摘要
对"利用茎直径变化监测作物水分"的研究进行了综述。自20世纪60年代开始,基于茎直径变化的作物水分状况监测指标体系研究经历了两个阶段,即茎直径变化与作物水势关系的定性研究阶段;考虑环境变化和植株正常生长的茎直径变化—作物水势之间动态量化阶段。此方法通过对作物体内水分的动态监测,并与计算机应用相配合,可以用于温室和大田条件下指导适时灌溉。
The research progress on crop water status monitoring based on stem diameter variation was reviewed in this paper. The research on crop water status monitoring based on stem diameter variation had experienced two stages since the 1960s. At the first stage, a qualitative approach was used to describe the relationship between stem diameter variation and crop water potential. The dynamic analysis was developed to quantify the stem diameter variation with crop water potential taking account of environmental and plant growth conditions at the second stage. The results on crop water monitoring via computer system could be used to guide the irrigation timing under the field and greenhouse conditions.
出处
《中国农业气象》
CSCD
2004年第4期11-13,17,共4页
Chinese Journal of Agrometeorology
基金
"863"重大专项(2002AA2Z4071-03)
"863"专项(2001AA242081)资助
关键词
茎直径变化
作物水分状况
监测
发展趋势
Stem diameter
Crop water status
Water potential
Irrigation timing
