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。
We experiment upon 8 Calligonum species. Besides growth status and
performance to resist wind erosion, 8 water physiological indices which
are related to drought resistance are selected, they are survival rates at the
first 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 of
the ability to fight drought and wind-erosion is as follow, from high to
low: 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 drought
and wind erosion.
出处
《干旱区资源与环境》
CSCD
1992年第4期55-62,共8页
Journal of Arid Land Resources and Environment
基金
国家"七五"科技攻关专题75-03-01-05
关键词
造林
抗旱性
风蚀
试验
Calligonum
Drought Resistance
Wind-erosion Resistance
