摘要
作物的耗水量包括土壤棵间蒸发、植株蒸腾及组成作物自身组织所需的水量。其中,棵间蒸发在作物整个生育期占总耗水的比例较大,且是无效耗水。研究棵间蒸发对于农业节水有着重要的意义。本文在以往相关研究的基础上,详细论述了国内外棵间蒸发测定研究状况,分析了当前棵间蒸发的观测方法(主要是器测法)及其应用情况,探讨了影响棵间蒸发大小的若干因素。
The crop water consumption includes the soil evaporation between plants, plant transpiration and the water requirement of crop tissues. Thereinto, the soft evaporation between plants in the whole growth period takes the largest proportion and is the inef fective water consumption. So research on the soil evaporation between plants has important significance for the agricultural water saving. Based on the past relevant research achievement, this paper expounds the situation of research on the soil evaporation be tween plants, analyzes the main observing and measuring methods, mainly instrument-measurement method, and their application, and discussed the influencing factors of the soil evaporation between plants.
出处
《节水灌溉》
北大核心
2014年第4期79-82,共4页
Water Saving Irrigation
基金
国家公益性行业(农业)科研专项(201303125)
