Surface runoff as affected by surface gradient and grass cover
2001
Shafiq, M. | Ahmad, B. (National Agricultural Research Centre, Islamabad (Pakistan). Water Resources Research Inst.)
A field study was conducted to evaluate the effect of slope gradients and grass cover on surface runoff under medium rainfall zone of silt loam soils. Plots of 5 m x 2 m size with 1, 5 and 10 percent slope gradients were used under natural rainfall. The grass species consisted of Mott and Cenchrus. A statistically significant increase in surface runoff was observed with the increase in surface gradient. Mean values of runoff consisted of 11.2, 18.1 and 26.6 percent of incident rainfall under 1, 5 and 10 percent slope gradients respectively. Surface runoff under Mott grass was low (16.30) than Cenchrus grass (20.9%). The dry biomass of Mott was 3.5, 4.4 and 5.9 times greater than Cenchrus under 1, 5 and 10 percent slope gradients respectively.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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