منابع مشابه
Spatial distribution of soil organic carbon stocks in France
Soil organic carbon plays a major role in the global carbon budget, and can act as a source or a sink of atmospheric carbon, thereby possibly influencing the course of climate change. Changes in soil organic carbon (SOC) stocks are now taken into account in international negotiations regarding climate change. Consequently, developing sampling schemes and models for estimating the spatial distri...
متن کاملEnhanced top soil carbon stocks under organic farming.
It has been suggested that conversion to organic farming contributes to soil carbon sequestration, but until now a comprehensive quantitative assessment has been lacking. Therefore, datasets from 74 studies from pairwise comparisons of organic vs. nonorganic farming systems were subjected to metaanalysis to identify differences in soil organic carbon (SOC). We found significant differences and ...
متن کاملCritical carbon input to maintain current soil organic carbon stocks in global wheat systems
Soil organic carbon (SOC) dynamics in croplands is a crucial component of global carbon (C) cycle. Depending on local environmental conditions and management practices, typical C input is generally required to reduce or reverse C loss in agricultural soils. No studies have quantified the critical C input for maintaining SOC at global scale with high resolution. Such information will provide a b...
متن کاملEstimating soil carbon stocks of Africa
Soil carbon stocks in ecoregions of Africa M. Henry, R. Valentini, and M. Bernoux Institut de Recherche pour le Développement, IRD, UR SeqBio, SupAgro, Bat. 12, 2 place Viala, 34060 Montpellier Cedex 1, France Laboratorio di Ecologia Forestale, Di.S.A.F.Ri. – Facoltà di Agraria, Università degli Studi della Tuscia, Via Camillo de Lellis, snc – 01100, Viterbo, Italy AgroParisTech – ENGREF, GEEFT...
متن کاملSoil Organic Carbon Pools and Stocks in Permafrost-Affected Soils on the Tibetan Plateau
The Tibetan Plateau reacts particularly sensitively to possible effects of climate change. Approximately two thirds of the total area is affected by permafrost. To get a better understanding of the role of permafrost on soil organic carbon pools and stocks, investigations were carried out including both discontinuous (site Huashixia, HUA) and continuous permafrost (site Wudaoliang, WUD). Three ...
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ژورنال
عنوان ژورنال: International Journal of Soil Science
سال: 2009
ISSN: 1816-4978
DOI: 10.3923/ijss.2010.34.40