| 油松光合作用对臭氧浓度升高的响应 |
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| 引用本文： | 付士磊,吴红. 油松光合作用对臭氧浓度升高的响应[J]. 西北林学院学报, 2010, 25(2): 11-14 |
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| 作者姓名： | 付士磊 吴红 |
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| 作者单位： | 沈阳建筑大学建筑与规划学院;沈阳理工大学; |
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| 基金项目： | 国家自然科学基金重点项目，辽宁省自然科学基金资助项目 |
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| 摘 要： | 采用开顶箱法研究了高浓度O3(80 nmol.mol-1)对沈阳市城区内油松光合生理的影响。结果表明,高浓度O3处理降低了油松净光合速率。油松光合速率下降则是2种限制因素共同作用的结果。O3处理后,油松的羧化效率始终低于对照,表明油松的气孔调节能力较弱,更易受到O3的伤害。
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| 关 键 词： | 油松 高浓度臭氧 光合特性 非气孔限制 |
Effects of Elevated O_3 on Photosynthesis in Pinus tabulaeformis |
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| FU Shi-lei,WU Hong. Effects of Elevated O_3 on Photosynthesis in Pinus tabulaeformis[J]. Journal of Northwest Forestry University, 2010, 25(2): 11-14 |
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| Authors: | FU Shi-lei WU Hong |
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| Affiliation: | FU Shi-lei1,WU Hong2(1.School of Architecture , Planning,Shenyang Jianzhu University,Shenyang,Liaoning 110168,China,2.Shenyang Ligong University,China) |
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| Abstract: | With top-opened chamber system,the responses of photosynthesis in Pinus tabulaeformis to elevated atmospheric O_3 concentration(80 nmol·mol~(-1))were investigcoted.The results showed that elevated ozone concentration inhibiteds net photosynthetic rate of P. tabulaeformis. The decrease in photosynthesis rate of P. tabulaeformis exposed to high O_3 was resulted from both stomatal and nonstamatal limitations. It seemed that the ability of stomatal reaction of P. tabulaeformis was injured easily by elevated ozone. |
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| Keywords: | Pinus tabulaeformis elevated ozone concentration photosynthetic character non-stomatal limitation |
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