【摘要】 本文研究了8种沙拐枣造林后的成活生长状况、抗旱性水分生理指标及抗风蚀性能。应用主成分分析法对8种沙拐枣的当年成活率、第4年保存率、水势、束缚水/自由水、细胞液浓度、抗脱水力、受风蚀致死率、相对含水量等8项指标进行了综合分析,得出8种沙拐枣抗干旱、抗风蚀性强弱的顺序为:红皮沙拐枣>东疆沙拐枣>密刺沙拐枣>白皮沙拐枣>泡果沙拐枣>头状沙拐枣>乔木状沙拐枣>网状沙拐枣。从中筛选出红皮沙拐枣、东疆沙拐枣、密刺沙拐枣三种抗逆性较强的种。更多还原

【Abstract】 We experiment upon 8 Calligonum species. Besides growth status andperformance to resist wind erosion, 8 water physiological indices whichare related to drought resistance are selected, they are survival rates at thefirst year and the fourth year, water potential, bound/free water ratio,cytolymph density, dehydration resistance, death rate caused by wind eros-ion, and relative water content. Through comparision, the final order ofthe ability to fight drought and wind-erosion is as follow, from high tolow: C. rubicundum, C. klementzii, C. densum, C. leucocladum, C. junceum,C. caput-medusae, C. arborescens, and C. cancellatum. Finally, C. rubicundum,C. klemen’zii and C. densum are selected as best species to resist droughtand wind erosion.更多还原