搜索结果: 31-45 共查到“海洋科学 lakes”相关记录170条 . 查询时间(0.08 秒)
Generalizations of the Wedderburn number: Parameterizing upwelling in stratified lakes
the Wedderburn number Parameterizing upwelling in stratified lakes
font style='font-size:12px;'>
2014/4/17
The effect of lake geometry on wind-induced upwelling, in a two-layer stratified lake with a variable bottom slope and generic planar shape is investigated. (1) The traditional linearized classificati...
Experimental evidence that pollution with urea can degrade water quality in phosphorus-rich lakes of the Northern Great Plains
pollution urea degrade water quality phosphorus-rich lakes the Northern Great Plains
font style='font-size:12px;'>
2014/4/17
Urea is the most abundant nitrogen (N) fertilizer used on agricultural soils, yet its effects on adjacent aquatic ecosystems are largely unknown. Here 21-d, 3000-liter mesocosm experiments were conduc...
The isotopic and hydrologic response of small, closed-basin lakes to climate forcing from predictive models: Application to paleoclimate studies in the upper Columbia River basin
isotopic hydrologic closed-basin
font style='font-size:12px;'>
2014/4/17
Simulations conducted using a coupled lake-catchment, hydrologic and isotope mass-balance model indicate
that small, closed-basin lakes in north-central Washington are isotopically sensitive to chang...
Drivers of metabolism and net heterotrophy in contrasting lakes
Drivers of metabolism net heterotrophy
font style='font-size:12px;'>
2014/4/16
We investigated the influence of light, nutrients, and organic matter on gross primary production (GPP),
ecosystem respiration (R), and net ecosystem production (NEP 5 GPP 2 R) in a dystrophic forest...
Hypolimnetic oxygen consumption by sediment-based reduced substances in former eutrophic lakes
Hypolimnetic oxygen consumption sediment-based reduced substances former eutrophic lakes
font style='font-size:12px;'>
2014/4/16
We quantified the areal hypolimnetic mineralization rate (AHM; total areal hypolimnetic oxygen depletion including the formation of reduced substances) in two formerly eutrophic lakes based on 20 yr o...
The effect of the exceptionally mild European winter of 2006–2007 on temperature and oxygen profiles in lakes in Switzerland: A foretaste of the future?
the exceptionally mild European winter on temperature oxygen profiles in lakes in Switzerland: A foretaste of the future
font style='font-size:12px;'>
2014/4/16
The European winter of 2006–2007 was unusually mild, with record high mean winter air temperatures comparable with those predicted to become the norm by the end of the current century as a result of c...
Dreissenid mussels (Dreissena polymorphaandDreissena bugensis) reduce microzooplankton and macrozooplankton biomass in thermally stratified lakes
Dreissenid mussels reduce microzooplankton macrozooplankton biomass thermally stratified lakes
font style='font-size:12px;'>
2014/4/16
We conducted a survey of 50 thermally stratified lakes with similar nutrient concentrations and morphometries in Michigan to examine the direct and indirect effects of dreissenid mussels on the biomas...
Effects of fetch and dissolved organic carbon on epilimnion depth and light climate in small forest lakes in southern Sweden
ight climate epilimnion depth
font style='font-size:12px;'>
2014/4/16
We sampled small (0.03 to 3.3 km2
surface area) forest lakes in southern Sweden during two summers to
investigate how concentration of dissolved organic carbon (DOC) and lake size influence epilimni...
Methanogenic pathway, 13 C isotope fractionation, and archaeal community composition in the sediment of two clear-water lakes of Amazonia
isotope fractionation archaeal community composition
font style='font-size:12px;'>
2014/4/16
We studied the methanogenic pathway and archaeal community composition in the sediment of two clearwater lakes, Lake Batata and Lake Mussura, in Amazonia. We measured CH4 production and d13
C of CO2,...
Comparative estimate of P fluxes in lakes: A comment on ‘‘Fish decomposition in boreal lakes and biogeochemical implications’’ by Chidami and Amyot (2008)
Comparative estimate P fluxes in lakes Fish decomposition in boreal lakes biogeochemical implications Chidami Amyot
font style='font-size:12px;'>
2014/4/16
The contribution of fish and their relative importance in the nutrient dynamics of lakes (sink vs. source) continue to be a topic of debate (Mehner et al. 2007; Wurtsbaugh 2007; Sereda et al. 2008b). ...
Response to ‘‘Comparative estimate of P fluxes in lakes’’ by J. M. Sereda and J. J. Hudson
Comparative estimate of P fluxes in lakes J. M. Sereda J. J. Hudson
font style='font-size:12px;'>
2014/4/16
Sereda and Hudson (2010) are commenting on a carcassbound phosphorus (P) flux estimate reported in an article by Chidami and Amyot (2008). This article mainly presents in situ experimental evidence on...
Regulation of the nitrogen biogeochemistry of mountain lakes by subsidies of terrestrial dissolved organic matter and the implications for climate studies
the nitrogen biogeochemistry mountain lakes subsidies terrestrial dissolved organic matter the implications for climate
font style='font-size:12px;'>
2014/4/16
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...
No empirical evidence for community-wide top-down control of prey fish density and size by fish predators in lakes
No empirical evidence community-wide top-down control prey fish density size by fish predators in lakes
font style='font-size:12px;'>
2014/4/16
I tested relationships between fish predator and prey densities or size across 66 lakes of the European temperate zone, covering mean depths between 1 and 22 m and a phytoplankton biomass range betwee...
Long-term patterns of dissolved organic carbon in lakes across eastern Canada: Evidence of a pronounced climate effect
Long-term patterns dissolved organic carbon lakes across eastern Canada a pronounced climate effect
font style='font-size:12px;'>
2014/4/16
We analyzed the 21-yr dynamics of dissolved organic carbon (DOC) in 55 lakes during ice-free periods in five regions across eastern Canada in relation to total solar radiation (TSR),precipitation, air...
Erratum: Chemical stratification in thermally stratified lakes: A chloride mass balance model
Chemical stratification thermally stratified lakes A chloride mass balance model
font style='font-size:12px;'>
2014/4/17
The effect of this correction can best be appreciated by defining the non-dimensional variablesB*5BaandT*5(T(B)2Th)/(Te2Th) and plotting these as a function ofm(Fig. 2). Values ofB*from Eqs. 2 and 3 c...