication on a metazoan benthic community in Osaka Bay were determined using sediment cores and fossil ostracode assembla...
Summer algal blooms in shallow estuaries: Definition, mechanisms, and link to eutrophication
Summer algal blooms in shallow estuaries: Definition, mechanisms, and link to eutrophication
2014/4/22
We propose a definition for identification of blooms and use this definition to investigate the underlying mechanisms of summer blooms and their link to nutrient enrichment. Blooms were defined as chl...
Eutrophication of ancient Lake Ohrid: Global warming amplifies detrimental effects of increased nutrient inputs
Eutrophication of ancient Lake Ohrid Global warming amplifies detrimental effects increased nutrient inputs
2014/4/22
Lake Ohrid in southeastern Europe is one of the few ancient, long-lived lakes of the world, and contains more than 200 endemic species. On the basis of integrated monitoring of internal and external n...
Investigating the use of macrophyte stable C and N isotopic ratios as indicators of wetland eutrophication: Patterns in the P-affected Everglades
macrophyte stable C N isotopic ratios wetland eutrophication Patterns in the P-affected Everglades
2014/5/5
We investigated the use of stable C and N isotopic ratios as indicators of shifts in nutrient limitation of aquatic macrophytes in native Typha (Typha domingensis Pers.) and Cladium (Cladium jamaicens...
Long-term trends in eutrophication and nutrients in the coastal zone
eutrophication nutrients coastal zone
2014/4/30
We used high-resolution paleoecological records of environmental change to study the rate and magnitude of
eutrophication over the last century in two contrasting coastal ecosystems. A multiproxy app...
Changes in accumulation of organic matter and stable carbon and nitrogen isotopes in sediments of two Slovenian mountain lakes (Lake Ledvica and Lake Planina), induced by eutrophication changes
organic matter table carbon
2014/4/30
We measured accumulation rates of organic carbon (OC) and total nitrogen (TN) and stable carbon (d
13
Corg
) and
nitrogen isotopes (d
15
N) in the sediments of two mountain lakes (Lake Ledvica a...