The influence of land management and soil characteristics on infiltration and the occurrence of overland flow

Hills, Rodney C.

doi:10.1016/0022-1694(71)90213-7

Cited by 19 publications

(8 citation statements)

References 4 publications

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“…Per capita plant growth is assumed to be jointly proportional to water density and biomass. The dependence on biomass reflects the positive correlation between the infiltration capacity of soil and its vegetation level in semi-arid environments (Hills 1971;Callaway 1995;Rietkerk et al 2000). Plant loss is assumed to occur at a constant per capita rate, which may include herbivory.…”

Section: Model Equations and The Form Of Patternsmentioning

confidence: 99%

Pattern solutions of the Klausmeier model for banded vegetation in semi-arid environments II: patterns with the largest possible propagation speeds

Sherratt

2011

Proc. R. Soc. A.

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Pattern formation at the ecosystem level is a rapidly growing area of spatial ecology. The best studied example is vegetation stripes running along contours in semi-arid regions. Theoretical models are a widely used tool for studying these banded vegetation patterns, and one important model is the system of advection-diffusion equations proposed by Klausmeier. The present study is part of a series of papers whose objective is a comprehensive understanding of patterned solutions of the Klausmeier model. The author focuses on the region of parameter space in which the propagation speed of the patterns is close to its maximum possible value. Exploiting the large value of one of the model parameters, a leading order approximation is obtained for the maximum propagation speed, and the author undertakes a detailed investigation of the parameter region in which there are patterns with speeds close to this maximum.

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Section: Model Equations and The Form Of Patternsmentioning

confidence: 99%

Pattern solutions of the Klausmeier model for banded vegetation in semi-arid environments II: patterns with the largest possible propagation speeds

Sherratt

2011

Proc. R. Soc. A.

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“…A 5-minute intensity of 177*6mm/h has a recurrence interval of 100 years in the Netherlands, and a 5-minute intensity of 45.6mm/h occurs once every year (van der Herik and Kooistra (1973)). Hills (1971) recorded one rainfall event with a duration of 1 min and an intensity of 101.6mm/h in 5 years near Bristol in SW England. It is known, that flooding type infiltrometers produce figures which may be much higher than values under sprinkling or natural rainfall and that infiltrometer tests really have comparative value only.…”

Section: Permeability and Injiltration Capacity Measurementsmentioning

confidence: 99%

Measurements of rainsplash erosion and the formation of colluvium beneath deciduous woodland in the Luxembourg Ardennes

Kwaad

1977

Earth Surf. Process.

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SUMMARYIn wooded dry valleys in the Luxembourg Ardennes a gravelly and slightly organic colluvial deposit occurs. The depositionary nature of the material is ascertained by its micromorphological characteristics and its position on top of a truncated argillic horizon of an older soil. Pollen analysis revealed the colluvium to have been formed in the last 500 years, the lower 37 cm in the Haarts valley under non-forest (presumably arable land) conditions and the upper lOcm under today's oak woodland. A formation of the colluvium by Horton overland flow is ruled out by permeability and infiltration capacity measurements of the forest soil. The importance of rainsplash erosion for the formation of the upper part of the colluvium is demonstrated with simplified Ellison type splash boards. Two modes of transport, induced by raindrop impact, may be distinguished, one through the air (particles up to 6.3mm) and ' one across the soil surface (particles up to and above 1 cm). The overall grain size distribution of the trapped soil strongly resembles that of the colluvium, and the gravel sized rock fragments in the colluvium certainly do not exclude an origin by rainsplash erosion.

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“…It is a key threshold regulator in the hydrological cycle and controls soil moisture, drainage and recharge (Horton, 1940;Philip, 1957;Hills, 1970Hills, , 1971Hillel, 1982). Infiltration can be measured using several methods, including single and double ring infiltrometers and rainfall simulators.…”

Section: Infiltration Studiesmentioning

confidence: 99%

Drip-screen rainfall simulators for hydro- and pedo-geomorphological research: the Coventry experience

Foster

Fullen

Brandsma

et al. 2000

Earth Surf. Process. Landforms

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Seven case studies are presented, demonstrating the successful use of a laboratory-based drip-screen rainfall simulator at Coventry University to investigate several hydrological, pedological and geomorphological problems. The results of previously unpublished studies are presented in full, while the salient points of published studies are discussed. Synthesis of the experimental results led to the recognition of various philosophical and practical problems associated with the realistic simulation of rain, which need to be addressed in future research. Particular problems are posed by the variety of analytical approaches and simulator designs, as they impede meaningful inter-laboratory comparisons. It is argued that future improvements require optimization, harmonization and standardization of analytical procedures and rainfall simulators. An ideal approach would be the development of a European key laboratory to offer realistic and standardized simulation conditions.

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The influence of land management and soil characteristics on infiltration and the occurrence of overland flow

Cited by 19 publications

References 4 publications

Pattern solutions of the Klausmeier model for banded vegetation in semi-arid environments II: patterns with the largest possible propagation speeds

Pattern solutions of the Klausmeier model for banded vegetation in semi-arid environments II: patterns with the largest possible propagation speeds

Measurements of rainsplash erosion and the formation of colluvium beneath deciduous woodland in the Luxembourg Ardennes

Drip-screen rainfall simulators for hydro- and pedo-geomorphological research: the Coventry experience

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