摘要
植物水分生理指标,是判别植物抗旱性的重要依据。为选择适于黄土高原干旱地区生长的能源林树种,对不同能源植物体内水分状况及其抗旱能力进行了研究。研究结果表明,耐旱能源植物具有水势低、自由水与束缚水含量比值小,蒸腾强度低以及叶片持水力强等特征,其中沙棘、沙柳、山杏、沙枣、刺槐、柽柳和沙打旺具有较强的抗旱能力,是适应性较强的能源林植物。
The water physiological index of plant is an important basis that is used to distinguish the drought resistance of plants. To select the species of energy-forest tree which can grow well in dry region of loess plateau, we studied water status and drought resistance of different energy plants. The results indicates that the characteristics of drought-forest plants are as follows,lower water potential, minor ratio of free water to bound water, lower transpiration rate and better leaf water holding power. Plants with better drought resistance, such as Hippophae rhamnoides Linn., Salix monglica Siuzov., Armeniaca sibrica Linn., Elaeagnus angustifolia Linn., Robinia pseudoacacia Linn.,Tamarix chinensis Lour., Astragalus adsurgens Pall., etc., are the energy-forest plants with strong adaptability in dry region.
出处
《水土保持学报》
CSCD
北大核心
1989年第3期91-96,共6页
Journal of Soil and Water Conservation
