摘要
根据土壤-作物-大气连续体(SPAC)理论,水分在连续体内的运动主要由水势差决定。准确测定农田水势对于实施精准灌溉十分重要。文章介绍了基于农作物微环境信息采集与处理,通过混合软测量模型整体估算农田水势的新方法。
In accordance with the theory of Soil-Plant-Atmosphere Continuum （SPAC） , the motion of moisture in the continuum is decided chiefly by the water potential difference.For the implementation of precision irrigation （ PI ） , it is most important to measure precisly farmland water potential.A new method estimating farmland, water potential based on information collection and procession of tiny environment for farmland crops is introduced.
出处
《天津工程师范学院学报》
2007年第4期1-4,共4页
Journal of Tianji University of Technology and Education
基金
国家自然科学基金资助项目(60772167)
天津工程师范学院科研基金项目(KJ2006002)
关键词
精准灌溉
农田水势
软测量
作物微环境
混合模型
precision irrigation （ PI ）
farmland water potential
soft-sensing
tiny environment of farm crops
hybrid model
