Runoff efficiency and soil water comparison of plastic-covered ridge and ridge with compacted soil at different rainfall harvesting stages in semiarid area
Abstract:A micro-water harvesting (MWH) system was designed to increase water availability to crops for improving and stabilizing agricultural production in the semiarid Loess of northwest China.The system was built by shaping the soil surface with alternative ridges and furrows along contour. The study was conducted at Yuzhong division of Lanzhou University during April and August 2002. There were three ridge:furrow ratios (60:60 cm, 45:60 cm and 30:60 cm) and two ridge cover treatments (ridge covered with plastic ...