Results 11 to 20 of about 742 (235)
Consequences of removal of exotic species (eucalyptus) on carbon and nitrogen cycles in the soil-plant system in a secondary tropical Atlantic forest in Brazil with a dual-isotope approach [PDF]
PeerJ, 2020 The impact of exotic species on heterogeneous native tropical forest requires the understanding on which temporal and spatial scales these processes take place. Functional tracers such as carbon (δ13C) and nitrogen (δ15N) isotopic composition in the soil-
Milena Carvalho Teixeira +4 more
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Semina: Ciências Agrárias, 2017 The gradual change in management practices in sugarcane (Saccharum spp.) production from burning straw to a green harvesting system, as well as the use of minimum soil tillage during field renovation, may affect soil fertility and soil organic matter ...
Iara Maria Lopes +5 more
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Soil Systems, 2023 Photodegradation is an important mechanism that affects carbon and nutrient cycling; a significant amount of data has been reported previously. The present review includes the effect of a wider spectrum of solar radiation (sun light, UV, and visible ...
Mohammed Bakr Hussain +7 more
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CARBON ISOTOPE FRACTIONATION IN PROTOPLANETARY DISKS [PDF]
The Astrophysical Journal, 2009 50 pages, 10 figures, accepted for publication in the Astrophysical ...
Woods, Paul M., Willacy, Karen
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Geomorphic control on the δ15N of mountain forests [PDF]
Biogeosciences, 2013 Mountain forests are subject to high rates of physical erosion which can export particulate nitrogen from ecosystems. However, the impact of geomorphic processes on nitrogen budgets remains poorly constrained.
R. G. Hilton +4 more
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Improving wood carbon fractions for multiscale forest carbon estimation
Carbon Balance and Management, 2023 Abstract Background Wood carbon fractions (CFs)—the proportion of dry woody biomass comprised of elemental carbon (C)—are a key component of forest C estimation. Traditionally, a generic wood CF of 50% has been assumed in forest C estimation analyses and protocols, but in recent decades, studies have specifically quantified differences in wood
Mahendra Doraisami +2 more
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Revista Brasileira de Ciência do Solo, 2008 Sistemas de integração agricultura-pecuária têm despertado maior interesse de pesquisadores nos últimos anos por proporcionarem maior estabilidade e sustentabilidade à produção agropecuária, em relação ao modelo de produção mais especializado atualmente ...
Edicarlos Damacena de Souza +5 more
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Termite Mounds Effects on Soil Properties in the Atlantic Forest Biome
Revista Brasileira de Ciência do Solo, 2018 Termites have peculiar activities in the soil, inducing significant changes in the soil properties. The objective of this study was to assess physical and chemical properties and soil organic matter to evaluate the effect of termite activity and termite ...
Sandra Santana de Lima +4 more
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Radiocarbon dating — modern state, problem, prospects of development and use in archaeology
Вестник археологии, антропологии и этнографии, 2016 Basic principles of radiocarbon dating are presented in the article. History of the method development and modern state are shown. Difficulties appeared under the radiocarbon dating and approaches, permitting to present the received results correctly are
Zazovskaya E.P.
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Fractional Carbon Dioxide Laser Resurfacing [PDF]
Seminars in Plastic Surgery, 2012 Currently available ablative fractional CO2 lasers provide excellent results and diminish down time with fewer complications than previous generation CO2 lasers. Mechanisms of action, treatment parameters, as well as pre- and postoperative care will be discussed.
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