SIMULATION ON WATER AND HEAT DYNAMICS IN SOIL-PLANT-ATMOSPHERE CONTINUUM Advances in the Studies on Water Uptake by Plant Roots Applications of nuclear magnetic resonance in the study of soilplantatmosphere continuum. Research progress on regulation mechanism for the process of water transport in plants DISTRIBUTION OF HYDRAULIC RESISTANCE IN SOIL-PLANT-ATMOSPHERE CONTINUUM 陕西渭北旱源土壤—植物—大气连续作中水分运转规律的研究──Ⅲ.生态和生理环境对叶片气孔阻力的影响 陕西渭北旱塬土壤-植物-大气连续体中水分运转规律的研究──Ⅰ.生态环境对植物叶温的影响 陕西渭北旱源土壤—植物—大气连续体中水分运转规律的研究──Ⅱ.生态和生理环境对植物叶水势的影响 Transfer of mercury through soil-plant-atmosphere-human continuum and influence factors