The effect of fire on soil organic matter—a review

González‐Pérez, José Antonío; González-Vila, Francisco Javier; Almendros, G.; Knicker, Heike

doi:10.1016/j.envint.2004.02.003

Cited by 972 publications

(631 citation statements)

References 89 publications

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“…Subsurface water collection is also closely linked to the ditch network design and especially to the reach morphology and density (Dunn and Mackay 1996;Childs and Youngs 2006). The other factors are the hydraulic characteristics of the ditch-groundwater interface, especially the hydraulic conductivity (Carluer and Marsily 2004;Girard et al 2011). The hydraulic conductivity of ditch sidewalls and beds is related to soil texture and structure and to the sediment and litter layers.…”

Section: Waterlogging Controlmentioning

confidence: 99%

“…Ditches collect surface runoff from surrounding plots and roads (Buchanan et al 2012;Carluer and Marsily 2004;Girard et al 2011). The amount of runoff collected by ditches depends on the runoff that is produced in connected areas and on the ability of the ditches to capture it.…”

Section: Waterlogging Controlmentioning

confidence: 99%

“…However, it is of great significance in lowland areas with perennial shallow groundwater or in irrigated areas, where excess water needs to be removed. Waterlogging control results from groundwater table lowering by groundwater exfiltration to the ditches, efficient surface runoff collection, and rapid water routing downstream (Buchanan et al 2012;Girard et al 2011;Kao et al 2002;Needelman et al 2007). This ecosystem service is thereby optimized if all of the three processes involved are maximized (Table 1).…”

Section: Waterlogging Controlmentioning

confidence: 99%

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Managing ditches for agroecological engineering of landscape. A review

Dollinger¹,

Dagès²,

Bailly

et al. 2015

Agron. Sustain. Dev.

119

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Agriculture must now feed the planet with the lowest environmental impact. Landscape management is a means to protect natural resources from the adverse impacts. In particular, the adequate management of ditches could improve crop quality. Here, we review ditch design and maintenance. We found the following major points: (1) ditch networks have been primarily designed for waterlogging control and erosion prevention. Nonetheless, when properly managed, farm ditches provide other important ecosystem services, namely groundwater recharge, flood attenuation, water purification, or biodiversity conservation. (2) All ditch ecosystem services depend on many geochemical, geophysical, and biological processes, whose occurrence and intensity vary largely with ditch characteristics. (3) The major ruling characteristics are vegetative cover; ditch morphology; slope orientation; reach connections such as piped sections and weirs, soil, sediment and litter properties, biota, and biofilms; and network topology. (4) Ditch maintenance is an efficient engineering tool to optimize ecosystem services because several ditch characteristics change widely with ditch maintenance. For instance, maintenance operations, dredging, chemical weeding, and burning improve waterlogging and soil erosion control, but they are negative for biodiversity conservation. Mowing has low adverse effects on biodiversity conservation and water purification when mowing is performed at an adequate season. The effects of burning have been poorly investigated.

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Section: Waterlogging Controlmentioning

confidence: 99%

Section: Waterlogging Controlmentioning

confidence: 99%

Section: Waterlogging Controlmentioning

confidence: 99%

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Managing ditches for agroecological engineering of landscape. A review

Dollinger¹,

Dagès²,

Bailly

et al. 2015

Agron. Sustain. Dev.

119

View full text Add to dashboard Cite

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“…Soil and fire are the major determinants of plant community structure and composition in neotropical savannas (Silva 1996;Lehmann et al 2011). Recurrent fires modify many soil properties, such as the concentration of available nutrients, amount of organic matter, toxic elements, and soil texture (Kennard & Gholz 2001;González-Pérez et al 2004;Silva & Batalha 2008). Fire frequency and intensity alter savanna physiognomies and constrain the regional species pool, selecting species that are resistant or tolerant to fire (Gottsberger & Silberbauer--Gottsberger 2006).…”

Section: Introductionmentioning

confidence: 99%

Influence of fire history and soil properties on plant species richness and functional diversity in a neotropical savanna

2013

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Differences in plant species richness and composition are associated with soil properties and disturbances such as fire, which can therefore be key determinants of species occurrence in savanna plant communities. We measured species richness, using nine plant functional traits and abundance to calculate three functional diversity indices. We then used model selection analyses to select the best model for predicting functional diversity and richness based on soil variables at sites with three different fire frequencies. We also calculated the community-weighted mean of each trait and used ordination to examine how traits changed across fire frequencies. We found higher species richness and functional dispersion at sites that were more fertile and where fire was frequent, and the opposite at such sites where fire was infrequent. However, soil properties influenced functional evenness and divergence only where fire was infrequent, with higher values where soils were poorer. Fire can change functional traits directly by hindering development of plants and indirectly by altering competition. Different fire frequencies lead to different plant-soil relationships, which can affect the functioning of tropical savanna communities. Functional diversity components and functional identity of the communities are both affected by fire frequency and soil conditions. Keywords: cerrado; complementarity; fertility effect; plant traits; soil nitrogen Acta Botanica Brasilica 27(3): 490-497. 2013.

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“…The intensive use of heavy machinery during soil preparation, combined with crop burning to facilitate harvesting contributes to the degradation of soil organic matter and the decrease of soil fertility and crop yields Canellas et al, 2003;Busato et al, 2005a,b;Canellas et al, 2007;Baldotto et al, 2008). As a consequence of the high temperature on soil surface during burning, the oxygenated functional groups (González-Pérez et al, 2004), C, N, and O concentrations of SOM are diminished (Fernandez et al, 2004;Garcia-Gil et al, 2004). Similar alterations were observed in this study (Table 3).…”

Section: Resultsmentioning

confidence: 99%

Redox index of soil carbon stability

Baldotto

Canela²,

Canellas

et al. 2010

Rev. Bras. Ciênc. Solo

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SUMMARYAs an alternative to the relatively complex and expensive spectroscopic methods, the redox properties of humic acids, determined by potentiometric titrations, have been used to evaluate the stability of soil organic C. The objective of the present study was to establish a Redox Index of C Stability (RICS) and to correlate it with some properties of the humic acids extracted from different modal soils in Brazil (distinct weathering stages or management) to facilitate system comparison. The RICS was efficient for soil comparison and variations were comparable to those of the chemical and spectroscopic methods used for humic acid characterization. The values of soil pH, point of zero salt effect, sum of bases, exchangeable Ca content, weathering index, as well as the humic acid O/C ratio, quinone and semiquinone free radical contents, aromatic C and fluorescence intensity were closely related with the RICS. The RICS was higher in less weathered soils, with more active clays and higher fertility. The RICS values of soils under long-term sugarcane management were ranked in decreasing order: unburned, burned with vinasse, burned without vinasse.Index terms: soil chemistry, soil organic matter, humic substances, oxidation capacity.(1) Part of the doctoral and post doctoral works from the first author developed at the State University of the North Fluminense "Darcy Ribeiro" -UENF.

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The effect of fire on soil organic matter—a review

Cited by 972 publications

References 89 publications

Managing ditches for agroecological engineering of landscape. A review

Managing ditches for agroecological engineering of landscape. A review

Influence of fire history and soil properties on plant species richness and functional diversity in a neotropical savanna

Redox index of soil carbon stability

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