OPTIMIZATION OF CROP IRRIGATION STRATEGY UNDER A STOCHASTIC WEATHER REGIME - SIMULATION STUDY

被引：14
|
作者：
AHMED, J
VANBAVEL, CHM
HILER, EA
机构：
[1] TEXAS A&M UNIV, DEPT SOIL & CROP SCI, COLLEGE STN, TX 77843 USA
[2] TEXAS A&M UNIV, DEPT AGR ENGN, COLLEGE STN, TX 77843 USA
来源：
WATER RESOURCES RESEARCH | 1976年 / 12卷 / 06期
关键词：
D O I：
10.1029/WR012i006p01241
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A dynamic simulation model of the soil-water-atmosphere-plant system is developed as a tool for optimal irrigation decision making under a stochastic weather regime and when water supplies are limited. Crop yield, foliage development, plant water deficits and irrigation decisions were treated as interdependent processes. Yield susceptibility of the crop to water deficit is a function of crop growth stage. The stomatal regulation of transpiration by the crop has been taken into account also. The model is a closed loop dynamic system, in which past irrigation decisions and weather conditions affect the current as well as the future response of the crop system and, consequently, the future irrigation decisions and the overall water use efficiency. The specific illustration studied pertains to grain sorghum grown under weather conditions typical for south central Texas [USA].
引用
收藏
页码：1241 / 1247
页数：7
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