Predicting soil erosion using a physical model /
Tirtohadisurjo, Wipartono
Predicting soil erosion using a physical model / Wipartono Tirtohadisurjo. - Los Baños, Laguna : Cavite State University- Main Campus, 1985. - 83 pages : illustrations ; 28 cm.
Thesis (M.S. - - Soil Science) University of the Philippines, College, Laguna.
Includes bibliographical references.
TIRTOHADISURJO, WIPARTONO, University of the Philippines at Los Banos, September, 1985. Predicting Soil Erosion Using a Physical Model. Major Professor: Dr. Eduardo P. Paningbatan, Jr.
An experiment was conducted using rainwater and soil trough to critically study the process of soil erosion and to validate the physical model of predicting soil erosion proposed by Rose, Sander and Barry (1983). The treatments involved two soil types, Luisiana clay _type (orthoxic Tropudult) and Lipa clay loam (typic Tropudalf), three levels of rainfall intensity (7.85, 10.95 and 12.95 em/hr), three) levels of slope steepness (3, 8 and 15 percent) and five levels of mulch cover (0, 25, 50, 75 and 100 percent, cover). surface water flux per unit strip width of plot (a); sediment concentration (Cc) and sediment flux per unit strip width of plot (qg) increased with rainfall intensity and slope
We greatly decreased as the percentage cover of mulch increased.
The sediment concentration that resulted from a given rainfall intensity and slope was higher in Lipa than in the Tuisiana soil series on bare soil surfaces of Lipa and Luisiana series, the efficiency of entrainment (n) increased with rainfall intensity and slope while it decreased exponentially as the percentage much cover increased.
The physical model yielded good prediction estimates of sediment concentration. In both soils, predicted and observed sediment concentrations generated from different combinations. Bad rainfall intensity and mulch cover gave about 1:1 relationship with correlation coefficients (r) of not less than 0.98.
Soil erosion
631.45 / T51 1985
Predicting soil erosion using a physical model / Wipartono Tirtohadisurjo. - Los Baños, Laguna : Cavite State University- Main Campus, 1985. - 83 pages : illustrations ; 28 cm.
Thesis (M.S. - - Soil Science) University of the Philippines, College, Laguna.
Includes bibliographical references.
TIRTOHADISURJO, WIPARTONO, University of the Philippines at Los Banos, September, 1985. Predicting Soil Erosion Using a Physical Model. Major Professor: Dr. Eduardo P. Paningbatan, Jr.
An experiment was conducted using rainwater and soil trough to critically study the process of soil erosion and to validate the physical model of predicting soil erosion proposed by Rose, Sander and Barry (1983). The treatments involved two soil types, Luisiana clay _type (orthoxic Tropudult) and Lipa clay loam (typic Tropudalf), three levels of rainfall intensity (7.85, 10.95 and 12.95 em/hr), three) levels of slope steepness (3, 8 and 15 percent) and five levels of mulch cover (0, 25, 50, 75 and 100 percent, cover). surface water flux per unit strip width of plot (a); sediment concentration (Cc) and sediment flux per unit strip width of plot (qg) increased with rainfall intensity and slope
We greatly decreased as the percentage cover of mulch increased.
The sediment concentration that resulted from a given rainfall intensity and slope was higher in Lipa than in the Tuisiana soil series on bare soil surfaces of Lipa and Luisiana series, the efficiency of entrainment (n) increased with rainfall intensity and slope while it decreased exponentially as the percentage much cover increased.
The physical model yielded good prediction estimates of sediment concentration. In both soils, predicted and observed sediment concentrations generated from different combinations. Bad rainfall intensity and mulch cover gave about 1:1 relationship with correlation coefficients (r) of not less than 0.98.
Soil erosion
631.45 / T51 1985