Results 21 to 30 of about 1,681,562 (361)

The color of refractory organic carbon

BSGF - Earth Sciences Bulletin, 2018
Organic matter studies find an echo within different topics such as biogeochemical cycles, processes occurring in continental surfaces, anthropogenic activities, climate science, earth and planetary sciences, etc.
Debret Maxime, Copard Yoann, Van Exem Antonin, Bessereau Geneviève, Haeseler Frank, Rouzaud Jean-Noël   +5 more
doaj   +1 more source

Characteristics and factors influencing soil organic carbon composition by vegetation type in spoil heaps

Frontiers in Plant Science, 2023
IntroductionThe variation of organic carbon content in spoil heaps is closely related to improving soil structure, maintaining soil fertility, and regulating soil carbon cycling balance.
Yiwen Yao, Yiwen Yao, Quanhou Dai, Quanhou Dai, Ruxue Gao, Ruxue Gao, Xingsong Yi, Xingsong Yi, Yong Wang, Yong Wang, Zeyin Hu, Zeyin Hu   +11 more
doaj   +1 more source

A Machine Learning (kNN) Approach to Predicting Global Seafloor Total Organic Carbon

Global Biogeochemical Cycles, 2019
Seafloor properties, including total organic carbon (TOC), are sparsely measured on a global scale, and interpolation (prediction) techniques are often used as a proxy for observation. Previous geospatial interpolations of seafloor TOC exhibit gaps where
Taylor R. Lee, W. Wood, B. Phrampus
semanticscholar   +1 more source

High-resolution Quaternary record of marine organic carbon content in the hemipelagic sediments of the Japan Sea from bromine counts measured by XRF core scanner

Progress in Earth and Planetary Science, 2019
The marine organic carbon content in sediments is a useful tool for reconstructing past productivity in the ocean. Bromine has been proposed as a useful proxy for marine organic carbon, since bromine is more concentrated in marine organic matter compared
Arisa Seki, Ryuji Tada, Shunsuke Kurokawa, Masafumi Murayama   +3 more
doaj   +1 more source

Assessment of soil quality after constructing a closure dam on a river [PDF]

International Journal of Human Capital in Urban Management, 2023
BACKGROUND AND OBJECTIVE: Reducing the salinity intrusion from sea water, a closure dam has been constructed on Little Feni River at Musapur Union in 2016.
M.S Khan, I.J. Mousumi, M.H. Jaman, M.M. Billah   +3 more
doaj   +1 more source

Atmospheric CO2 consumption by continental erosion : present-day controls and implications for the last glacial maximum [PDF]

, 1998
The export of carbon from land to sea by rivers represents a major link in the global carbon cycle. For all principal carbon forms, the main factors that control the present-day fluxes at the global scale have been determined in order to establish global
Amiotte Suchet, Philippe, Ludwig, Wolfgang, Munhoven, Guy, Probst, Jean-Luc   +3 more
core   +2 more sources

Evaluation of the Total Organic Carbon (TOC) Using Different Artificial Intelligence Techniques

Sustainability, 2019
Total organic carbon (TOC) is an essential parameter used in unconventional shale resources evaluation. Current methods that are used for TOC estimation are based, either on conducting time-consuming laboratory experiments, or on using empirical ...
A. Mahmoud, S. Elkatatny, Abdulwahab Ali, Mohamed Abouelresh, A. Abdulraheem   +4 more
semanticscholar   +1 more source

Zooplankton response to organic carbon level in lakes of differing trophic states

Knowledge and Management of Aquatic Ecosystems, 2014
Water eutrophication is associated with an increase in the organic carbon content (both particulate and dissolved forms), which may affect the functioning of the zooplankton community.
Bowszys M., Dunalska J.A., Jaworska B.
doaj   +1 more source

Total Observed Organic Carbon (TOOC): A synthesis of North American observations [PDF]

, 2007
Measurements of organic carbon compounds in both the gas and particle phases measured upwind, over and downwind of North America are synthesized to examine the total observed organic carbon (TOOC) over this region.
Aiken, A. C., Allan, J. D., Apel, E., Atlas, E. L., Baker, A. K., Bates, T. S., Beyersdorf, A. J., Blake, D. R., Campos, T., Coe, H., Crounse, J. D., de Gouw, J. A., DeCarlo, P. F., Dunlea, E. J., Flocke, F. M., Fried, A., Goldan, P., Goldstein, A. H., Griffin, R. J., Heald, C. L., Herndon, S. C., Holloway, J. S., Holzinger, R., Jimenez, J. L., Junkermann, W., Kuster, W. C., Lewis, A. C., Meinardi, S., Millet, D. B., Onasch, T., Polidori, A., Quinn, P. K., Riemer, D. D., Roberts, J. M., Salcedo, D., Sive, B., Swanson, A. L., Talbot, R., Warneke, C., Weber, R. J., Weibring, P., Wennberg, P. O., Wittig, A. E., Worsnop, D. R., Zhang, R., Zheng, J., Zheng, W.   +46 more
core   +7 more sources

Effects of land use on Soil Organic Carbon fractions in soils of Njala Landscape in Sierra Leone [PDF]

, 2016
Soil organic carbon fractions reflect the difference in soil organic carbon from one land use to another, and it can be regarded as an indication of the degree of soil organic carbon deterioration or improvement.
Amara, D. M. (Denis), Kamanda, P. J. (Philip), Kamara, A. M. (Augustine), Koroma, S. A. (Sahr), Saidu, D. H. (Daniel)   +4 more
core   +1 more source