Results 31 to 40 of about 34,958 (163)

A Three End-Member Mixing Model Based on Isotopic Composition and Elemental Ratio

Terrestrial, Atmospheric and Oceanic Sciences, 2007
A three end-member mixing model based on nitrogen isotopic composition and organic carbon to nitrogen ratio of suspended particulate matter in an aquatic environment has been developed.
Kon-Kee Liu Shuh-Ji Kao
doaj   +1 more source

Global ocean particulate organic carbon flux merged with satellite parameters [PDF]

Earth System Science Data, 2016
Abstract. Particulate organic carbon (POC) flux estimated from POC concentration observations from sediment traps and 234Th are compiled across the global ocean. The compilation includes six time series locations: CARIACO, K2, OSP, BATS, OFP, and HOT. Efficiency of the biological pump of carbon to the deep ocean depends largely on biologically mediated
Colleen B. Mouw, Audrey Barnett, Galen A. McKinley, Lucas Gloege, Darren Pilcher   +4 more
openaire   +3 more sources

Estimation of Suspended Matter, Organic Carbon, and Chlorophyll-a Concentrations from Particle Size and Refractive Index Distributions

Applied Sciences, 2018
Models of particle density and of organic carbon and chlorophyll-a intraparticle concentration were applied to particle size distributions and particle real refractive index distributions determined from flow cytometry measurements of natural seawater ...
Jacopo Agagliate, Rüdiger Röttgers, Kerstin Heymann, David McKee   +3 more
doaj   +1 more source

Particulate Mercury and Particulate Organic Matter in the Itenez Basin (Bolivia)

Applied Sciences, 2020
In rivers and other freshwater bodies, the presence of mercury can be due to direct contamination by anthropic activities such as gold mining. However, it can also be attributed to atmospheric deposition and erosion, runoff, or lixiviation from ...
Fabiola Guzmán-Uria, Isabel Morales-Belpaire, Dario Achá, Marc Pouilly   +3 more
doaj   +1 more source

Carbon sequestration potential of tea garden soil in northwest Zhejiang and its accumulation characteristic on different fractions of organic carbon

浙江大学学报. 农业与生命科学版, 2016
Organic carbon is the basis of soil system, which plays an important role in the soil quality and regulating the supply of nutrients. Physical, chemical and biological properties and productivity of soil were all closely related to the content and ...
KONG Zhangliang
doaj   +1 more source

Tea cultivation: facilitating soil organic carbon accumulation and altering soil bacterial community—Leishan County, Guizhou Province, Southwest China [PDF]

PeerJ
Background Camellia sinensis is an important cash crop in southwestern China, with soil organic carbon playing a vital role in soil fertility, and microorganisms contributing significantly to nutrient cycling, thus both of them influencing tea tree ...
Yingge Shu, Shan Xie, Hong Fan, Chun Duan, Yuansheng Liu, Zuyong Chen   +5 more
doaj   +2 more sources

Impact of N fertilization on C balance and soil quality in maize-dhaincha cropping sequence [PDF]

Journal of Agricultural Sciences (Belgrade), 2015
Excess N fertilization to achieve high crop yield is a grand old practice in developing countries. However, inorganic nutrient sources considerably replenish soil organic C (SOC).
Sarma Banashree, Bhattacharya Sundar Satya, Gogoi Nirmali, Paul Sreyashi, Baroowa Bhaswatee   +4 more
doaj   +1 more source

Soil macropore structure plays divergent roles in fresh and decomposed particulate organic matter

Communications Earth & Environment
Understanding fresh and decomposed particulate organic matter distributions and their response to macropore structure is crucial for soil carbon stocks.
Tianyu Ding, Zichun Guo, Zizhou Yu, Jiaqi Li, Jianli Liu, Xinhua Peng   +5 more
doaj   +1 more source

Variability in photosynthetic production of dissolved and particulate organic carbon in the North Pacific Subtropical Gyre

Frontiers in Marine Science, 2015
The partitioning of photosynthetically-derived organic carbon between particulate and dissolved phases has important implications for marine carbon cycling.
Donn A. Viviani, Donn A. Viviani, David Michael Karl, David Michael Karl, Matthew J Church, Matthew J Church   +5 more
doaj   +1 more source

Diurnal and seasonal variation of particle and dissolved organic matter release by the coral Acropora tenuis [PDF]

PeerJ, 2018
Release rates of particulate organic carbon and nitrogen (POC and PON) and dissolved organic carbon (DOC) from the scleractinian coral Acropora tenuis were measured during the day and night in summer and winter seasons. Physiological parameters including
Haruko Kurihara, Nao Ikeda, Yu Umezawa
doaj   +2 more sources