Management effects on soil C storage on the Canadian prairies

Janzen, H. H.; Campbell, C. A.; Izaurralde, R. C.; Ellert, B. H.; Juma, N. G.; McGill, W. B.; Zentner, R. P.

doi:10.1016/s0167-1987(98)00105-6

Cited by 347 publications

(196 citation statements)

References 32 publications

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“…Previous land use practices determines soil fertility to a large degree, which affects the potential of to accumulate carbon (Wise and Cacho 1999). Evidence from long-term experiments suggest that carbon losses can be reversed with soil management practices that minimise soil disturbance and optimise plant yield through fertilisation (Dick, Blevins et al 1998); (Janzen, Campbell et al 1998); (Rasmussen, Albrecht et al 1998); (Post et al 2001). Carbon sequestration can be fostered by establishing perennial vegetation, conservation tillage methods, efficiently using fertiliser and increasing use of high yielding crop varieties (Post et al 2001).…”

Section: Strategies To Improve Soc Stocks On the Farmmentioning

confidence: 99%

Farm soil carbon monitoring developments and land use change: unearthing relationships between paddock carbon stocks, monitoring technology and new market options in Western Australia

McHenry

2009

Mitig Adapt Strateg Glob Change

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Section: Strategies To Improve Soc Stocks On the Farmmentioning

confidence: 99%

Farm soil carbon monitoring developments and land use change: unearthing relationships between paddock carbon stocks, monitoring technology and new market options in Western Australia

McHenry

2009

Mitig Adapt Strateg Glob Change

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“…In 1991In , 1992In , 1996, and 1997 the summer fallow plots received a second herbicide application in early to mid July, followed by one or two tillage operations as required using a wide V-blade cultivator. In , 1998, weeds were controlled by herbicides alone. All plots received 2,4-D ester applied in fall to control winter annual broadleaf weeds.…”

Section: Experimental Datamentioning

confidence: 99%

Quantifying carbon sequestration in a minimum tillage crop rotation study in semiarid southwestern Saskatchewan

Campbell¹,

VandenBygaart²,

Zentner³

et al. 2007

Can. J. Soil. Sci.

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. Quantifying carbon sequestration in a minimum tillage crop rotation study in semiarid southwestern Saskatchewan. Can. J. Soil Sci. 87: 235-250. Scientists and the agricultural community require methods of quantifying C sequestration in soils. This is important in assessing the impact of crop management practices on emission of greenhouse gases and for "C trading". Using simulation models may be a more effective method of quantification as compared with in situ measurements. A 17-yr crop rotation experiment being conducted on a medium-textured Orthic Brown Chernozem at Swift Current, Saskatchewan, in which soil organic C (SOC) was being monitored periodically, was used to assess the effect on C sequestration of cropping frequency, wheat class, legume green manure (LGM), flexible cropping based on available water, and regrassing of crop land. Prior to the study, the experimental site had been cropped to fallow-wheat (F-W) for the previous 60 yr. Crop management in this experiment involved minimum tillage, snow trapping, and N + P fertilization based on soil tests. Three models [Century, the Introductory C Balance model (ICBM), and the Campbell model] were tested for their effectiveness in simulating SOC trends. Because growing season precipitation was average to above average, yields, and thus C inputs from residue, were also above average, and consequently SOC increased in most systems for the first 10 yr before reaching a new steady state. SOC gains (kg ha -1 yr -1 ) in the 0-to 15-cm depth in 17 yr were directly proportional to cropping frequency (F-W-W = 135, F-W-W-W = 332, and Cont W = 441);LGM-W-W gained SOC at a much higher rate than F-W-W (329 vs. 135 kg ha -1 yr -1 ); Canada Western Red Spring (CWRS) wheat (Triticum aestivum L.), although it yielded 26% less than Canada Prairie Spring (CPS) wheat, gained SOC at a higher rate than CPS wheat (135 vs. 0 kg ha -1 yr -1 ). Further, 2 yr of conventionally-tilled fallow in 17 yr (flexible system) markedly suppressed SOC gain by 46% compared with Cont W (441 vs. 236 kg ha -1 yr -1 ). There was a 282 kg ha -1 yr -1 gain in SOC under crested wheatgrass (Agropyron cristatum L.) (CWG) but most of this gain occurred in the last 7 yr. Though having their inherent weaknesses, the ICBM and Campbell models performed equally well in simulating SOC trends (r 2 = 0.55 ** ), but Century was less effective (r 2 = 0.21 * ), in part because of its limited ability to simulate yields. Because C input, and thus yield, is one of the main factors influencing SOC gains, and since measured yields are used in the ICBM and Campbell models, while simulated yields are used by Century, the ICBM and Campbell models have an advantage over the Century model in this comparison. Efficiencies of conversion of input C to SOC increased with cropping frequency, and were higher for LGM-W-W than for F-W-W, and for systems with CWRS wheat rather than CPS wheat. Efficiency of conversion was 8% for F-W-W, 15% for LGM-W-W and 21% for Cont W.Key words: ICBM model, Century model, Campbell model, C sequest...

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“…Sistemas de manejo que aumentem a adição de resíduos vegetais e a retenção de C no solo se constituem em alternativas importantes para aumentar a capacidade de dreno de C-CO 2 atmosférico e mitigação do aquecimento global (Amado et al, 2001;Bayer et al, 2006). Várias são as ênfases e as formas de quantificar o efeito de sistemas de manejo sobre os fluxos de C no sistema solo-planta-atmosfera citadas na literatura (Paustian et al, 1997;Janzen et al, 1998). O balanço de C no solo é dependente da relação entre as adições de C fotossintetizado pelas plantas (parte aérea e raízes) e as perdas de C para a atmosfera resultantes da oxidação microbiana do C orgânico a CO 2.…”

Section: Introductionunclassified

Estoque de carbono orgânico no solo e emissões de dióxido de carbono influenciadas por sistemas de manejo no sul do Brasil

Costa

Bayer

Zanatta

et al. 2008

Rev. Bras. Ciênc. Solo

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Management effects on soil C storage on the Canadian prairies

Cited by 347 publications

References 32 publications

Farm soil carbon monitoring developments and land use change: unearthing relationships between paddock carbon stocks, monitoring technology and new market options in Western Australia

Farm soil carbon monitoring developments and land use change: unearthing relationships between paddock carbon stocks, monitoring technology and new market options in Western Australia

Quantifying carbon sequestration in a minimum tillage crop rotation study in semiarid southwestern Saskatchewan

Estoque de carbono orgânico no solo e emissões de dióxido de carbono influenciadas por sistemas de manejo no sul do Brasil

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