Journal ArticleDOI
An approach for estimating net primary productivity and annual carbon inputs to soil for common agricultural crops in Canada
TLDR
In this paper, the root-derived carbon (C) in these coefficients was estimated by reviewing studies reporting information on plant shoot-to-root (S:R) ratios (n = 168), which were highest for small-grain cereals (7.4), followed by corn (5.6), and lowest for forages (1.6).About:
This article is published in Agriculture, Ecosystems & Environment.The article was published on 2007-01-01. It has received 508 citations till now. The article focuses on the topics: Soil organic matter.read more
Citations
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Journal ArticleDOI
The Ecology of Soil Carbon: Pools, Vulnerabilities, and Biotic and Abiotic Controls
TL;DR: This analysis suggests root inputs are approximately five times more likely than an equivalent mass of aboveground litter to be stabilized as SOM, and that fungi and bacteria, and soil faunal food webs, and mineral associations drive stabilization at depths greater than ∼30 cm.
Journal ArticleDOI
Carbon input by roots into the soil: Quantification of rhizodeposition from root to ecosystem scale
TL;DR: This review demonstrates that C partitioning can be used in various approaches, e.g., root sampling, CO2 flux measurements, to assess rhizodeposits' pools and fluxes at pot, plot, field and ecosystem scale and so, to close the most uncertain gap of the terrestrial C cycle.
Journal ArticleDOI
Roots contribute more to refractory soil organic matter than above-ground crop residues, as revealed by a long-term field experiment
TL;DR: In this paper, the authors revisited the long-term "Ultuna continuous soil organic matter field experiment" which started in 1956 at the Swedish University of Agricultural Sciences and used the equivalent soil mass concept for estimating changes in the topsoil carbon stocks in all 15 treatments.
Journal ArticleDOI
Carbon Footprint and Sustainability of Agricultural Production Systems in Punjab, India, and Ohio, USA
Anjali Dubey,Rattan Lal +1 more
TL;DR: In this paper, the authors assess the agricultural carbon emissions in relation to predominant farming systems in Punjab, India, and Ohio, USA, and determine the relative sustainability of agronomic production systems as determined by their carbon footprints.
Book ChapterDOI
Variability in harvest index of grain crops and potential significance for carbon accounting: examples from Australian agriculture
TL;DR: For grain crops, harvest index (HI) is the ratio of harvested grain to total shoot dry matter, and this can be used as a measure of reproductive efficiency as discussed by the authors, and it can also be used to estimate crop carbon (C) balances by applying it to grain yield statistics to determine total shoot drier matter and then calculating crop residues as the difference between shoot C and grain C. Such an approach is widely used in C-accounting systems.
References
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Journal ArticleDOI
Soil carbon sequestration impacts on global climate change and food security.
TL;DR: In this article, the carbon sink capacity of the world’s agricultural and degraded soils is 50 to 66% of the historic carbon loss of 42 to 78 gigatons of carbon.
Journal ArticleDOI
Soil carbon sequestration to mitigate climate change
TL;DR: In this article, the authors proposed a sustainable management of soil organic carbon (SOC) pool through conservation tillage with cover crops and crop residue mulch, nutrient cycling including the use of compost and manure, and other management practices.
Book
Methods of studying root systems
TL;DR: A general survey of root-study methods can be found in this article, where the authors present a detailed analysis of the root-washing methods and their application in a variety of applications.
Journal ArticleDOI
Root biomass allocation in the world's upland forests.
TL;DR: In this article, the root biomass density is estimated based on existing data from the literature and linear regression analysis is used to determine if a reliable method to estimate root density for forests could be developed.
Book
Land Use, Land-Use Change, and Forestry
Ian R. Noble,Michael J. Apps,Richard A. Houghton,Daniel A. Lashof,Willy Makundi,Daniel Murdiyarso,Brad Murray,Wim Sombroek,Riccardo Valentini,Masahiro Amano,Phillip Fearnside,Jorge Frangi,Peter C. Frumhoff,Donald Goldberg,Niro Higuchi,Anthony C. Janetos,Miko U. F. Kirschbaum,Rodel D. Lasco,Gert Nabuurs,Reider Persson,William H. Schlesinger,Anatoly Shvidenko,David L. Skole,P. L. Smith,M. G. R. Cannell,Carlos Clemente Cerri,Darren Goetze,H. Henry Janzen,John M. Kimble,Rattan Lal,Pedro Moura-Costa,Mark O'Brien,Pancho Sanchez,Tejpal Singh,Robert J. Scholes +34 more
TL;DR: The Intergovernmental Panel on Climate Change (IPCC) Special Report on Land Use, Land Use Change, and Forestry (SR-LULUCF) has been prepared in response to a request from the UNFCCC Subsidiary Body for Scientific and Technological Advice (SBSTA) as mentioned in this paper.
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