| 融雪剂对大叶黄杨生长和生理特性的影响 |
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| 引用本文： | 徐佳佳,张建军,茹豪,王清玉,李慧敏,李民义.融雪剂对大叶黄杨生长和生理特性的影响[J].生态环境,2011(Z2). |
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| 作者姓名： | 徐佳佳 张建军 茹豪 王清玉 李慧敏 李民义 |
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| 作者单位： | 北京林业大学水土保持学院; |
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| 基金项目： | 防海岸带侵蚀沿海泥质海岸防护林体系研究与示范(2009BADB2B0602) |
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| 摘 要： | 为了研究融雪剂对道路绿化植物的影响,以大叶黄杨(Euonymus japonicus Thunb)为研究材料,研究了其在3种融雪剂(JLR-01、LBR-4、芦笛一号)不同施用量影响下的生长量和生理特性。结果表明:随着融雪剂LBR-4和芦笛一号的施用量的增大,大叶黄杨叶片的相对生长量和株高相对生长量、光合速率(Pn)、水分利用效率(WUE)、蒸腾速率(Tr)和气孔导度(Gs)随之减小,而低施用量的融雪剂JLR-01对大叶黄杨生长量、Pn、WUE和Tr有促进作用。随着融雪剂作用时间的延长,3种融雪剂的Pn和WUE也随之减小,Tr则是先减小后有所增大。当融雪剂施用量较小和胁迫时间较短时,Pn下降是因为气孔关闭;而当施用量较大和胁迫时间较长时,Pn下降是因为叶肉同化能力下降;3种融雪剂对大叶黄杨的胁迫程度由大到小的次序为:芦笛一号>LBR-4>JLR-01;大叶黄杨对3种融雪剂施用量的忍耐阈值在80 g.m-2左右,大叶黄杨对施用LBR-4和芦笛一号的耐受时间阈值大约为3周,对施用JLR-01的耐受时间阈值为3周以上。
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| 关 键 词： | 融雪剂 大叶黄杨 生长特性 生理特性 |
Effects of snow melting agent on growth and physiological characteristics of Euonymus japonzcus Thunb |
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| XU Jiajia,ZHANG Jianjun,RU Hao,WANG Qingyu,LI Huimin,LI Minyi College of Soil , Water Conservation,Beijing Forestry University,Beijing ,China.Effects of snow melting agent on growth and physiological characteristics of Euonymus japonzcus Thunb[J].Ecology and Environmnet,2011(Z2). |
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| Authors: | XU Jiajia ZHANG Jianjun RU Hao WANG Qingyu LI Huimin LI Minyi College of Soil Water Conservation Beijing Forestry University Beijing China |
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| Institution: | XU Jiajia,ZHANG Jianjun,RU Hao,WANG Qingyu,LI Huimin,LI Minyi College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China |
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| Abstract: | To explore the influence of snow melting agent on road-side greening vegetation,Euonymus japonzcus Thunb was adopted as the research material in this study.The growth and physiological features of Euonymus japonzcus Thunb with the applica-tions of three snow melting agents(JLR-01,LBR-4 and Reed No.1) at different application amounts were studied.The results showed that,as the application amount of LBR-4 and Reed No.1 increased,the relative growth of the leaves of Euonymus japonzcus Thunb,the relative growth... |
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| Keywords: | snow melting agent Euonymus japonzcus Thunb growth features physiological features |
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