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通过对内蒙古伊盟达拉特旗境内的柠条锦鸡儿，沙柳人工林的土壤水分、叶水势、蒸腾速率及其环境因子进行了定期观测，结果表明：柠条锦鸡儿具有较强的水分调节能力，当土壤、叶片间的水分关系紧张系数低于１．０后，蒸腾速率降低６０％以上，以减少水分输出达到维持生命渡过干旱期的目的，而一旦土壤水分供应充足时，即可迅速生长。密度为１９９５株／ｈｍ￣２的沙柳林没有出现土壤水分亏缺现象，其水分关系紧张系数均较大，整个生长季，沙柳林生长正常，由于土壤水分胁迫造成土壤——植物水分关系的紧张程度可采用来评价。
The soil moisture, leaf water potential, transpiration rate and environmental factors of Caragana korshinskii and Salix psammophila in Inner Mongolia were detected regularly. The results showed that Caragana korshinskii had stronger water content When the soil moisture, the relationship between the leaf tension coefficient of water is less than 1.0, the transpiration rate is reduced by more than 60%, in order to reduce the water output to achieve the purpose of maintaining life through the drought period, and once the supply of soil moisture sufficient Can grow rapidly. The density of 1995 plants / hm ~ 2 Shaliu no soil water deficit, the water stress coefficient are larger, throughout the growing season, salix in normal growth due to soil water stress caused by soil - plant water relationship The tension can be used to evaluate.