摘要
根据玉米地和对照地的平行观测资料，分析了玉米发育过程中的根系吸水情况、作物耗水特点以及水分的供需矛盾。提出了玉米生长发育和产量形成过程中的需水关键期概念，并引入了作物耗水特性系数，客观定量地反映玉米耗水的生理生态特性。
Based on observations of a corn field and an uncropped plot in Jingyang county, Shaanxi, study has been done of root water uptake and water supply consumption pattern in the crop growth season, whereby proposed is a concept of a critical water period during its development and yield formation, into which a characteristic consumption coefficient is introduced, whereby objectively and quantitatively revealed is the consumption related physiological ecological character of summer sowed corn.
出处
《南京气象学院学报》
CSCD
1998年第1期125-129,共5页
Journal of Nanjing Institute of Meteorology
关键词
农田蒸散
土壤吸力
零通量面
玉米
耗水规律
field evapotranspiration, soil tension, zero flux plane, available water storage
