Results 41 to 50 of about 195,843 (306)
Efecto de diferentes tipos de uso de la tierra en las fracciones del carbono orgánico del suelo
Pastos y Forrajes, 2023 Objectives: To evaluate the effect of different types of land use on the organic carbon fractions of a chromic vertisol soil. Materials and Methods: The research was developed in a permanent observation point, located in Holguin province. Soil samples
George Martín-Gutiérrez +4 more
doaj
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
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Organic atmospheric particulate material [PDF]
, 2003 Carbonaceous compounds comprise a substantial fraction of atmospheric particulate matter (PM). Particulate organic material can be emitted directly into the atmosphere or formed in the atmosphere when the oxidation products of certain volatile organic ...
Pankow, John F., Seinfeld, John H.
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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 +4 more
openaire +3 more sources
Seasonal Growth Rate of the Sponge Haliclona oculata (Demospongiae: Haplosclerida) [PDF]
, 2008 The interest in sponges has increased rapidly since the discovery of potential new pharmaceutical compounds produced by many sponges. A good method to produce these compounds by using aquaculture of sponges is not yet available, because there is ...
Marieke Koopmans +29 more
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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 +3 more
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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 +3 more
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Seasonal variability in concentration, composition, age, and fluxes of particulate organic carbon exchanged between the floodplain and Amazon river [PDF]
, 2013 International audienceThe composition, sources, and age of particulate organic matter were determined in an Amazonian river-floodplain system during rising, high, falling, and low water periods over 7 yr (1999-2006), and a mass balance for total organic ...
Amorim, M. +7 more
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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
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Dual stable isotope abundances unravel trophic position of estuarine nematodes [PDF]
, 2005 The role and quantitative importance of free-living nematodes in marine and estuarine soft sediments remain enigmatic for lack of empirical evidence on the feeding habits and trophic position of most nematode species.
BOUILLON, S, GALLUCCI, F, Moens, Tom
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