Abstract

Irrigated water use index system and its application in agricultural water management

Author(s): Wei Huaibin, Zhang Ruimei

In order to increase efficiency of irrigation water use and alleviate conflict between water demand and supply, this paper studies the composition of irrigated water index system from mechanism, design, application and management level, analyzes the relationship among cropwater requirements, irrigated quota and irrigated water quota, and its corresponding influence factors, then puts forward some agricultural water management ideas and measures that based on the irrigated water quota management and ET control management. The case study in the end shows that water-saving irrigation scheme based on ET monitoring control has obvious utility to agricultural water production efficiency.