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

Solid Earth ◽  
2013 ◽  
Vol 4 (2) ◽  
pp. 497-509 ◽  
Author(s):  
M. A. Gabarrón-Galeote ◽  
J. F. Martínez-Murillo ◽  
M. A. Quesada ◽  
J. D. Ruiz-Sinoga
Keyword(s):  
Soil Water ◽  
Vegetation Type ◽  
Water Repellency ◽  
Vegetation Pattern ◽  
The South ◽  
Wet Season ◽  
Soil Water Repellency ◽  
The North ◽  
Mediterranean Areas ◽  
Set Up

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.

scholarly journals Seasonal changes of the soil hydrological and erosive response in contrasted Mediterranean eco-geomorphological conditions at patch scale

2013 ◽  
Vol 5 (2) ◽  
pp. 1423-1460 ◽  
Author(s):  
M. A. Gabarrón-Galeote ◽  
J. F. Martínez-Murillo ◽  
M. A. Quesada ◽  
J. D. Ruiz-Sinoga
Keyword(s):  
Soil Water ◽  
Seasonal Changes ◽  
Overland Flow ◽  
Hydrological Response ◽  
The South ◽  
Seasonal Behavior ◽  
Maximum Rainfall ◽  
Small Catchment ◽  
The North ◽  
Mediterranean Areas

Abstract. Mediterranean areas are characterized by a strong spatial variability that makes highly complex the soil hydrological response. Moreover, Mediterranean climate has a marked seasonal variability that provokes dramatic changes on the soil properties determining the hydrological behavior, such as soil water content, crust formation or soil water repellency (SWR). Thus, soil hydrological and erosive response in Mediterranean areas can be highly time- as well space-dependant. The main goal of this study was to characterize the relations between SWR, aspect and vegetation, determining the soil hydrological and erosive response throughout the rainy period in different microenvironments of opposite hillslopes. This study was undertaken in a small catchment located in the South of Spain. Erosion plots were installed in the north- and the south-facing hillslope, in areas with different vegetal cover, and runoff and sediments were collected. Moreover, precipitation parameters were recorded and SWR measurements were performed. SWR proved to have a significant effect on the soil hydrological response, but this influence was modulated by seasonal changes and by the discontinuities on the repellent layer. In general, the influence of SWR was restricted to the first rains after the summer and was greater on the north-facing hillslope due to the more continuous vegetation cover. The more important precipitation parameter influencing runoff generated was maximum rainfall intensity in ten minutes (Imax). The relation between Imax and overland flow showed a contrasting seasonal behavior in the north-facing hillslope and, on the contrary, remained homogeneous throughout the year in the south-facing hillslope.

Is soil water repellency a function of soil order and proneness to drought? A survey of soils under pasture in the North Island of New Zealand

2011 ◽  
Vol 62 (6) ◽  
pp. 765-779 ◽  
Author(s):  
M. Deurer ◽  
K. Müller ◽  
C. Van Den Dijssel ◽  
K. Mason ◽  
J. Carter ◽  
...  
Keyword(s):  
New Zealand ◽  
Soil Water ◽  
Water Repellency ◽  
Soil Water Repellency ◽  
The North

scholarly journals Environmental and economic consequences of soil water repellency under pasture

2010 ◽  
pp. 207-210 ◽  
Author(s):  
K. Müller ◽  
M. Deurer ◽  
M. Slay ◽  
T. Aslam ◽  
J.A. Carter ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Repellency ◽  
Economic Consequences ◽  
Water Dynamics ◽  
Soil Water Dynamics ◽  
Soil Water Repellency ◽  
The North ◽  
Current Survey ◽  
Widespread Phenomenon

Our current survey revealed that soil water repellency (SWR) is a widespread phenomenon under pasture in the North Island. If present, SWR controls soil water dynamics.

Relationship between soil properties and enzyme activities with soil water repellency

Soil Research ◽  
2019 ◽  
Vol 57 (6) ◽  
pp. 689 ◽  
Author(s):  
Robert M. Simpson ◽  
Karen Mason ◽  
Kyle Robertson ◽  
Karin Müller
Keyword(s):  
Microbial Community ◽  
Soil Water ◽  
Enzyme Activities ◽  
Chemical Properties ◽  
Late Summer ◽  
Water Repellency ◽  
Water Infiltration ◽  
Soil Water Repellency ◽  
Soil Microbial ◽  
The North

Soil water repellency (SWR) is a common phenomenon observed throughout the world. It has a significant impact on water infiltration, altering soil hydrology and consequently the soil microbial community and nutrient cycling. Despite the importance of this phenomenon, the processes involved in the development and breakdown of SWR are poorly understood. The importance of the microbial community for SWR is becoming increasingly apparent. In this study, relationships between microbial activities and SWR were investigated by utilising the patchy occurrence of SWR to select both repellent and wettable soils in six locations of the east coast of the North Island of New Zealand. Samples were from directly adjacent locations in mid spring and late summer, and a range of soil physico-chemical properties and enzyme activities were measured. The degree and potential persistence of SWR did not change between the two sampling times, whereas actual persistence of SWR increased. Soil moisture decreased between the two times, and although there was an inverse relationship between moisture and actual persistence of SWR in late summer, unexpectedly, it was a positive relationship in spring. Phosphatase, arylsulfatase and polysaccharide degrading enzyme activities increased with increasing SWR, whereas peroxidase activity decreased. The possible effects of increasing temperature and decreasing water content were modelled, and the observed relationships were strengthened. Arylsulfatase activity was strongly correlated with the degree of SWR, as was extractable organic sulfate, suggesting that the breakdown of sulfate-esters within humic material in soil may be involved in the release and accumulation of SWR-inducing hydrophobic compounds.

Soil water repellency in sandy soil depends on the soil drying method, incubation temperature and specific surface area

Geoderma ◽  
2021 ◽  
Vol 402 ◽  
pp. 115264
Author(s):  
Enoch V.S. Wong ◽  
Philip R. Ward ◽  
Daniel V. Murphy ◽  
Matthias Leopold ◽  
Louise Barton
Keyword(s):  
Specific Surface ◽  
Soil Water ◽  
Surface Area ◽  
Specific Surface Area ◽  
Sandy Soil ◽  
Incubation Temperature ◽  
Water Repellency ◽  
Soil Drying ◽  
Drying Method ◽  
Soil Water Repellency

The use of visible and near-infrared spectroscopy for the analysis of soil water repellency

2014 ◽  
Vol 65 (3) ◽  
pp. 360-368 ◽  
Author(s):  
I. Kim ◽  
R. R. Pullanagari ◽  
M. Deurer ◽  
R. Singh ◽  
K. Y. Huh ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Soil Water ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Water Repellency ◽  
Soil Water Repellency

Soil water repellency persistence after recurrent forest fires on Mount Carmel, Israel

2013 ◽  
Vol 22 (4) ◽  
pp. 515 ◽  
Author(s):  
Naama Tessler ◽  
Lea Wittenberg ◽  
Noam Greenbaum
Keyword(s):  
Organic Matter ◽  
Soil Water ◽  
Forest Fires ◽  
Water Drop ◽  
Chemical Properties ◽  
Water Repellency ◽  
Mediterranean Ecosystem ◽  
Long Term Effects ◽  
Soil Water Repellency ◽  
Chemical Properties Of Soils

Variations in forest fires regime affect: (1) the natural patterns of community structure and vegetation; (2) the physico-chemical properties of soils and consequently (3) runoff, erosion and sediment yield. In recent decades the Mediterranean ecosystem of Mount Carmel, north-western Israel, is subjected to an increasing number of forest fires, thus, the objectives of the study were to evaluate the long-term effects of single and recurrent fires on soil water repellency (WR) and organic matter (OM) content. Water repellency was studied by applying water drop penetration time (WDPT) tests at sites burnt by single-fire, two fires, three fires and unburnt control sites. Water repellency in the burnt sites was significantly lower than in the unburnt control sites, and the soil maintained its wettability for more than 2 decades, whereas after recurrent fires, the rehabilitation was more complicated and protracted. The OM content was significantly lower after recurrent than after a single fire, causing a clear proportional decrease in WR. The rehabilitation of WR to natural values is highly dependent on restoration of organic matter and revegetation. Recurrent fires may cause a delay in recovery and reduced productivity of the soil for a long period.

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