Water repellency and pore clogging at early successional stages of microbiotic crusts on inland dunes, Brandenburg, NE Germany

Fischer, Thomas; Veste, Maik; Wiehe, Wolfgang; Lange, Philipp

doi:10.1016/j.catena.2009.08.009

Cited by 131 publications

(116 citation statements)

References 18 publications

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“…Compared to other values of RI measurements from BSCs around the world, ranging from a RI of 4.4 to 210 (cf. Drahorad et al, 2013b;Fischer et al, 2010;Lichner et al, 2013Lichner et al, , 2007) the values measured for the crust in the NW Negev are located in the lower RI range with the highest RI values on wet crust in N84 of 5.70 (see Table 2). The comparison of the RIs between the three sites showed that WR is significantly higher in N84 compared to NS and N69 (p < 0.05).…”

Section: Resultsmentioning

confidence: 93%

“…Lichner et al (2013) showed that species composition had a strong effect on the development of WR. Fischer et al (2010) described an increase of WR in the first successional stages that where dominated by cyanobacteria and green algae and a decrease with further succession that introduced bryophytes. Lichens were reported to possess WR properties Rodríguez-Caballero et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

“…The modifications in hydrological surface properties are due to a multitude of factors associated with the BSCs, including texture (Fischer et al, 2013), surface roughness (Rodríguez-Caballero et al, 2012), vesicular porosity and capillary barriers , pore clogging and swelling of organic crust components (Fischer et al, 2010;Kidron et al, 1999) as well as water repellency (WR) (Drahorad et al, 2013b;Fischer et al, 2010). Recently the importance of the single factors have not been characterized systematically, as the complex interactions between them make it difficult to state general claims on their importance.…”

Section: Introductionmentioning

confidence: 99%

“…Lichner et al (2007) showed that the RI method is well suited for a wide range of hydrophobic soils. The RI method was successfully used in several ecosystems to investigate WR on BSCs in a range of studies (Drahorad et al, 2013b;Fischer et al, 2010;Lichner et al, 2013). In the sand dune ecosystems of the NW Negev the content of SOM within the BSC is higher compared to the topsoil (Drahorad et al, 2013a;Yair et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…In the sand dune ecosystems of the NW Negev the content of SOM within the BSC is higher compared to the topsoil (Drahorad et al, 2013a;Yair et al, 2011). Moreover, the living crust components like green algae, cyanobacteria, bacteria, lichens and filamentous fungi produce extracellular polymeric substances that are reported to possess hydrophobic properties Fischer et al, 2010Fischer et al, , 2013Hakanpää et al, 2004;Rillig, 2005;Young et al, 2012). This led scientists to elaborate on WR of the BSCs within the NW Negev using the WDPT test (Kidron et al, , 2010Kidron and Büdel, 2014;Yair et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Biological soil crusts cause subcritical water repellency in a sand dune ecosystem located along a rainfall gradient in the NW Negev desert, Israel

Keck¹,

Felde

Drahorad

et al. 2016

Journal of Hydrology and Hydromechanics

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Abstract:The biological soil crusts (BSCs) in the NW Negev cause local water redistribution by increasing surface runoff. The effects of pore clogging and swelling of organic and inorganic crust components were intensively investigated in earlier studies. However, the effect of water repellency (WR) was not addressed systematically yet. This study investigates subcritical WR of BSCs in three different study sites in the NW Negev. For this purpose, three common methods to determine soil WR were used: (i) the repellency index (RI) method (ii) the water drop penetration time (WDPT) test and (iii) the Wilhelmy plate method (WPM). Furthermore, the potential influence of WR on local water redistribution is discussed and the applied methods are compared. We found the BSC to be subcritically water repellent. The degree of WR may only affect water redistribution on a microscale and has little influence on the ecosystem as a whole. The RI method was clearly the most appropriate to use, whereas the WDPT and the WPM failed to detect subcritical WR.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Biological soil crusts cause subcritical water repellency in a sand dune ecosystem located along a rainfall gradient in the NW Negev desert, Israel

Keck¹,

Felde

Drahorad

et al. 2016

Journal of Hydrology and Hydromechanics

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Biologische Bodenkrusten

Felde¹,

Colesie²

2018

Handbuch Der Bodenkunde

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Biocrusts positively affect the soil water balance in semiarid ecosystems

et al. 2016

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Biocrusts play crucial roles in hydrological processes by controlling soil water availability and regulating water redistribution from source to sink areas. Most studies have examined the influence of biocrusts on isolated components of the soil water balance, but few have addressed this matter from an integrated point of view, involving their influence on all components together. Such integration is crucial to elucidate the overall effects of biocrusts on the soil water balance. The aim of this study was to review the role of biocrusts in the soil water balance, by examining their influence on infiltration, evaporation and soil moisture at plot scale, in two contrasting ecosystems of SE Spain. Our results show that biocrust infiltration was higher in flat soils with sandy loam texture than in steep soils with silty loam texture. The influence of biocrusts on infiltration depended on rainfall intensity. Biocrusts increased infiltration with respect to biocrust-removed soils during low intensity rainfalls but showed similar or even lower infiltration than biocrust-removed soils during high-intensity events. As a result of the increase in infiltration and a decrease in evaporation during wet cold periods, biocrusts increased soil moisture when compared with biocrust-removed soils. However, during warm periods, biocrusts and biocrust-removed soils lost water very quickly, thus resulting in similar water losses and moisture content under both types of surfaces. We conclude that biocrusts increase water input by increasing infiltration and soil moisture, and reduce water output by reducing soil evaporation, thus eventually enhancing the available water to plants. Copyright (C) 2016 John Wiley & Sons, Ltd

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Water repellency and pore clogging at early successional stages of microbiotic crusts on inland dunes, Brandenburg, NE Germany

Cited by 131 publications

References 18 publications

Biological soil crusts cause subcritical water repellency in a sand dune ecosystem located along a rainfall gradient in the NW Negev desert, Israel

Biological soil crusts cause subcritical water repellency in a sand dune ecosystem located along a rainfall gradient in the NW Negev desert, Israel

Biologische Bodenkrusten

Biocrusts positively affect the soil water balance in semiarid ecosystems

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