干旱区生态环境知识资源中心(Arid): 岷江柏与尾叶桉幼苗耗水日变化特性研究

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	岷江柏与尾叶桉幼苗耗水日变化特性研究
其他题名	Study on Diurnal Fluctuation of Water Consumption in Seedlings of Cupressus chengiana S.Y,Hu and Eucalyptus urophylla S.T.Blake
	额冬梅; 宫渊波; 张亚军
来源期刊	安徽农业科学
ISSN	0517-6611
出版年	2008
卷号	36 期号:17 页码:7107-7110
中文摘要	[目的]比较2种耐旱植物日耗水变化,为干旱地区推广试种提供一定的理论依据.[方法]在不同水分梯度下,测定了岷江柏幼苗和尾叶按幼苗的日蒸腾强度、土壤湿度日变化、叶片相对含水量、水分饱和亏缺、饱和叶片失水速率等指标.以研究岷江柏、尾叶桉的相对抗旱性.[结果]不同水分梯度下岷江柏和尾叶桉的日蒸腾强度呈"双峰"曲线;随着土壤水分的增大,岷江柏和尾叶桉的日蒸腾强度呈增大趋势,叶片绝对含水量和相对含水量呈增大趋势.饱和叶片的失水量呈下降趋势;在同一水分梯度下,尾叶按的日蒸腾强度、饱和叶片失水量均比岷江柏高.[结论]岷江柏比尾叶桉具有更强的保水性和抗旱性,更适合在干旱环境下种植.
英文摘要	[Objective] By comparing the diurnal fluctuation of water consumption of two drought-tolerant plants,theoretical basis was offered for these plants growing in the arid areas.[Method] Indices of Cupressus chengiana S.Y.Hu and Eucalyptus urophylla S.T.Blake were detected under different water gradients,including transpiration intensity of diurnal fluctuation,soil moisture of diurnal fluctuation,relative water content of leaves,water deficit and water loss rate of saturated leaves,in order to study the relative drought resistance of Cupressus chengiana S.Y.Hu and Eucalyptus urophylla S.T.Blake.[Result] Transpiration intensities of diurnal fluctuation of Cupressus chengiana S.Y.Hu and Eucalyptus urophylla S.T.Blake at different moisture gradient demonstrated to be bimodal curves mathematically.As soil moisture increasing,transpiration intensity on diurnal fluctuation tended to swell,so did the absolute water content and the relative water content of leaves,but water loss of saturated leaves decreased.And under the same moisture gradient,transpiration intensity on diurnal fluctuation of Eucalyptus urophylla S.T.Blake was higher than that of Cupressus chengiana S.Y.Hu,so was the water loss of saturated leaves.[Conclusion] It could be concluded that Cupressus chengiana S.Y.Hu was more suitable to be planted in drought areas than Eucalyptus urophylla S.T.Blake,as it had stronger moisture retention and greater drought resistance.
中文关键词	岷江柏 ; 尾叶桉 ; 耗水日变化
英文关键词	Cupressus chengiana S.Y.Hu Eucalyptus urophylla S.T.Blake Diurnal fluctuation of water consumption
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Forestry
WOS研究方向	Forestry
CSCD记录号	CSCD:3334365
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221959
作者单位	额冬梅, 四川农业大学, 四川省生态林业工程省级重点实验室, 雅安, 四川 625014, 中国.; 宫渊波, 四川农业大学, 四川省生态林业工程省级重点实验室, 雅安, 四川 625014, 中国.; 张亚军, 四川农业大学, 四川省生态林业工程省级重点实验室, 雅安, 四川 625014, 中国.
推荐引用方式 GB/T 7714	额冬梅,宫渊波,张亚军. 岷江柏与尾叶桉幼苗耗水日变化特性研究[J],2008,36(17):7107-7110.
APA	额冬梅,宫渊波,&张亚军.(2008).岷江柏与尾叶桉幼苗耗水日变化特性研究.安徽农业科学,36(17),7107-7110.
MLA	额冬梅,et al."岷江柏与尾叶桉幼苗耗水日变化特性研究".安徽农业科学 36.17(2008):7107-7110.