搜索结果: 1-15 共查到“理学 organic matter”相关记录183条 . 查询时间(0.125 秒)
An experimental test of climate change effects in northern lakes: Increasing allochthonous organic matter and warming alters autumn primary production
ClimateChange lakes production GPP cDOM
2021/7/26
Climate changes are predicted to influence gross primary production (GPP) of lakes directly through warming and indirectly through increased loads of allochthonous coloured dissolved organic matter (c...
High cadmium pollution from sediments in a eutrophic lake caused by dissolved organic matter complexation and reduction of manganese oxide
eutrophication lake pollution dissolved organic matter DOM DGT
2021/7/27
Eutrophication and metal pollution are global environmental problems. The risk of metal pollution is high in the eutrophic lakes because of high mobility of metal in sediments.
Organic matter,bacteria doom sea stars to oxygen depletion（图）
Organic matter bacteria doom sea stars oxygen depletion
2021/1/28
For more than seven years, a mysterious wasting disease has nearly killed off sea star populations worldwide. Many of these species are at the brink of extinction.New Cornell University-led resea...
中国地质大学科学技术发展院张帆（博士研究生），焦养泉*，等. 资源学院 构造与油气资源教育部重点实验室. AAPG Bulletin, JAN 2019. Enhancement of organic matter maturation due to radiogenic heat from uranium: A case study from the Ordos Basin in China
砂岩型；铀矿；碳质碎屑；成熟；演化；催化效应
2021/10/20
近日，中国地质大学资源学院焦养泉教授团队在国际顶级期刊《AAPG Bulletin》上刊发研究成果，首次报道发现了砂岩型铀矿对围岩碳质碎屑的成熟演化具有催化效应，即“碳质碎屑Ro的放射性催化效应”。国际同行给予了高度评价："I very welcome you case study on the radiogenic heat of uranium enhancement of organic m...
Organic matter and crude protein digestibility predicted from nitrogen and fibre fractionation of festulolium hybrids
nitrogen fractions Cornell system nutritive value ruminant
2018/11/23
The objectives of the experiment were to study nitrogen fractions of the Cornell Net Carbohydrate and Protein System (CNCPS) and digestibility of organic matter (OMD) and crude protein (CPD) along wit...
Carbon isotope ratios of organic matter in Bering Sea settling particles: Extremely high remineralization of organic carbon derived from diatoms
diatoms coccolithophores carbon isotope organic carbon remineralization rain ratio
2017/4/10
The carbon isotope ratios of organic carbon in settling particles collected in the highly-diatom-productive Bering Sea
were determined. Wet decomposition was employed to oxidize relatively fresh orga...
Photochemical bleaching of fluorescent dissolved organic matter in the subtropical North Pacific Ocean
marine humic-like fluorescent dissolved organic matter photobleaching solar irradiation size distribution hydrophobic/ hydrophilic properties Abbreviations: DIC dissolved in
2017/4/10
We examined the molecular weight distribution of the fluorescence intensity of FDOMM and dissolved organic carbon
(DOC) concentrations in the subtropical western North Pacific, in order to characteri...
Using satellite hyperspectral imagery to map soil organic matter, total nitrogen and total phosphorus
total nitrogen total phosphorus partial least squares
2015/1/16
Up-to-date and accurate information on soil properties is important for precision farming and environmental management. The spatial information of soil properties allows adjustments of fertilizer appl...
Physicochemical changes in pyrogenic organic matter (biochar) after 15 months of field aging
Add into the fire organic matter and biochar soil chemistry crop yield biochar mixture
2015/1/6
Predicting the effects of pyrogenic organic matter (OM) addition (either natural or intentional as in the case of biochar amendment) on soil chemistry and crop yields has been hampered by a lack of un...
Short-term changes in soil Munsell colour value, organic matter content and soil water repellency after a spring grassland fire in Lithuania
Short-term changes soil Munsell colour value organic matter content soil water repellency spring grassland fire Lithuania
2015/1/6
Fire is a natural phenomenon with important implications on soil properties. The degree of this impact depends upon fire severity, the ecosystem affected, topography of the burned area and post-fire m...
Long residence times of rapidly decomposable soil organic matter: application of a multi-phase, multi-component, and vertically resolved model (BAMS1) to soil carbon dynamics
Long residence times rapidly decomposable soil organic matter multi-phase multi-component vertically resolved model soil carbon dynamics
2014/12/19
Accurate representation of soil organic matter (SOM) dynamics in Earth system models is critical for future climate prediction, yet large uncertainties exist regarding how, and to what extent, the sui...
Models of soil organic matter decomposition: the SOILR package, version 1.0
soil organic matter decomposition
2014/12/10
Soil organic matter decomposition is a very important process within the Earth system because it controls the
rates of mineralization of carbon and other biogeochemical
elements, determining their &...
Inversion And Analysis Of Chromophoric Dissolved Organic Matter In Estuarine And Coastal Regions Using Hyperspectral Remote Sensing
Earth sciences Chromophoric dissolved organic matter Climate change Inversion Ocean color Remote sensing Estuaries
2014/10/22
CDOM (chromophoric dissolved organic matter) plays an important role in determining underwater light field and aquatic photochemical and biological processes. Knowing CDOM properties, origin, sink, co...
Widespread variability in overnight patterns of ecosystem respiration linked to gradients in dissolved organic matter, residence time, and productivity in a global set of lakes
The ecological system lakes
2014/10/16
Widespread variability in overnight patterns of ecosystem respiration linked to gradients in dissolved organic matter, residence time, and productivity in a global set of lakes。
Production of dissolved organic matter by phytoplankton and its uptake by heterotrophic prokaryotes in large tropical lakes
Production of dissolved organic matter by phytoplankton heterotrophic prokaryotes large tropical lakes
2014/7/10
In pelagic ecosystems, phytoplankton extracellular release can extensively subsidize the heterotrophic prokaryotic carbon demand. Time-course experiments were carried out to quantify primary productio...