Environmental factors controlling soil organic carbon stability in French forest soils

Soucémarianadin, Laure; Cécillon, Lauric; Guenet, Bertrand; Chenu, Claire; Baudin, François; Nicolas, Manuel; Girardin, Cyril; Barré, Pierre

doi:10.1007/s11104-018-3613-x

Cited by 69 publications

(38 citation statements)

References 98 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [35], the authors found that SOC stock showed a decreasing trend at higher elevations, which is where the forest vegetation types transform into alpine shrublands. Altitude importantly but indirectly influences the SOC stock by affecting properties such as lower soil depths, different distributions of forest species, different soil types, and increased percentages of stone content [7,11,36,37]. In our study, the results of the PCA analysis confirm the importance of the slope in shaping the SOC stock.…”

Section: Discussionsupporting

confidence: 75%

Distribution and Factors Influencing Organic Carbon Stock in Mountain Soils in Babia Góra National Park, Poland

et al. 2019

View full text Add to dashboard Cite

The objective of this study was to determine the soil organic carbon stock (T-SOC stock) in different mountain soils in the Babia Góra National Park (BNP). Environmental factors, such as the topography, parent material, and vegetation, were examined for their effect on carbon stock. Fifty-nine study plots in different BNP locations with diverse vegetation were selected for the study. In each study plot, organic carbon stock was calculated, and its relationships with different site factors were determined. The results reveal that the SOC stocks in the mountain soils of the BNP are characterized by high variability (from 50.10 to 905.20 t ha − 1 ). The general linear model (GLM) analysis indicates that the soil type is an important factor of soil organic carbon stock. Topographical factors influence soil conditions and vegetation, which results in a diversity in carbon accumulation in different mountain soils in the BNP. The highest carbon stock was recorded in histosols (>550 t C ha − 1 ), which are located in the lower part of the BNP in the valleys and flat mountain areas.

show abstract

Section: Discussionsupporting

confidence: 75%

Distribution and Factors Influencing Organic Carbon Stock in Mountain Soils in Babia Góra National Park, Poland

et al. 2019

View full text Add to dashboard Cite

show abstract

“…A bulk SOC-normalised respiration of 107 to 320 lg CO 2 -C g -1 C d -1 is within the range of comparable incubation experiments (Agnelli et al 2004;Salome et al 2010;Schrumpf et al 2013;Soucemarianadin et al 2018;Wordell-Dietrich et al 2017). Significantly higher respiration rates for the Topsoil of the Loess compared to the Subsoil samples and a clear trend of higher SOC-normalised respiration at the Deeper Subsoil of the Sand compared to the Topsoil samples revealed relevant site dependent effects.…”

Section: Stability Of Topsoil and Subsoil Socsupporting

confidence: 64%

Fate and stability of dissolved organic carbon in topsoils and subsoils under beech forests

et al. 2020

View full text Add to dashboard Cite

Dissolved organic carbon (DOC) from Oa horizons has been proposed to be an important contributor for subsoil organic carbon stocks. We investigated the fate of DOC by directly injecting a DOC solution from 13 C labelled litter into three soil depths at beech forest sites. Fate of injected DOC was quantified with deep drilling soil cores down to 2 m depth, 3 and 17 months after the injection. 27 ± 26% of the injected DOC was retained after 3 months and 17 ± 22% after 17 months. Retained DOC was to 70% found in the first 10 cm below the injection depth and on average higher in the topsoil than in the subsoil. After 17 months DOC in the topsoil was largely lost (-19%) while DOC in the subsoil did not change much (-4.4%). Data indicated a high stabilisation of injected DOC in the subsoils with no differences between the sites. Potential mineralisation as revealed by incubation experiments however, was not different between DOC injected in topsoil or subsoils underlining the importance of environmental factors in the subsoil for DOC stabilisation compared to topsoil. We conclude that stability of DOC in subsoil is primary driven by its spatial inaccessibility for microorganisms after matrix flow while site specific properties did not significantly affect stabilisation. Instead, a more fine-textured site promotes the vertical transport of DOC due to a higher abundance of preferential flow paths.

show abstract

“…This finding is consistent with that of Meier and Leuschner 42 who observed a substantial reduction (25%) in the SOC pool in forests stands that received less than 600 mm rainfall annually compared with stands that received more than 900 mm rainfall annually. Other studies, such as those of Jobbágy and Jackson 43 , Bhandari and Bam 7 , Chen et al 2 , Ramifehiarivo et al 13 , Hewins et al 23 and Soucémarianadin et al 12 , also noted that mean annual rainfall within a forest landscape strongly influences the amount of SOC. The relationship between rainfall and SOC occurrence can be attributed to the influences of rainfall on soil moisture and hydrological processes such as surface run-off and groundwater infiltration.…”

Section: Discussionmentioning

confidence: 87%

“…Environmental variables are critical to the spatial distribution of SOC within a forest landscape. 12 Some of these environmental factors occur naturally while others are human-induced. 13 Variables such as topography (e.g.…”

Section: Introductionmentioning

confidence: 99%

Estimating soil organic carbon stocks under commercial forestry using topo-climate variables in KwaZulu-Natal, South Africa

et al. 2020

View full text Add to dashboard Cite

Commercial forests are expanding globally, with great potential to absorb carbon and mitigate climate change. However, whereas the role of natural forests in carbon sequestration has been widely investigated, there is a paucity in the literature on the role of commercial forests in carbon assimilation. Hence, understanding the role of commercial forests in carbon storage is essential for quantifying local, regional or global carbon balances, which is valuable for climate change mitigation. Soil carbon is known to be the largest pool within any forest landscape, and is controlled by a wide range of physical and climatic factors. However, the relationship between soil organic carbon (SOC) and topo-climatic variables controlling its distribution within commercial forests is still poorly understood. Due to the limitations encountered in traditional systems of SOC determination, particularly at large spatial extents, geospatial techniques have recently emerged as a viable alternative for mapping soil properties. Therefore, this study sought to map SOC stocks variability within the commercial forest landscape, using landscape topo-climatic variables. A total of 81 soil samples was analysed for SOC concentrations and 31 topographic and climatic variables were used as predictors to SOC variability. To reduce multicollinearity, these variables were reduced to 11 using stepwise backward elimination and the maximum entropy (Maxent) algorithm was used for regression analysis to determine the relationship between SOC and the selected topo-climatic variables. Good accuracies were obtained for both training (area under the curve = 0.906) and test (area under the curve = 0.885) data sets, and demonstrate the effectiveness of selected topo-climatic variables and the Maxent algorithm in predicting SOC stocks. This study provides a framework for monitoring the status of soil carbon in commercial forest compartments and provides a viable approach for local, national or regional carbon accounting – valuable for climate change mitigation.

show abstract

Environmental factors controlling soil organic carbon stability in French forest soils

Cited by 69 publications

References 98 publications

Distribution and Factors Influencing Organic Carbon Stock in Mountain Soils in Babia Góra National Park, Poland

Distribution and Factors Influencing Organic Carbon Stock in Mountain Soils in Babia Góra National Park, Poland

Fate and stability of dissolved organic carbon in topsoils and subsoils under beech forests

Estimating soil organic carbon stocks under commercial forestry using topo-climate variables in KwaZulu-Natal, South Africa

Contact Info

Product

Resources

About