我国西北大部处于沙漠化的干旱地区和水土流失的半干旱地区,具有特殊的自然条件和生态环境,历来为世界研究者所瞩目;本区为我国最大的低产区,从其自然特点和生产需要出发,开展植物水分研究,在理论和生产实践上都有重要的意义。当前在我国西北地区进行植物水分研究,应当以生理生态为主,从迫切的生产问题入手,逐步深入。现在西北各省都已开始重视旱作农业,这是本地区农业发展战略的一次重要 Most of northwestern China is located in arid desertification areas and semi-arid areas with soil erosion, with special natural conditions and ecological environment, which has always been the focus of world researchers. This area is the largest low-yielding area in China. From its natural features and production Need to proceed, to carry out plant moisture research, both in theory and production practice have important significance. At present, the study of plant water in the northwestern region of China should be based on the ecology and ecology, starting with the urgent production problems and gradually deepening. Now all provinces in the northwest have begun to attach importance to dry farming, which is an important strategy for agricultural development in the region