“…Water which does not infiltrate into the soil surface will flow as surface runoff causing soil erosion (Bradford et al, 1987;Remley & Bradford, 1989). Branson et al (1966) reported that soil moisture storage increased by using contour furrowing at 1}1)5 m intervals, and the yield of perennial grasses increased to about 560 kg ha\. In the desert grasslands of southern Arizona, furrowing produced 2)5 times more grass than the adjacent untreated area, while soil moisture storage was 66 mm in the furrowed area compared with only 30 mm in untreated soil (Brown & Everson, 1952).…”