Intensity and persistence of water repellency in relation to vegetation types and soil parameters in Mediterranean SW Spain

Zavala, Lorena M.; González, Félix A.; Jordán, António

doi:10.1016/j.geoderma.2009.07.011

Cited by 89 publications

(68 citation statements)

References 89 publications

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“…This reduction of SWR was not observed in the case of inter-shrub areas of the southfacing hillslope, given that soils were already wettable during the transition season. Thus, SWR results highlighted the seasonal character of this property, reported widely in the literature in temperate humid areas as well as in semiarid environments (Witter et al, 1991;Kaiser et al, 2001;Benito et al, 2003;Whal, 2008;Zavala et al, 2009). SWR is commonly associated to dry soils and it is supposed to disappear when soil water content increases to a critical soil moisture threshold (Crockford et al, 1991;Imeson et al, 1992;Ritsema and Dekker, 1994;Moody et al, 2009;Santos et al, 2013).…”

Section: Soil Water Repellencysupporting

confidence: 57%

Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments

et al. 2013

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Abstract. Mediterranean areas are characterized by a strong spatial variability that makes the soil hydrological response highly complex. Moreover, Mediterranean climate has marked seasons that provoke dramatic changes on soil properties determining the runoff rates, such as soil water content or soil water repellency (SWR). Thus, soil hydrological and erosive response in Mediterranean areas can be highly time-as well as space-dependant. This study shows SWR, aspect and vegetation as factors of the soil hydrological and erosive response. Erosion plots were set up in the north-and the south-facing hillslope and rainfall, runoff, sediments and SWR were monitored. Soil water repellency showed a seasonal behaviour and it was presented in three out of four microenvironments after the summer, disappearing in the wet season. In general, runoff rate was higher in shrubs patches (0.47 ± 0.67 mm) than in inter-shrub soils (1.54 ± 2.14 mm), but it changed seasonally in different ways, depending on the aspect considered, decreasing in the north-facing hillslope and increasing in the south-facing one. The main factor determining the hydrological and erosive response was the rainfall intensity, regardless of the rainfall depth of the event. This response was modulated mainly by SWR in the north-facing hillslope and the vegetation pattern in the south-facing one.

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Section: Soil Water Repellencysupporting

confidence: 57%

Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments

et al. 2013

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“…Extreme values of MeanLST, about 30 °C, correspond to areas of sparse vegetation such as Tabernas Desert in the southeast characterized by high aridity and low moisture index, as reported by previous studies [45]. These areas have a period of drought during the summer with a low vegetative productivity due to the connection of LST with the length of the vegetative period and evapotranspiration [81].…”

Section: Examples Of Functional Attributessupporting

confidence: 69%

Identification of Ecosystem Functional Types from Coarse Resolution Imagery Using a Self-Organizing Map Approach: A Case Study for Spain

et al. 2014

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Ecosystem state can be characterized by a set of attributes that are related to the ecosystem functionality, which is a relevant issue in understanding the quality and quantity of ecosystem services and goods, adaptive capacity and resilience to perturbations. This study proposes a major identification of Ecosystem Functional Types (EFTs) in Spain to characterize the patterns of ecosystem functional diversity and status, from several functional attributes as the Normalized Difference Vegetation Index (NDVI), Land Surface Temperature (LST) and Albedo. For this purpose, several metrics, related to the spatial variability in seasonal and annual patterns (e.g., relative range), have been derived from remote sensing time series of 1 km MODIS over the period 2000-2009. Moreover, precipitation maps from data provided by the AEMet (Agencia Estatal de Meteorología) and the corresponding aridity and humidity indices were also included in the analysis. To create the EFTs, the potential of the joint use of Kohonen's Self-Organizing Map (SOM) and the k-means clustering algorithm was tested. The EFTs were analyzed using different remote sensing (i.e., Gross Primary Production) and climatic variables. The relationship of the EFTs with existing land cover datasets and climatic data were analyzed through a correspondence analysis (CA

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“…In other cases, poor or no significant correlations between SOM content and WR have also been reported (DeBano, 1981;Ritsema and Dekker, 1994;Scott, 2000). This inconsistency has been attributed to the fact that only a small amount of compounds of SOM is really implicated in WR (Mataix-Solera and Doerr, 2004;Zavala et al, 2009). WR might be controlled by the type and quality of organic matter rather than by its amount (DeBano et al, 1970;Wallis and Horne, 1992).…”

Section: Discussionmentioning

confidence: 99%

“…In the Mediterranean areas different evergreen trees (such as Pinus and Quercus) and shrubs are usually associated with soil WR under natural conditions (Arcenegui et aL, 2008;Jordán et aL, 2008;Mataix-Solera et al, 2007;Verheijen and Cammeraat, 2007 ). Ihere is a large quantity of research publications that associate soil WR with the SOM content (Doerr et aL, 2000;Mataix-Solera and Doerr, 2004;Zavala et aL, 2009). Despite this, many of them suggest that this relationship could be due to the quality ofSOM (Mataix-Solera et aL, 2007;Rumpel et aL, 2004).…”

Section: Introductionmentioning

confidence: 99%

Biological and chemical factors controlling the patchy distribution of soil water repellency among plant species in a Mediterranean semiarid forest

et al. 2013

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Natural soil water repellency is a property that has already been observed in forest soils and is characterized by its patchydistribution. Ihere are many factors involved in its development. In this work, we have studied a large numberof chemical and biological factors underthe influence of differentplantspecies (Pinus halepensis, Quercus rotundifolia, Cistus albidus and Rosmarinus officinalis) to leam which has the greatest responsibility for its presence and persistence in the top-soillayer. We obselVed strong and significant correlations between ergosterol, giomalin related soil protein (GRSP), extractable lipids, soil organic matter (SOM) content and water repellency (WR). Our results suggested lipid fraction as the principal factor. Moreover, apart from Pinus, fungal biomass seems to be also related to the SOM content. Soil WR found under Pinus appears to be the most influenced by fungi. Quality of SOM, to be precise, lipid fraction could be responsible for WR and its relationship with fungal activity.

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Intensity and persistence of water repellency in relation to vegetation types and soil parameters in Mediterranean SW Spain

Cited by 89 publications

References 89 publications

Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments

Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments

Identification of Ecosystem Functional Types from Coarse Resolution Imagery Using a Self-Organizing Map Approach: A Case Study for Spain

Biological and chemical factors controlling the patchy distribution of soil water repellency among plant species in a Mediterranean semiarid forest

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