Value of Soil Organic Carbon in Agricultural Lands

Wander, Michelle M.; Nissen, Todd

doi:10.1023/b:miti.0000038847.30124.77

Cited by 33 publications

(15 citation statements)

References 25 publications

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“…Furthermore, switchgrass can improve soil quality by increasing soil organic carbon (SOC) content and by reducing soil erosion (Cowie, 2006;Frank et al, 2004;Liebig et al, 2005;McLaughlin and Walsh, 1998;Tolbert et al, 2002). Increase in SOC pools can also help mitigate anthropogenic emissions of CO 2 as well as provide numerous ecosystem services (Lal, 1997;Wander and Nissen, 2004). …”

Section: Introductionmentioning

confidence: 99%

Impacts of nitrogen fertilization on biomass production of switchgrass (Panicum Virgatum L.) and changes in soil organic carbon in Ohio

Jung

Lal

2011

Geoderma

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Section: Introductionmentioning

confidence: 99%

Impacts of nitrogen fertilization on biomass production of switchgrass (Panicum Virgatum L.) and changes in soil organic carbon in Ohio

Jung

Lal

2011

Geoderma

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“…Les assolements prolongés bien amendés comme la monoculture du blé et la rotation blé-lentillle (Lens culinaris Medikus) ou les systèmes J-S-B bonifiés avec des engrais N et P ont enregistré des gains de COS plus élevés que les assolements J-B, J-B-B, J-Lin (Linum usitatissimum L.)-B fertilisés avec des engrais N et P et la monoculture du blé ne recevant qu'un engrais P. Le COS était aussi plus abondant dans les systèmes bien fertilisés que dans ceux qui ne l'étaient pas. Les modèles ICBM et Campbell simulent bien les tendances du COS, en partie parce Due to growing concerns about the influence of greenhouse gases on global warming and climate change, and the possible interplay that carbon sequestration in terrestrial ecosystems can have on mitigating greenhouse gas emissions, the quantification of carbon sequestration has received considerable attention in recent years (Paustian et al 1997;Bruce et al 1999;Wander and Nissen 2004). Further, carbon sequestration has become even more important in this context since the Kyoto accords were modified in COP7 at the Marrakech meetings in 2001 (Boehm et al 2004) to allow countries to count soil carbon sequestration as a contribution to offset greenhouse gas emissions from other sources (IPCC 2001).…”

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“…This can be achieved through the use of improved management techniques such as reduced tillage, reduced summerfallow, and efficient nutrient management (Bruce et al 1999;Wander and Nissen 2004).…”

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confidence: 99%

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Quantifying carbon sequestration in a conventionally tilled crop rotation study in southwestern Saskatchewan

Campbell¹,

VandenBygaart²,

Grant³

et al. 2007

Can. J. Soil. Sci.

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M. R. 2007. Quantifying carbon sequestration in a conventionally tilled crop rotation study in southwestern Saskatchewan. Can. J. Soil Sci. 87: [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. In this study we used results from 10 cropping systems in a 37-yr field experiment being conducted on a medium-textured Orthic Brown Chernozem in semiarid southwestern Saskatchewan, in which soil organic carbon (SOC) had been sampled in 7 different years, to quantify trends and changes in SOC in the 0-to 15-cm depth. We tested the effectiveness of three models: Century, the Introductory Carbon Balance Model (ICBM), and the Campbell model to predict the measured values. The 10 cropping systems allowed us to assess the influence of cropping frequency, fertilization and crop type on SOC and, because growing season weather was distinctly more humid in the final 12 yr of the study, we were able to assess the impact of weather. In this soil on which a fallow-wheat (Triticum aestivum L.) (F-W) rotation was maintained for the previous 60 yr, SOC remained fairly constant under normal weather for the first 20 yr of the study for the systems that were frequently fallowed, except for fallow-fall rye (Secale cereale L.)-wheat (F-Rye-W). In contrast, in the final 12 yr, SOC increased in all systems in response to increased C inputs from crop residues associated with improved precipitation. SOC gains were greater for well-fertilized extended crop rotations such as continuous wheat (Cont W) and wheat-lentil (Lens culinaris Medikus) (W-Lent) and the F-Rye-W systems receiving N and P than for the F-W, F-W-W, F-Flax (Linum usitatissimum L.)-W(F-Flx-W) receiving N and P, and Cont W receiving only P. SOC was also greater for well-fertilized than for poorly fertilized systems. The ICBM and Campbell models performed well in simulating SOC trends, partly because they used measured grain yields to estimate C inputs. However, the Century model was less effective in its simulation of SOC especially for the fallow-containing systems due to its difficulty in estimating spring soil water and crop yields. We showed how grain yields can be used, together with coefficients of conversion of C inputs from crop residues to SOC, to estimate SOC changes. Using these relationships, and assuming the coefficient of conversion of C inputs to SOC sequestered is 15% for well-fertilized extended rotations, or 10% for well-fertilized frequently fallowed spring-seeded systems, one can make reasonable first estimates of the impact of management on C sequestration in degraded soils of the semiarid prairies.Key words: ICBM model, Century model, Campbell model, soil organic C, N and P fertilizer, cropping frequency Campbell, C. A., VandenBygaart, A. J., Grant, B., Zentner, R. P., McConkey, B. G., Lemke, R., Gregorich, E. G. et Fernandez, M. R. 2007. Quantification de la séquestration du carbone dans les assolements du sud-ouest de la Saskatchewan. Can. J. Soil Sci. 87: 23-38. Pour leur étude, les auteurs ont recouru aux résultats de 10 systèmes agricoles ...

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“…The SOC models generally consider two or three biochemical C pools [6] [7]. The most labile SOC pools are sensitive indicators of soil biological activity [8] and structural stability [9] [10] resulting from agro-ecosystem management [11]- [14].…”

Section: Introductionmentioning

confidence: 99%

Biochemical Fractionation of Soil Organic Matter after Incorporation of Organic Residues

Parent¹,

Parent²

2015

OJSS

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Soil organic matter (SOM) is a key factor for building and maintaining soil quality. The SOM quality is commonly assessed using densitometric and sieving separation methods, but such methods do not inform on the biochemical composition of SOM. Our objective was to evaluate the van Soest extraction procedure for soluble (SOL), holocellulose (HOLO) and lignin/cutin (LIC) fractions of SOM after incorporating crop residues and animal wastes into a C-depleted loamy sand. Millet cuttings, oat straw, fresh cattle manure and cattle manure compost were dried, sieved to obtain 53 -250 and 250 -2000 µm size fractions and characterized biochemically using a modified NDF-ADF-ADL van Soest method. Soil was also sieved into 53 -250 and 250 -2000 µm fractions. On a dry mass basis, crop residues contained 60% -70% holocellulose while animal wastes contained more than 40% ash. Each soil fraction was combined with three rates of the corresponding organic fraction (

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Value of Soil Organic Carbon in Agricultural Lands

Cited by 33 publications

References 25 publications

Impacts of nitrogen fertilization on biomass production of switchgrass (Panicum Virgatum L.) and changes in soil organic carbon in Ohio

Impacts of nitrogen fertilization on biomass production of switchgrass (Panicum Virgatum L.) and changes in soil organic carbon in Ohio

Quantifying carbon sequestration in a conventionally tilled crop rotation study in southwestern Saskatchewan

Biochemical Fractionation of Soil Organic Matter after Incorporation of Organic Residues

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