| 干旱胁迫对科尔沁沙地南蛇藤幼苗生理及光合特性的影响 |
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| 引用本文： | 肖巍.干旱胁迫对科尔沁沙地南蛇藤幼苗生理及光合特性的影响[J].防护林科技,2020(5):26-27,39. |
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| 作者姓名： | 肖巍 |
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| 作者单位： | 1.辽宁章古台科尔沁沙地系统国家生态定位观测研究站;2.辽宁省沙地治理与利用研究所;3.辽宁工程技术大学环境科学与工程学院 |
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| 摘 要： | 采用控水法研究干旱胁迫对南蛇藤(Celastrus orbiculatus)幼苗叶片生理及光合特性的影响。结果表明:干旱胁迫强度增加,南蛇藤叶片的相对水分亏缺、丙二醛等生理指标增大,叶片受到的损害增大;净光合速率、气孔导度等光合参数指标下降,叶片光合作用降低。在重度干旱胁迫下,南蛇藤依然存在光合作用,说明南蛇藤能够适应半干旱地区土壤水分亏缺的生存条件,可以在科尔沁沙地南缘进行造林。
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| 关 键 词： | 南蛇藤 干旱胁迫 生理特性 光合特性 |
Effects of Drought Stress on Physiological and Photosynthetic Characteristics of Celastrus orbiculatus Seedlings on the Horqin Sandy Land |
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| Xiao Wei.Effects of Drought Stress on Physiological and Photosynthetic Characteristics of Celastrus orbiculatus Seedlings on the Horqin Sandy Land[J].Protection Forest Science and Technology,2020(5):26-27,39. |
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| Authors: | Xiao Wei |
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| Institution: | (Liaoning Zhanggutai Horqin Sandy Land System National Ecological Orientation Observation and Research Station,Fuxin 123000,China;Sandy Land Management and Utilization Institute of Liaoning Province,Fuxin 123000,China;School of Environmental Science and Engineering,Liaoning Technical University,Fuxin 123000,China) |
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| Abstract: | The effects of drought stress on physiological and photosynthetic mechanism of Celastrus orbiculatus blades were studied by using water control method.Result shows that:the physiological indexes&photosynthetic parameters of C.orbiculatus blades were affected by different degrees of drought stress.Under severe drought stress,C.orbiculatus still has photosynthesis;it shows that C.orbiculatus can adapt to the living conditions of soil water deficit in semi-arid area. |
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| Keywords: | C orbiculatus drought stress physiological characteristics photosynthetic characteristics |
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