搜索结果: 1-6 共查到“海洋地质学 availability”相关记录6条 . 查询时间(0.03 秒)
d13 C is a signature of light availability and photosynthesis in seagrass
d13 C a signature of light availability photosynthesis in seagrass
2014/4/2
We explored the role of light-saturated (carbon-limited) photosynthesis ond13C of turtlegrass (Thalassia testudinumBanks ex Ko¨ nig) populations from the clear, blue waters of the Great Bahama Bank an...
Zinc availability and alkaline phosphatase activity in Emiliania huxleyi: Implications for Zn–P co-limitation in the ocean
Zinc availability alkaline phosphatase activity
2014/4/23
Zinc (Zn) serves as a cofactor in several extracellular phosphatases, which allow microorganisms to acquire
phosphorus from organic P compounds. In oligotrophic ocean water, where both phosphate and ...
Bacterial metabolism and growth efficiency in lakes: The importance of phosphorus availability
Bacterial metabolism growth effi ciency
2014/5/14
We investigated bacterial responses to variations in dissolved organic carbon (DOC) and nutrient availability by
a comparative analysis of bacterial metabolism in lakes ranging from oligotrophic to e...
Relationship of nitrogen isotope fractionation to phytoplankton size and iron availability during the Southern Ocean Iron RElease Experiment (SOIREE)
nitrogen isotope fractionation phytoplankton size iron availability the Southern Ocean Iron RElease
2014/5/20
The 15N composition of sediments has been used as a proxy for nitrate utilization in surface waters to assess the role of Southern Ocean export production in glacial/interglacial changes in atmospheri...
Biogeochemical effects of iron availability on primary producers in a shallow marine carbonate environment
iron availability primary producers shallow marine carbonate environment
2014/6/9
We completed a synoptic survey of iron, phosphorus, and sulfur concentrations in shallow marine carbonate sediments from south Florida. Total extracted iron concentrations typically were <50 μmol g-1 ...
Phosphorus inactivation by aluminum in the water column and sediments: Lowering of in-lake phosphorus availability in an acidified watershed-lake ecosystem
Phosphorus inactivation aluminum in the water column sediments in-lake phosphorus availability acidified watershed-lake ecosystem
2014/6/17
Acid precipitation has been shown to reduce phosphorus (P) outputs from terrestrial sources. We present field evidence that the in-lake P cycle may also be disrupted in atmospherically acidified water...