Investigating the nonlinear response of soil loss to storm direction using a circular soil flume

Lima, João L. M. P. de; Freitas-Tavares, Paulo; Singh, Vijay P.; Lima, M. Isabel P. de

doi:10.1016/j.geoderma.2009.05.004

Cited by 32 publications

(21 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Esses canais têm sido utilizados frequentemente para estudos de hidrologia de superfície (de Lima et al, 2003(de Lima et al, , 2008(de Lima et al, , 2009(de Lima et al, , 2011Montenegro et al, 2013aMontenegro et al, , 2013b, nomeadamente sobre a aplicação de termografia para estudos de erosão hídrica e de caracterização do escoamento superficial (de Lima & Abrantes, 2014a, 2014b. Os canais de terra utilizados permitem a percolação livre da água por meio da camada de solo.…”

Section: Instalação Experimentalunclassified

Termografia para determinação da microtopografia da superfície do solo em diferentes condições de cobertura morta

Abrantes¹,

Lima²

2014

Agraria

View full text Add to dashboard Cite

RESUMONeste estudo se apresentou uma técnica de termografia por infravermelhos, passível de ser útil na deteção da microtopografia da superfície do solo na presença de cobertura morta. Ensaios laboratoriais foram realizados com o objetivo de avaliar o desempenho da técnica numa superfície com sulcos artificiais em uma superfície com microtopografia criada por erosão hídrica para diferentes condições de cobertura morta (solo nu, 2 e 4 t ha -1 ). A microtopografia foi detetada aplicando-se água quente sobre a superfície do solo e se registando a temperatura com uma câmera de vídeo de infravermelhos. A técnica permitiu obter modelos 3D da superfície do solo para o cenário com sulcos artificiais e para os cenários com microtopografia criada por erosão hídrica. A termografia permitiu identificar caminhos preferenciais de escoamento e os diferentes elementos da microtopografia, mesmo na presença de 2 t ha -1 de cobertura morta, em superfície do solo. No cenário com densidade de cobertura de 4 t ha -1 , a deteção da radiação térmica emitida pela superfície do solo foi bastante afetada originando diminuição da performance da técnica estudada. Palavras-chave: deteção remota, erosão hídrica, microrrelevoThermography as a remote sensing tool of soil surface microtopography in the presence of mulch ABSTRACTIn this study we present an infrared thermography technique that can be useful to detect soil surface microtopography in the presence of mulch. Laboratory test were carried out where the performance of the technique was evaluated in a surface with artificial rills and in a surface with microtopography created by water erosion, for different mulch cover conditions (bare soil, 2 and 4 t ha -1 ). Microtopography was detected applying heated water on the soil surface and recording the temperature with an infrared video camera. The technique allowed us to obtain 3D models of soil surface elevation both in the scenario with artificial rills and in the scenario with microtopography created by water erosion. With this technique it was possible to identify preferential flow paths and the different elements of microtopography, even in the presence of 2 t ha -1 of mulch covering the soil surface. In the scenario with cover density of 4 t ha -1 , the detection of the thermal radiation emitted by the soil surface was severely affected, resulting in a decrease of the performance of the technique.

show abstract

Section: Instalação Experimentalunclassified

Termografia para determinação da microtopografia da superfície do solo em diferentes condições de cobertura morta

Abrantes¹,

Lima²

2014

Agraria

View full text Add to dashboard Cite

show abstract

“…Previous studies have shown that ignoring storm movement can result in considerable overestimation and underestimation of runoff peaks (de Lima and Singh, 2003;. de Lima et al (2009) simulated storms crossing in different directions, and showed that soil loss resulting from rainstorms moving in different directions were clearly linked to the characteristics of the corresponding overland flow hydrographs and peak discharge. also studied the relations among the direction of rainfall movement, the maximum peak discharge, and the network configuration.…”

Section: Introductionmentioning

confidence: 99%

“…Rainfall-runoff processes, together with the related upland erosion and sediment transport, are highly complex, and are impacted by two main aspects: rainfall and watershed characteristics (Yen and Chow, 1969;Singh, 2002;de Lima and Singh, 2003;Nunes et al, 2006;de Lima et al, 2009;Ran et al, 2012a;2012b;. Watershed characteristics usually include topography, shape, slope, drainage pattern, etc.…”

Section: Introductionmentioning

confidence: 99%

“…(Montgomery and Dietrich, 2002;Assouline and Ben-Hur, 2006;Ran et al, 2009;. Rainfall characteristics, including rainfall intensity, duration, direction, and velocity of movement, are more variable, in spatial and temporal contexts, and often impact both the integrated response (e.g., runoff hydrograph) (de Lima et al, 2009; and the distributed response (e.g., the temporal and spatial variability of soil moisture) (Ran et al, 2009;2012a).…”

Section: Introductionmentioning

confidence: 99%

“…The influences of rainfall characteristics on hydrologic responses have been investigated experimentally (de Lima et al, 2009;Ran et al, 2011;2012b;2012c;He et al, 2013), using field investigations (Ran et al, 2011), and through computational modeling (Singh, 2005;Nunes et al, 2006;Ran et al, 2009). Olson and Wischmeier (1963) measured the soil loss per unit of rainfall erosivity based on simulated rainfall and plot experiments, and then scientists led by Wischmeier developed the famous universal soil loss equation (USLE), in which rainfall was considered a major influencing factor impacting overflow (Foster et al, 1977;Wischmeier and Smith, 1978).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Canonical correlation analysis of hydrological response and soil erosion under moving rainfall

Shi

2013

J. Zhejiang Univ. Sci. A

View full text Add to dashboard Cite

Abstract:The impacts of rainfall direction on the degree of hydrological response to rainfall properties were investigated using comparative rainfall-runoff experiments on a small-scale slope (4 m×1 m), as well as canonical correlation analysis (CCA). The results of the CCA, based on the observed data showed that, under conditions of both upstream and downstream rainfall movements, the hydrological process can be divided into instantaneous and cumulative responses, for which the driving forces are rainfall intensity and total rainfall, and coupling with splash erosion and wash erosion, respectively. The response of peak runoff (P r ) to intensity-dominated rainfall action appeared to be the most significant, and also runoff (R) to rainfall-dominated action, both for upstream-and downstream-moving conditions. Furthermore, the responses of sediment erosion in downstream-moving condition were more significant than those in upstream-moving condition. This study indicated that a CCA between rainfall and hydrological characteristics is effective for further exploring the rainfall-runoff-erosion mechanism under conditions of moving rainfall, especially for the downstream movement condition.

show abstract

Impact of rainfall pattern on interrill erosion process

Wang

Steiner

Zheng

et al. 2017

Earth Surf Processes Landf

View full text Add to dashboard Cite

The impact of rainfall pattern on the interrill erosion process is not fully understood despite its importance. Systematic rainfall simulation experiments involving various rainfall intensities, stages, intensity sequences, and surface cover conditions were conducted in this study to investigate their effects on the interrill erosion process. Five rainfall patterns designed with the same total kinetic energy/precipitation (increasing, decreasing, rising-falling, falling-rising and constant patterns) were randomly delivered to a pre-wet clay loam soil surface at a 10°slope gradient. Significant differences in soil losses were observed among the different rainfall patterns and stages, but there was no obvious difference in runoff. Kinetic energy flux (KE r ) was a governing factor for interrill erosion, and constant rainfall pattern (CST) produced nine times greater soil loss than runs with no KE r . Varied-intensity patterns had a profound effect on raindrop-induced sediment transport processes; path analysis results indicated that said effect was complex, interactive and intensity-dependent. Low hydraulic parameter thresholds further indicated that KE r was the dominant factor in detaching soil particles, while overland flow mainly contributed to transporting the pre-detached particles. This study not only sheds light on the mechanism of interrill sediment transport capacity and detachability, but also may provide a useful database for developing event-based interrill erosion prediction models.

show abstract

Investigating the nonlinear response of soil loss to storm direction using a circular soil flume

Cited by 32 publications

References 29 publications

Termografia para determinação da microtopografia da superfície do solo em diferentes condições de cobertura morta

Termografia para determinação da microtopografia da superfície do solo em diferentes condições de cobertura morta

Canonical correlation analysis of hydrological response and soil erosion under moving rainfall

Impact of rainfall pattern on interrill erosion process

Contact Info

Product

Resources

About