搜索结果: 1-10 共查到“海洋科学 photochemical”相关记录10条 . 查询时间(0.078 秒)
Photodissolution and other photochemical changes upon irradiation of algal detritus
Photodissolution other photochemical changes
font style='font-size:12px;'>
2014/4/17
Several recent lines of literature point toward strong photoreactivity of phytoplanktonic detritus. We examined
effects of irradiation of algal membrane fragments in various stages of decay, with emp...
Long-term photochemical and microbial decomposition of wetland-derived dissolved organic matter with alteration of13 C:12C mass ratio
photochemical microbial decomposition wetland-derived dissolved organic matter alteration of13 C:12C mass ratio
font style='font-size:12px;'>
2014/4/18
We investigated the long-term photochemical and microbial decomposition of biologically recalcitrant humiclike dissolved organic matter (DOM) leached from a vascular wetland plant, the common rush (Ju...
Photochemical control of copper complexation by dissolved organic matter in Rocky Mountain streams, Colorado
Photochemical control of copper complexation dissolved organic matter Rocky Mountain streams Colorado
font style='font-size:12px;'>
2014/4/23
We investigated photochemical, seasonal, and source effects on copper (Cu) complexation by dissolved organic matter (DOM). Cu-DOM complexation regulates Cu toxicity by decreasing the activity of the c...
Photochemical production of dissolved organic carbon from resuspended sediments
Photochemical production dissolved organic carbon resuspended sediments
font style='font-size:12px;'>
2014/5/5
A series of controlled photolysis experiments using simulated sunlight was conducted in the presence and absence of estuarine bottom sediments to address the role of sediment resuspension on dissolved...
Microbial and photochemical reactivity of fluorescent dissolved organic matter in a coastal upwelling system
Microbial and photochemical reactivity fluorescent dissolved organic matter coastal upwelling system
font style='font-size:12px;'>
2014/5/4
We observed significant changes in the dissolved oxygen content and the fluorescence of humic substances and dissolved aromatic amino acids after 24 h light and dark incubations in the coastal upwelli...
Biological and photochemical production of dissolved gaseous mercury in a boreal lake
Biological and photochemical production dissolved gaseous mercury boreal lake
font style='font-size:12px;'>
2014/5/19
We used in situ experiments and measured depth profiles of dissolved gaseous mercury (DGM) to investigate the relative contribution of photochemical versus biological processes on the production of DG...
Competition between biological and photochemical processes in the mineralization of dissolved organic carbon
Competition biological photochemical processes
font style='font-size:12px;'>
2014/5/14
The photo- and bioreactive components of dissolved organic matter (DOM) from three different environments were
determined during long-term decomposition experiments. Terrigenous DOM was collected fro...
Photochemical effects on the interaction of enzymes and dissolved organic matter in natural waters
enzymes dissolved organic matter natural waters
font style='font-size:12px;'>
2014/5/21
Extracellular enzymes such as phosphatase (Pase) and glucosidase (Gase) can be inactivated in natural waters through photochemical processes. In this study, we examined the mechanisms involved in enzy...
Photochemical reactivity of siderophores produced by marine heterotrophic bacteria and cyanobacteria, based on characteristic Fe(III) binding groups
Photochemical reactivity siderophores produced marine heterotrophic bacteria cyanobacteria Fe(III) binding groups
font style='font-size:12px;'>
2014/5/20
Siderophores, high-affinity Fe(III) ligands produced by microorganisms to facilitate iron acquisition, might contribute significantly to dissolved Fe(III) complexation in ocean surface waters. In prev...
Spatial and diurnal dynamics of dissolved organic matter (DOM) fluorescence and H2O2 and the photochemical oxygen demand of surface water DOM across the subtropical Atlantic Ocean
Spatial and diurnal dynamics dissolved organic matter DOM fluorescence and H2O2 photochemical oxygen demand surface water DOM across subtropical Atlantic Ocean
font style='font-size:12px;'>
2014/6/9
Diurnal dynamics of dissolved organic matter (DOM) fluorescence and hydrogen peroxide (H2O2) concentrations were followed in the upper 100 m of the water column at five stations across the subtropical...