| 黑河中游荒漠绿洲过渡带多枝柽柳对地下水位变化的生理生态响应与适应 |
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| 引用本文： | 张佩,袁国富,庄伟,薛沙沙.黑河中游荒漠绿洲过渡带多枝柽柳对地下水位变化的生理生态响应与适应[J].生态学报,2011,31(22):6677-6687. |
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| 作者姓名： | 张佩 袁国富 庄伟 薛沙沙 |
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| 作者单位： | 1. 中国科学院地理科学与资源研究所生态网络观测与模拟重点实验室,北京100101;中国科学院研究生院,北京100049
2. 中国科学院地理科学与资源研究所生态网络观测与模拟重点实验室,北京,100101 |
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| 基金项目： | 国家重点基础研究发展规划项目(973项目)(2009CB421305;2010CB951002) |
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| 摘 要： | 以黑河中游荒漠绿洲过渡带主要建群种多枝柽柳成年体为研究对象,对野外不同地下水埋深处柽柳叶片生理生态特性进行观测和分析,评价分析多枝柽柳对地下水埋深差异和地下水位季节变化的响应过程和适应机制.结果显示:在相似大气环境条件下,不同地下水埋深之间,多枝柽柳叶片的生理生态指标没有明显差异,但对于地下水位的季节波动,则表现出较为明显的变化和响应；柽柳通过气孔的调节,在更深地下水埋深下,水分条件更差时,保持了稳定的气孔导度和较高的叶片胞间二氧化碳浓度,从而维持相对稳定的碳同化能力及较高水分利用效率,表现出较好的适应能力；在不同地下水埋深下,叶片生理生态指标随地下水位下降的响应特征呈现出明显差异,这种差异暗示了黑河中游荒漠绿洲过渡带多枝柽柳的适宜地下水位在3 m左右.
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| 关 键 词： | 多枝柽柳 荒漠绿洲过渡带 地下水埋深 光合速率 蒸腾速率 气孔导度 |
| 收稿时间： | 2011/1/11 0:00:00 |
| 修稿时间： | 2011/7/19 0:00:00 |
Ecophysiological responses and adaptation of Tamarix ramosissima to changes in groundwater depth in the Heihe river basin |
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| ZHANG Pei,YUAN Guofu,ZHUANG Wei and XUE Shasha.Ecophysiological responses and adaptation of Tamarix ramosissima to changes in groundwater depth in the Heihe river basin[J].Acta Ecologica Sinica,2011,31(22):6677-6687. |
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| Authors: | ZHANG Pei YUAN Guofu ZHUANG Wei and XUE Shasha |
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| Institution: | Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | |
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| Keywords: | Tamarix ramosissima desert-oasis ecotone groundwater depth photosynthesis transpiration stomatal conductance |
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