搜索结果: 1-15 共查到“海洋科学 primary production”相关记录24条 . 查询时间(0.234 秒)
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。
Advective transport of diazotrophs and importance of their nitrogen fixation on new and primary production in the western Pacific warm pool
Advective transport diazotrophs importance their nitrogen fixation new primary production in the western Pacific warm pool
2014/4/2
The western Pacific warm pool (WPWP) is a region of low nutrient and chlorophyll concentrations in which new production is generally considered to be supported by upward fluxes of nitrate from the dee...
Partitioning of primary production among giant kelp (Macrocystis pyrifera), understory macroalgae, and phytoplankton on a temperate reef
giant kelp understory macroalgae phytoplankton
2014/4/4
We experimentally investigated the response of phytoplankton and understory macroalgae to canopies of giant
kelp, Macrocystis pyrifera, by following changes in their biomass and net primary productio...
Terrestrial organic matter and light penetration: Effects on bacterial and primary production in lakes
Terrestrial organic matter light penetration on bacterial primary production in lakes
2014/4/17
We investigated productivity at the basal trophic level in 15 unproductive lakes in a gradient ranging from clear-water to brown-water (humic) lakes in northern Sweden. Primary production and bacteria...
Geochemical processes and chemosynthetic primary production in different thiotrophic mats of the Ha˚kon Mosby Mud Volcano (Barents Sea)
Geochemical processes chemosynthetic primary production different thiotrophic mats of the Ha˚ kon Mosby Mud Volcano
2014/4/16
We have investigated if in a cold seep methane or sulfide is used for chemosynthetic primary production and if
significant amounts of the sulfide produced by anaerobic oxidation of methane are oxidiz...
Direct and indirect coupling of primary production and diel nitrate dynamics in a subtropical spring-fed river
primary production iel nitrate dynamics
2014/4/16
We used high-frequency in situ measurements of nitrate (NO{
3
) and dissolved oxygen (DO) from the springfed Ichetucknee River, Florida, to derive multiple independent estimates of assimilatory nitr...
Thresholds of gross primary production for the metabolic balance of marine planktonic communities
Thresholds of gross primary production metabolic balance marine planktonic communities
2014/4/18
The notion that less productive marine planktonic communities tend to be heterotrophic was tested by synthesizing reported estimates of the relationships between the net community production or commun...
Thresholds of gross primary production for the metabolic balance of marine planktonic communities
marine planktonic communities gross primary production
2014/4/18
The notion that less productive marine planktonic communities tend to be heterotrophic was tested by
synthesizing reported estimates of the relationships between the net community production or commu...
Could stratospheric ozone depletion lead to enhanced aquatic primary production in the polar regions?
stratospheric ozone depletion enhanced aquatic primary production the polar regions
2014/4/21
We study the effects of ozone depletion on primary production in ice-covered and open polar waters using a spectral radiative transfer model combined with a parameterization of the inhibition of marin...
Could stratospheric ozone depletion lead to enhanced aquatic primary production in the polar regions?
Could stratospheric ozone depletion enhanced aquatic primary production the polar regions?
2014/4/18
We study the effects of ozone depletion on primary production in ice-covered and open polar waters using a spectral radiative transfer model combined with a parameterization of the inhibition of marin...
The effects of grazing by the snail, Lymnaea elodes, on benthic N2 fixation and primary production in oligotrophic, arctic lakes
snail Lymnaea elodes on benthic N2 fixation primary production oligotrophic arctic lakes
2014/4/21
This study assessed whether grazing by the snail, Lymnaea elodes, limits benthic dinitrogen (N2) fixation and primary production in nitrogen (N)-limited oligotrophic lakes near Toolik Field Station on...
Primary production in two shallow lakes with contrasting plant form dominance: A paradox of enrichment?
Primary production contrasting plant
2014/5/5
We estimated total lake plant biomass and primary net production in two shallow Swedish lakes that differ in
nutrient loading and plant form dominance. In clearwater Lake Krankesjo¨n (10 mg chlorophy...
Phytoplankton response to nutrient enrichment in an urbanized estuary: Apparent inhibition of primary production by overeutrophication
Phytoplankton response nutrient enrichment
2014/4/30
Phytoplankton response to nutrients was examined with a 26-yr database from the Delaware Estuary. Biomassnormalized primary production did not increase linearly with increasing nutrient concentrations...
The effect of ultraviolet radiation on freshwater planktonic primary production: The role of recovery and mixing processes
The effect of ultraviolet radiation freshwater planktonic primary production The role of recovery mixing processes
2014/5/13
We used a spectrally resolved kinetic model to calculate ultraviolet radiation (UVR) and photosynthetic active radiation (PAR)-dependent photoinhibitory losses in planktonic primary production in a la...
Threshold of gross primary production for planktonic metabolic balance in the Southern Ocean: An experimental test
Threshold of gross primary production planktonic metabolic balance Southern Ocean An experimental test
2014/5/9
The proposed threshold planktonic gross primary production (GPP) value for O2 of 2.05 mmol m-3 d-1 separating net heterotrophic from net autotrophic communities in the Southern Ocean was tested experi...