搜索结果: 1-12 共查到“海洋地质学 land”相关记录12条 . 查询时间(0.412 秒)
Researchers at the Woods Hole Oceanographic Institution and other institutions have found that delta areas worldwide have gained land in the past 30 years, despite river damming. But recent land gains...
Mass extinction of land and sea biodiversity 250 million years ago not simultaneous（图）
Mass extinction land sea biodiversity 250 million years ago simultaneous
2019/12/13
Some 250 million years ago, simultaneous mass extinctions of marine and terrestrial life occurred in an event known as the End-Permian. Or so scientists believed.New research led by Colby College geol...
Lost Continent Of Zealandia:Scientists Return From Expedition To Sunken Land（图）
Lost Continent Zealandia Scientists Expedition Sunken Land
2017/10/24
After a nine-week voyage to study the lost, submerged continent of Zealandia in the South Pacific, a team of 32 scientists from 12 countries has arrived in Hobart, Tasmania, aboard the research vessel...
Changes in the vertical distribution of primary production in response to land-based nitrogen loading
Terrestrial nitrogen load production
2014/10/16
Changes in the vertical distribution of primary production in response to land-based nitrogen loading。
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...
Preliminary studies on physical and chemical processes in the subsurface system in the land reclaimed from the sea
Land reclamation coastal process groundwater flow physiochemical reactions
2009/1/16
Land reclamation has played a significant role in the urban development process in coastal areas in many countries. Over the last 20 years, land reclamation has gained much popularity especially along...
Spatial variability of climate and land-use effects on lakes of the northern Great Plains
Spatial variability climate land-use on lakes of the northern Great Plains
2014/4/21
Evaluation of the effects of climate change and human activities on lakes requires improved understanding of how stressors interact and the degree to which individual sentinel lakes represent broad sp...
Hydrogeomorphic features mediate the effects of land use/cover on reservoir productivity and food webs
Hydrogeomorphic land use cover on reservoir productivity food webs
2014/4/18
Although effects of land use/cover on nutrient concentrations in aquaticsystems are well known, half or more of the variation in nutrient concentration remains unexplained by land use/cover alone. Hyd...
Assimilatory uptake rather than nitrification and denitrification determines nitrogen removal patterns in streams of varying land use
Assimilatory uptake nitrification denitrification deter nitrogen removal patterns in streams of varying land use
2014/4/18
Agricultural and urban land use increase nitrogen (N) concentrations in streams, which can saturate biotic demand by plants, algae, and bacteria via assimilative uptake, and by nitrification and denit...
Role of wetlands and developed land use on dissolved organic nitrogen concentrations and DON/TDN in northeastern U.S. rivers and streams
Role of wetlands developed land dissolved organic nitrogen concentrations DON/TDN northeastern U.S. rivers and streams
2014/5/19
Previous studies have shown that watersheds with significant human development (i.e., urban and agricultural land use) generally have higher concentrations and fluxes of dissolved inorganic nitrogen (...
A carbon isotope method to quantify groundwater discharge at the land-sea interface
carbon isotope quantify groundwater discharge land-sea interface
2014/5/20
We present a new method to characterize and quantify groundwater discharge to estuaries and the coastal ocean. Using data from the Pages Creek estuary in the Cape Fear region of southeastern North Car...
The influence of watershed land use on lake N : P in a predominantly agricultural landscape
watershed land lake N : P a predominantly agricultural
2014/6/9
This study tests the hypothesis that lakes in watersheds dominated by row-crop agriculture (e.g., maize or soybeans) have systematically higher N: P than lakes in watersheds with large tracts of pastu...