Effect of different engineering soil conservation measures on water and sediment yield and farm productivity
Effect of different engineering soil conservation measures on water and sediment yield and farm productivity
Bashir Hussain Shah
ABSTRACT
An experiment was laid out at Pabbi forest Kharian to find out the suitable soil conservation measure for soil and water conservation enhancement of farm productivity. Four catchments were treated one each with strip cropping, conservation benches with planting of trees on slopes, conservation benches with natural grass on slopes and bench terraces. On the risers of bench terraces and conservation benches ipil ipil was planted. In strip cropping Eucalyptus camaldulensis, Acacia modesta and L. leucocephalla were planted in 3 rows at 1 x 1m spacing along the contour. At the outlet of each catchment, detension dams with circular splitter and siltation tanks for monitoring water and sediment yield were constructed. The water and sediment yield data showed that there was no surface runoff and sediment yield from the catchment treated with bench terraces, while it was maximum from the catchment treated with only strip cropping. There was no significant difference in water and sediment yield from the other two catchments treated with conservation benches with trees and grasses on slopes respectively. The crop, forage, and the biomass production of Ipil ipil data showed that maximum farm productivity is from the catchment treated with bench terraces. Ipil ipil on the risers of the terraces conservation benches ipil ipil was planted. In strip cropping Eucalyptus camaldulensis, Acacia modesta and L. leucocephalla were planted in 3 rows at 1 x 1 m spacing along the contour.
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June 1994
Vol. 44, Iss. 2
