Stocks and fluxes of soil organic carbon for landscape units in Belgium derived from heterogeneous data sets for 1990 and 2000

Lettens, Suzanna; Orshoven, Jos Van; Wesemael, Bas van; Vos, Bruno De; Muys, Bart

doi:10.1016/j.geoderma.2004.11.001

Cited by 89 publications

(80 citation statements)

References 22 publications

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“…Their work reveals that even within this limited focus, some ambiguity is associated with the assessment, associated with a strong methoddependence in the spatial interpolation between map and profile data. Working in the same region and with the same original data set as two previous groups of researchers (Lettens et al, 2005;Meersmans et al, 2008) who used different upscaling techniques, Ottoy et al (2015) predicted a value for the total carbon stock down to a reference depth of 1 m that was 12% lower than the estimate based on the individual profile approach of Lettens et al (2005), and 10% lower than with the linear modeling approach of Meersmans et al (2008).…”

Section: Using Soil Maps and Pedotransfer Functionsmentioning

confidence: 99%

Soil “Ecosystem” Services and Natural Capital: Critical Appraisal of Research on Uncertain Ground

Baveye

Gowdy

2016

Front. Environ. Sci.

314

168

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Section: Using Soil Maps and Pedotransfer Functionsmentioning

confidence: 99%

Soil “Ecosystem” Services and Natural Capital: Critical Appraisal of Research on Uncertain Ground

Baveye

Gowdy

2016

Front. Environ. Sci.

314

168

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“…In Belgium, grasslands were reported either to be sequestering C in soils at rates of 22 or 44 g C/m 2 per year (Lettens et al, 2005a;Goidts and van Wesemael, 2007, respectively), or losing C at 90 g C/m 2 per year on podzolic, clayey and loam soils (Lettens et al, 2005b). However, soil bulk density was estimated from pedo-transfer functions in these studies, which adds to the uncertainty, as a small change in bulk density can result in a large change in stock of SOC .…”

Section: Grassland Carbon Sequestrationmentioning

confidence: 99%

Mitigating the greenhouse gas balance of ruminant production systems through carbon sequestration in grasslands

Soussana

Tallec

Blanfort

2010

Animal

425

289

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Soil carbon sequestration (enhanced sinks) is the mechanism responsible for most of the greenhouse gas (GHG) mitigation potential in the agriculture sector. Carbon sequestration in grasslands can be determined directly by measuring changes in soil organic carbon (SOC) stocks and indirectly by measuring the net balance of C fluxes. A literature search shows that grassland C sequestration reaches on average 5 6 30 g C/m 2 per year according to inventories of SOC stocks and 2231 and 77 g C/m 2 per year for drained organic and mineral soils, respectively, according to C flux balance. Off-site C sequestration occurs whenever more manure C is produced by than returned to a grassland plot. The sum of on-and off-site C sequestration reaches 129, 98 and 71 g C/m 2 per year for grazed, cut and mixed European grasslands on mineral soils, respectively, however with high uncertainty. A range of management practices reduce C losses and increase C sequestration: (i) avoiding soil tillage and the conversion of grasslands to arable use, (ii) moderately intensifying nutrient-poor permanent grasslands, (iii) using light grazing instead of heavy grazing, (iv) increasing the duration of grass leys; (v) converting grass leys to grass-legume mixtures or to permanent grasslands. With nine European sites, direct emissions of N 2 O from soil and of CH 4 from enteric fermentation at grazing, expressed in CO 2 equivalents, compensated 10% and 34% of the on-site grassland C sequestration, respectively. Digestion inside the barn of the harvested herbage leads to further emissions of CH 4 and N 2 O by the production systems, which were estimated at 130 g CO 2 equivalents/m 2 per year. The net balance of on-and off-site C sequestration, CH 4 and N 2 O emissions reached 38 g CO 2 equivalents/m 2 per year, indicating a non-significant net sink activity. This net balance was, however, negative for intensively managed cut sites indicating a source to the atmosphere. In conclusion, this review confirms that grassland C sequestration has a strong potential to partly mitigate the GHG balance of ruminant production systems. However, as soil C sequestration is both reversible and vulnerable to disturbance, biodiversity loss and climate change, CH 4 and N 2 O emissions from the livestock sector need to be reduced and current SOC stocks preserved.

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“…In addition to the per-LSU BOC stocks as computed in this paper, per-LSU SOC stocks are available from previous research (Lettens et al, 2005a). By summing the LSU-specific average biomass and soil organic carbon contents, the total organic carbon (TOC, kg C m −2 ) content is obtained.…”

Section: Total Organic Carbon Content and Boc/soc Ratio Per Lsumentioning

confidence: 99%

Évolution des stocks de carbone dans la biomasse des forêts belges entre 1984 et 2000

et al. 2008

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-• Carbon sequestration in forest ecosystems is an important though still uncertain process in the global greenhouse gas balance.• We computed biomass organic carbon (BOC) stocks of spatially explicit forested landscape units (LSU) in Belgium based on data collected in the regional forest inventories of 1984 (Wallonia region only) and 2000 (Wallonia and Flanders). C stock changes between 1984 and 2000 were estimated for Wallonia.• The total BOC pool stored in Belgian forests in 2000 amounts to 57.8 Mt C in 6 222 km 2 , or 10.0 kg C m −2 in broadleaf, 9.5 kg C m −2 in coniferous and 8.7 kg C m −2 in mixed forest. Based on previous soil organic carbon (SOC) analysis for the same LSU, BOC and SOC stock per LSU appeared only weakly correlated. The total BOC sequestration between 1984 and 2000 equals 5.7 Mt C over an area of 5 107 km 2 , resulting in a flux of 0.07 kg C m −2 y −1 . The BOC content of broadleaf forest in Wallonia increased with 6%, of coniferous forest with 32% and of mixed forest with 11%.• The observed regional differences in BOC stocks and in BOC sequestration rates are explained by the forest age-class distribution and site productivity. The strength of the spatially explicit approach lies in the fact that BOC and SOC data originating from diverse sampling strategies can be combined for spatial or temporal comparison of C stocks.forest inventory / Belgium / forest biomass / soil / carbon sequestration Résumé -Évolution des stocks de carbone dans la biomasse des forêts belges entre 1984 et 2000.• La séquestration du carbone par les écosystèmes forestiers constitue un processus important dans le bilan global des gaz à effet de serre, mais il subsiste des incertitudes dans sa compréhension. inventaire forestier / Belgique / biomasse / sol / séquestration de carbone

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Stocks and fluxes of soil organic carbon for landscape units in Belgium derived from heterogeneous data sets for 1990 and 2000

Cited by 89 publications

References 22 publications

Soil “Ecosystem” Services and Natural Capital: Critical Appraisal of Research on Uncertain Ground

Soil “Ecosystem” Services and Natural Capital: Critical Appraisal of Research on Uncertain Ground

Mitigating the greenhouse gas balance of ruminant production systems through carbon sequestration in grasslands

Évolution des stocks de carbone dans la biomasse des forêts belges entre 1984 et 2000

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