摘要： 遵循资源产出量最大及资源投入量最小原则,充分考虑作物生产中气候资源的占有量及气候资源产出量,构造了西北旱作区农作物气候资源利用效率的定量评价模式,并以甘肃天水市为例,根据其农业生产现状,评价了不同种植方式下的气候资源利用效率。结果表明:套种气候资源利用效率最高,单作及复种较低。

关键词: 西北旱作区, 种植方式, 气候资源, 利用效率, 评价

Abstract: Following the principle of largest output and the smallest input of resource , the amount of climatic resourcewhich crops holding during their growth period and crop′s output had been considered and the model for evaluating climaticresource use efficiency under in crops growing had been provided .Based on the agriculture production status ofTianshui ,Gansu , the evaluation of climatic resource use efficiency under different cropping patterns had been made .Theresults showed that the climatic resource use efficiency was the highest under interplant while they were lower undermonoculture and multiple cropping.

Key words: Dry area northwest, Cropping patterns, Climatic resource, Use efficiency, Evaluation

中图分类号: 

• S162