On the Effective Rainfall Collection Utilization Technology in Mountainous Orchard on Gullied Loess Rolling Hills

摘要

Surveying data of rainfall collection and water - saving utilization in mountainous orchard of Gullied Loess Rolling Hills shows that storing runoff of beyond percolation by forming orchard land into runoff collection plot of shape, can reduce soil erosion, and can meet water requirement of fruit trees in dry season as well. Covering the land with plastic film or straws or living vegetation can effectively reduce evaporation of the land, and regulate temperature top soil, and can increase organic matter in soil, and result in making use of rainfall effectively. This technique has features of simple, practicable and economical.