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Effect of root density on erosion and erodibility of a loamy soil under simulated rain

(2013) SOIL SCIENCE. 178(1). p.29-36
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Abstract
Although both aboveground and belowground components of vegetation act together in reducing soil erosion, mainly the aboveground component has received attention in past research. The aim of this study was to evaluate the contribution of roots in soil erosion control and the effect of root density in soil erodibility and soil physical properties. Perennial ryegrass (Lolium perenne L. Hugo) was grown in soil pans, and laboratory rainfall simulation experiments were conducted after 4, 8, 12 weeks of their growth with seeding density of 50 kg ha-1, after 4 weeks for seeding density of 100 kg ha-1, and on a control. The experiments with ryegrass were done in the presence of complete plants and after clipping off the shoots. Roots of ryegrass grew rapidly, attaining densities of 0.614 kg m-2 and 2.280 kg m-2 in 4 and 12 weeks, respectively. With increasing root density, splash and wash decreased exponentially. There was positive correlation between soil shear strength and root density, but no influence of roots on bulk density and saturated hydraulic conductivity was observed.
Keywords
RUNOFF, IMPACT, WATER, root density, ryegrass, soil erodibility, soil erosion, AGGREGATE STABILITY, PLANT-ROOTS, CONCENTRATED FLOW, ORGANIC-MATTER, SHEAR-STRENGTH, SPLASH DETACHMENT, GRASS-ROOTS, Rainfall simulation

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Chicago
Katuwal, Sheela, Jan Vermang, Wim Cornelis, Donald Gabriëls, Per Moldrup, and Lis Wollesen de Jonge. 2013. “Effect of Root Density on Erosion and Erodibility of a Loamy Soil Under Simulated Rain.” Soil Science 178 (1): 29–36.
APA
Katuwal, Sheela, Vermang, J., Cornelis, W., Gabriëls, D., Moldrup, P., & Wollesen de Jonge, L. (2013). Effect of root density on erosion and erodibility of a loamy soil under simulated rain. SOIL SCIENCE, 178(1), 29–36.
Vancouver
1.
Katuwal S, Vermang J, Cornelis W, Gabriëls D, Moldrup P, Wollesen de Jonge L. Effect of root density on erosion and erodibility of a loamy soil under simulated rain. SOIL SCIENCE. 2013;178(1):29–36.
MLA
Katuwal, Sheela, Jan Vermang, Wim Cornelis, et al. “Effect of Root Density on Erosion and Erodibility of a Loamy Soil Under Simulated Rain.” SOIL SCIENCE 178.1 (2013): 29–36. Print.
@article{3159419,
  abstract     = {Although both aboveground and belowground components of vegetation act together in reducing soil erosion, mainly the aboveground component has received attention in past research. The aim of this study was to evaluate the contribution of roots in soil erosion control and the effect of root density in soil erodibility and soil physical properties. Perennial ryegrass (Lolium perenne L. Hugo) was grown in soil pans, and laboratory rainfall simulation experiments were conducted after 4, 8, 12 weeks of their growth with seeding density of 50 kg ha-1, after 4 weeks for seeding density of 100 kg ha-1, and on a control. The experiments with ryegrass were done in the presence of complete plants and after clipping off the shoots. Roots of ryegrass grew rapidly, attaining densities of 0.614 kg m-2 and 2.280 kg m-2 in 4 and 12 weeks, respectively. With increasing root density, splash and wash decreased exponentially. There was positive correlation between soil shear strength and root density, but no influence of roots on bulk density and saturated hydraulic conductivity was observed.},
  author       = {Katuwal, Sheela and Vermang, Jan and Cornelis, Wim and Gabri{\"e}ls, Donald and Moldrup, Per and Wollesen de Jonge, Lis},
  issn         = {0038-075X},
  journal      = {SOIL SCIENCE},
  keyword      = {RUNOFF,IMPACT,WATER,root density,ryegrass,soil erodibility,soil erosion,AGGREGATE STABILITY,PLANT-ROOTS,CONCENTRATED FLOW,ORGANIC-MATTER,SHEAR-STRENGTH,SPLASH DETACHMENT,GRASS-ROOTS,Rainfall simulation},
  language     = {eng},
  number       = {1},
  pages        = {29--36},
  title        = {Effect of root density on erosion and erodibility of a loamy soil under simulated rain},
  url          = {http://dx.doi.org/10.1097/SS.0b013e318285b052},
  volume       = {178},
  year         = {2013},
}

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