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搜索结果: 1-15 共查到Biogeochemistry相关记录52条 . 查询时间(0.063 秒)
A new Yale-led study offers a new conceptual framework for understanding the biogeochemistry of watersheds. The framework combines hydrologic and biogeochemical theory to test well established concept...
The Black Sea is a deep (about 2 km) elliptic basin with zonal and meridional dimensions of approximately 1000 km and approximately 400 km, respectively, located roughly between 28° and 42°E longitude...
Steamy, humid mangrove forests; clear blue waters with colorful coral and fish; large river mouths and iceberg-covered coasts; meter-long tubeworms in the dark oceanic abyss: what is common to these v...
Determining the basic processes governing the biogeochemical structure of the water column is a key challenge for today's oceanographers. Knowledge of these basic processes for an aquatic system makes...
The aerosol deposition of continental material and its partial dissolution in the surface ocean exerts an important control on the distribution of iron and other potentially limiting trace metal (TM) ...
The ocean plays a major role in shaping Earth's climate, regulating levels of key atmospheric trace gases such as carbon dioxide on time scales of decades to millennia. Much progress has been made in ...
Changing atmospheric composition due to human activities, primarily carbon dioxide (CO2) emissions from fossil fuel burning, is already impacting ocean circulation, biogeochemistry, and ecology, and m...
Monitoring and predicting the biogeochemical state of the ocean and marine ecosystems is an important application of operational oceanography that needs to be expanded. The accurate depiction of the o...
Arsenic and phosphorus are biochemically very similar, and hence arsenate (As5+) is toxic by interfering with the energy metabolism, in particular during P limitation. However, many phytoplankton deto...
Desert dust perturbs climate by directly and indirectly interacting with incoming solar and outgoing long wave radiation, thereby changing precipitation and temperature, in addition to modifying ocean...
In episodically driven estuaries, nutrient delivery is typically confined to sporadic flow events, followed by intense biogeochemical recycling of nutrients. We document the response of a temperate la...
The role of heterotrophic bacteria in iron recycling, the influence of complexation on iron remineralization,and iron mobilization rates from lithogenic vs. biogenic particulate iron (PFe) were examin...
In the . 590-m deep, tropical Lake Matano (Indonesia), stratification is characterized by weak thermal gradients (, 2uC per 500 m) and weak salinity gradients (, 0.14% per 500 m). These gradients per...
table isotopes of nitrogen (N) were analyzed in modern sediments of mountain lakes, dissolved organic matter(DOM), and sediment cores spanning the past 12,000 yr to test the hypothesis that spatial an...
Global Ocean Biogeochemistry General Circulation Models are useful tools to study biogeochemical processes at global and large scales under current climate and future scenario conditions. The credibil...

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