| 长江源区高寒沼泽草甸植物对增温的生理响应及适应性评价 |
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| 引用本文： | 冯月,白炜,张景然,房佳辰,曾红丽.长江源区高寒沼泽草甸植物对增温的生理响应及适应性评价[J].草地学报,2022,30(4):790-800. |
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| 作者姓名： | 冯月 白炜 张景然 房佳辰 曾红丽 |
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| 作者单位： | 兰州交通大学环境与市政工程学院, 甘肃 兰州 730070 |
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| 基金项目： | 国家自然科学基金;甘肃省自然科学基金 |
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| 摘 要： | 为明确高寒沼泽草甸主要植物对气温升高的生理响应模式及差异,本研究以风火山地区高寒沼泽草甸矮嵩草(Kobresia humili)、藏嵩草(Kobresia tibetica)及青藏苔草(Carex moorcroftii)为研究对象,分析增温处理下(T1:增温1.5～2.5℃;T2:增温3～5℃)3种植物生理响应差异,...
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| 关 键 词： | 高寒沼泽草甸 增温 矮嵩草 藏嵩草 青藏苔草 生理指标 |
| 收稿时间： | 2021-08-31 |
Evaluation of Physiological Response and Adaptability of Plants in Alpine Swamp Meadows in the Headwaters Region of the Yangtze River to Warming |
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| FENG Yue,BAI Wei,ZHANG Jing-ran,FANG Jia-chen,ZENG Hong-li.Evaluation of Physiological Response and Adaptability of Plants in Alpine Swamp Meadows in the Headwaters Region of the Yangtze River to Warming[J].Acta Agrestia Sinica,2022,30(4):790-800. |
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| Authors: | FENG Yue BAI Wei ZHANG Jing-ran FANG Jia-chen ZENG Hong-li |
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| Institution: | Lanzhou Jiaotong University, School of Environmental and Municipal Engineering, Lanzhou, Gansu Province 730070, China |
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| Abstract: | In order to clarify the physiological response patterns and differences of the main plants in alpine swamp meadow to warming,we used Kobresia humili,Kobresia tibetica,and Carex moorcroftii in the alpine swamp meadow in Fenghuoshan area as the research objects in the study.The physiological responses of three plants under different warming treatments (T1:warming 1.5~2.5℃;T2:warming 3~5℃) were analyzed by using the method combined principal component analysis and subordinate function value.The adaptability of the three plants to warming was evaluated from the perspective of plant physiology.The results showed that:with increasing temperature,the content of soluble proteins,carotenoids and proline of the three plants was consistent.Compared with the other two plants,the physiological changes of Kobresia tibetica showed a certain degree of lag.Combined with subordinate function value,the comments of the adaptability of the three plants to warming was changed as Carex moorcroftii > Kobresia humili > Kobresia tibetica.In conclusion,warming had a series of effects on photosynthetic pigments,osmoregulation substances,the content of malondialdehyde and antioxidant enzyme activities of the three plants.At the same time,according to the three plants'warming adaptability ranking at the physiological response level,Carex moorcroftii shows stronger adaptability in the process of simulating warming. |
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| Keywords: | Alpine swamp meadow Warming Kobresia humili Kobresia tibetica Carex moorcroftii Physiological index |
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