温度升高对林线交错带西川韭与草玉梅生殖物候与生长的影响

生态学杂志

温度升高对林线交错带西川韭与草玉梅生殖物候与生长的影响

李小艳^1,2;张远彬¹;潘开文¹;孙成仁²;王开运³;王进闯¹;亓东明²

¹中国科学院成都生物研究所，成都 610041; ²西华师范大学，四川南充 637002;³华东师范大学上海市城市化生态过程和生态恢复重点实验室，上海 200062

收稿日期:2008-04-17 修回日期:1900-01-01 出版日期:2009-01-10 发布日期:2009-01-10

Effects of elevated temperature on reproductive phenology and growth of Allium xichuanense and Anemone rivularis in timberline ecotone.

LI Xiao-yan^1,2;ZHANG Yuan-bin¹;PAN Kai-wen¹;SUN Cheng-ren²;WANG Kai-yun³;Wang Jin-chuang¹;QI Dong-ming²

¹Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; ²College of Life Science, China West Normal University, Nanchong 637002, Sichuan, China;³Shanghai Key Laboratory of Urbanization Processes and Ecological Restoration, East China Normal University, Shanghai 200062, China

Received:2008-04-17 Revised:1900-01-01 Online:2009-01-10 Published:2009-01-10

摘要/Abstract

摘要： 采用开顶式同化箱(open-top chamber, OTC)，研究了川西亚高山林线交错带2种草本植物西川韭（Alllium xichuanense）与草玉梅(Anemone rivularis)生殖物候与生长对模拟增温的短期响应。结果表明：温度升高使西川韭与草玉梅的始花时间、最大开花日和抽茎时间均明显提前;同时，增温延长了2物种的花期，提高了二者的开花率;增温促进了草玉梅的果物候;增温加快了西川韭与草玉梅的生长，而对生长末期株高和各器官生物量却无显著影响。反映了西川韭与草玉梅生殖物候与生长对实验增温的响应具有较强可塑性，在未来气候变暖的情况下，能够较强地适应变暖环境。

关键词: 豆链格孢菌, 白车轴草, 生理代谢, 酶活性

Abstract: By using open-top chamber (OTC), the short-term effects of simulated warming on the reproductive phenology and growth of two perennial herbaceous species Allium xichuanense and Anemone rivularis in subalpine timberline ecotone of Western Sichuan were investigated. The results showed that warming made the dates of initial flowering, maximum flowering, and bud- shooting advanced obviously, and prolonged the duration of flowering and increased the blossoming rate. Warming also advanced the fruit phenology of A. rivularis and promoted the growth of A. xichuanense and A.rivularis. However, no significant effects were observed on the plant height and organ biomass by the end of growth season. It is suggested that A.xichuanense and A. rivularis had stronger plasticity in response to simulated warming, and could easily adapt to the intending global warming.

Key words: Alternaria azukiae, Trifolium repens, Physiological metabolism, Enzyme activity

李小艳;张远彬;潘开文;孙成仁;王开运;王进闯;亓东明. 温度升高对林线交错带西川韭与草玉梅生殖物候与生长的影响[J]. 生态学杂志.

LI Xiao-yan^1,2;ZHANG Yuan-bin¹;PAN Kai-wen¹;SUN Cheng-ren²;WANG Kai-yun³;Wang Jin-chuang¹;QI Dong-ming². Effects of elevated temperature on reproductive phenology and growth of Allium xichuanense and Anemone rivularis in timberline ecotone.[J]. cje.

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