Influence of soil, land use and climatic factors on the hydraulic conductivity of soil

Jarvis, Nick; Koestel, John; Messing, Ingmar; Moeys, Julien; Lindahl, Anna

doi:10.5194/hess-17-5185-2013

Cited by 217 publications

(167 citation statements)

References 52 publications

Supporting

Mentioning

108

Contrasting

Order By: Relevance

“…Although these studies contributed to a better understanding of the effect of alpine ecosystem variations on soil hydraulic properties, they primarily addressed the change patterns of hydraulic properties. Moreover, it has been confirmed that soil physical and chemical properties, such as soil porosity, texture and organic matter content, are closely connected with soil hydraulic properties (Fu et al, 2015;Jarvis et al, 2013;Strudley et al, 2008). However, studies about the quantitative relationships between soil hydraulic properties and physicochemical properties are still relatively limited.…”

Section: Introductionmentioning

confidence: 99%

“…Because of the inconsistent changing pattern, K s only positively correlated with NCP (Table 3). In fact, arguments about the impact of soil properties on K s and its changes are still under debate (Fu et al, 2015;Jarvis et al, 2013). Hence, further investigations about variations of K s are needed.…”

Section: Influencing Factors Of Alpine Swamp Meadow Degradation On Somentioning

confidence: 99%

“…FC and K s are mainly influenced by vegetation, soil (Pachepsky and Park, 2015), topography (Leij et al, 2004), climate (Jarvis et al, 2013) and human activities (Mubarak et al, 2009;Palese et al, 2014). In recent years, vegetation degradation has been widespread because of natural environmental changes and anthropogenic influences.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Variation of soil hydraulic properties with alpine grassland degradation in the eastern Tibetan Plateau

Pan

Hou

et al. 2017

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Ecosystems in alpine mountainous regions are vulnerable and easily disturbed by global environmental change. Alpine swamp meadow, a unique grassland type in the eastern Tibetan Plateau that provides important ecosystem services to the upstream and downstream regions of international rivers of Asia and other parts of the world, is undergoing severe degradation, which can dramatically alter soil hydraulic properties and water cycling processes. However, the effects of alpine swamp meadow degradation on soil hydraulic properties and the corresponding influencing mechanisms are still poorly understood. In this study, soil moisture content (SMC), field capacity (FC) and saturated hydraulic conductivity (K s ) together with several basic soil properties under lightly degraded (LD), moderately degraded (MD) and severely degraded (SD) alpine swamp meadow were investigated; the variations in SMC, FC and K s with alpine swamp meadow degradation and their dominant influencing factors were analysed. The results showed that SMC and FC decreased consistently from LD to SD, while K s decreased from LD to MD and then increased from MD to SD, following the order of LD > SD > MD. Significant differences in soil hydraulic properties between degradation degrees were found in the upper soil layers (0-20 cm), indicating that the influences of degradation were most pronounced in the topsoils. FC was positively correlated with capillary porosity, water-stable aggregates, soil organic carbon, and silt and clay content; K s was positively correlated with non-capillary porosity (NCP). Relative to other soil properties, soil porosity is the dominant factor influencing FC and K s . Capillary porosity explained 91.1 % of total variance in FC, and NCP explained 97.3 % of total variance in K s . The combined effect of disappearing root activities and increasing sand content was responsible for the inconsistent patterns of NCP and K s . Our findings suggest that alpine swamp meadow degradation would inevitably lead to reduced water holding capacity and rainfall infiltration. This study provides a more comprehensive understanding of the soil hydrological effects of vegetation degradation. Further hydrological modelling studies in the Tibetan Plateau and similar regions are recommended to understand the effects of degraded alpine swamp meadows on soil hydraulic properties.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Influencing Factors Of Alpine Swamp Meadow Degradation On Somentioning

confidence: 99%

See 1 more Smart Citation

Variation of soil hydraulic properties with alpine grassland degradation in the eastern Tibetan Plateau

Pan

Hou

et al. 2017

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…Moreover, pedotransfer functions are widely developed (Cosby et al, 1984;Rawls and Brakensiek, 1989;Wosten et al, 2001;Schaap et al, 2001) and allow describing of the parameters necessary for the resolution of the Richards equation using soil characteristics such as the soil texture and bulk density. Chanzy et al (2008) demonstrated that pedotransfer functions may allow for a good approximation for agricultural soil water representation even though the adequacy of pedotransfer functions close to the surface is still under discussion (Jarvis et al, 2013), especially for wet conditions when preferential flow occurs.…”

Section: -J Tinet Et Al: Development and Evaluation In Bare Soil Comentioning

confidence: 99%

Development and evaluation of an efficient soil-atmosphere model (FHAVeT) based on the Ross fast solution of the Richards equation for bare soil conditions

Tinet

Chanzy²,

Braud

et al. 2015

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. In agricultural management, a good timing in operations, such as irrigation or sowing, is essential to enhance both economical and environmental performance. To improve such timing, predictive software are of particular interest. Optimal decision-software would require process modules which provide robust, efficient and accurate predictions while being based on a minimal amount of parameters easily available. The objective of this study is to assess the accuracy of a physically based model with high efficiency. To this aim, this paper develops a coupled model with climatic forcing based on the Ross fast solution for Richards' equation, heat transfer and detailed surface energy balance. The present study is limited to bare soil, but the impact of vegetation can be easily included. The developed model, FHAVeT (Fast Hydro Atmosphere Vegetation Temperature), is evaluated against the coupled model based on the Philip and De Vries (1957) description, TEC. The two models were compared for different climatic and soil conditions. Moreover, the model allows using various pedotransfer functions. The FHAVeT model showed better performance in regards to mass balance, mostly below 0.002 m, and generally improved computation time. In order to allow for a more precise comparison, six time windows were selected. The study demonstrated that the FHAVeT behaviour is quite similar to the TEC behaviour except under some dry conditions. The ability of the models to detect the occurrence of soil intermediate water content thresholds with a 1 day tolerance was also evaluated. Both models agreed in more than 90 % of the cases.

show abstract

“…CC BY 4.0 License. Estringana et al, 2013) and has a crucial influence on soil hydraulic properties, in particular soil hydraulic conductivity (Gonzales-Soza et al, 2010;Jarvis et al, 2013). Moreover, it is easy to assess in the field or from remote sensing data.…”

Section: Introductionmentioning

confidence: 99%

How does initial soil moisture influence the hydrological response? A case study from southern France

Uber¹,

Vandervaere²,

Zin³

et al. 2018

Preprint

View full text Add to dashboard Cite

Abstract. The Cévennes-Vivarais region in southern France is prone to high intensity and long lasting rainfalls that can lead to flash floods which are one of the most hazardous natural risks in Europe. The results of numerous studies show that besides rainfall depth and intensity and catchment characteristics such as topography, geology, land use and hydraulic routing, the catchment's initial soil moisture also impacts the hydrological response to rain events. The aim of this paper is to 15 analyze the relationship between catchment mean initial soil moisture ̃i ni and the hydrological response that is quantified using the event-based runoff coefficient ϕ ev in the two nested catchments of the Gazel (3.4 km 2 ) and the Claduègne (43 km 2 ).To this end, two research questions are addressed: (1) How heterogeneous are soil moisture patterns in space and time and do they correlate with land use? (2) How does soil moisture at the event onset affect the hydrological response?The estimation of soil moisture at catchment scale is hindered by high spatial and temporal variability. A sampling setup 20 including 45 permanently installed frequency domain reflectancy probes that continuously measure volumetric soil moisture at three depths is applied. Additionally, on-alert measurements of soil moisture in the topsoil at ≈ 10 locations in each one of 11 plots are conducted. Thus, catchment mean soil moisture can be confidently assessed with a standard error of the mean of ≤1.7 vol% over a wide range of soil moisture conditions. ϕ ev is calculated from high-resolution discharge and precipitation data for several rain events with a cumulative precipitation 25 P cum ranging from less than 5 mm to more than 80 mm. Because of the high uncertainty of ϕ ev associated to the hydrograph separation method, ϕ ev is calculated with several methods, including graphical methods, digital filters and a tracer based method. The results indicate that the hydrological response depends on ̃i ni : the seasonal as well as the within-event discharge dynamics follow that of soil moisture. During dry conditions ϕ ev is consistently close to zero, even for events with high and intense precipitation. Above a threshold of ̃i ni = 34 vol% ϕ ev can reach values up to 0.99 but there is a high scatter. 30 Some variability can be explained with a weak correlation of ϕ ev with P cum and rain intensity, but a considerable part of the variability remains unexplained.

show abstract

Influence of soil, land use and climatic factors on the hydraulic conductivity of soil

Cited by 217 publications

References 52 publications

Variation of soil hydraulic properties with alpine grassland degradation in the eastern Tibetan Plateau

Variation of soil hydraulic properties with alpine grassland degradation in the eastern Tibetan Plateau

Development and evaluation of an efficient soil-atmosphere model (FHAVeT) based on the Ross fast solution of the Richards equation for bare soil conditions

How does initial soil moisture influence the hydrological response? A case study from southern France

Contact Info

Product

Resources

About