黄河三角洲盐碱地不同树种耐盐性形态指标的比较研究  

Comparative Reasearch on Several Salt-Tolerance-Related Morphological Indicators of Different Tree Species in Saline Lands in Yellow River Delta

作　　者：姜福成 王月海[2] 囤兴建[2] 许景伟[2] 佀庆柱 

机构地区：[1]济南军区黄河三角洲生产基地,山东东营257231 [2]山东省林业科学研究院,山东济南250014

出　　处：《水土保持通报》2015年第6期202-206,共5页Bulletin of Soil and Water Conservation

基　　金：国家科技支撑计划项目"盐碱地改良沿海防护林体系研究与示范"(2009BADB2B05);国家引智项目(Y20143700003);山东省引智项目(TG20143732)

摘　　要：[目的]研究不同树种的耐盐性形态指标,为黄河三角洲中度盐碱地造林树种选择提供重要理论依据和参考。[方法]对中度盐碱地上营造的试验林中的12个树种在保存率、生长势和盐害程度(盐害指数)等几个耐盐性形态指标上进行比较分析,确定各树种的相对耐盐力。[结果](1)不同树种的保存率差异较大,最低保存率为19.3%,最高保存率为96.7%;(2)除美国红叶白蜡和沙柳2个树种外,其余10个树种的生长表现(生长势和盐害程度)与保存率变化一致,即保存率高的树种,其生长表现亦好(生长旺盛、叶片受到的盐害程度小);(3)综合几个耐盐性指标对12个树种的聚类分析,其耐盐力可划归为强、中、一般3类。[结论]通过中度盐碱地不同树种耐盐性形态指标的评价,客观真实地反映了不同树种耐盐能力的强弱。[Objective]Several morphological indicators of salt tolerance of different tree species were compared to provide both theoretical support and practical guidelines for choosing afforestation tree species for moderate saline-alkali lands in the Yellow River delta.[Methods]Twelve species had been planted in a moderate saline-alkali land for the comparison of salt-tolerance with indicators of survival rate,growth potential and the degree of salt（salt injury index）.[Results]（1）Survival rates of the 12 tree species were significantly different,ranging from 19.3%to 96.7%.（2）Except of American red fraxinus and Dendranthema morifolium,growth performances（growth potential and salt injury degree）of each of the remaining ten species were positively correlated with their survival rate,i.e.,better growth performance reflecting higher survival rate.（3）Cluster analysis based on survival rate,growth potential,and salt injury index categorised the 12 tree species into three classes according to their salt tolerance,namely,strong,medium and general.[Conclusion]Through the comparison of salt-tolerance related indices of different species in a moderate saline-alkali land,the salt tolerance rank of these tree species was objectively recognized.

关 键 词：黄河三角洲盐碱地 树种耐盐性 保存率 生长势 盐害指数 

分 类 号：S718.42[农业科学—林学]