| 樟子松在西北干旱沙区的光合日变化特征 |
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| 引用本文： | 吴春荣,金红喜,严子柱,满多清,马全林,安富博.樟子松在西北干旱沙区的光合日变化特征[J].干旱区资源与环境,2003,17(6):144-146. |
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| 作者姓名： | 吴春荣 金红喜 严子柱 满多清 马全林 安富博 |
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| 作者单位： | 甘肃省治沙研究所,武威,733000 |
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| 基金项目： | 国家林业局“星火计划”项目“西北干旱沙区樟子松抗旱造林技术推广”(编号 :[2 0 0 0 ]国家林业局“星”字 0 1号 )资助 |
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| 摘 要： | 在甘肃省民勤治沙站 ,用 Li- 62 0 0便携式光合仪分别测定人工栽植的 4龄、9龄和 2 0龄樟子松的净光合速率日进程 ,其结果表明 :在干旱沙区 ,9龄以上樟子松的光合速率在午前随光强和气温而上升 ,午后下降。其 4龄、9龄和 2 0龄樟子松的最大净光合速率分别为 8.7μmol· m- 2 · s- 1、62 .3μmol· m- 2 · s- 1、1 9.7μmol· m- 2 · s- 1。
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| 关 键 词： | 干旱沙区 樟子松 净光合速率 |
| 文章编号： | 1003-7578(2003)06-144-03 |
| 修稿时间： | 2003年3月10日 |
Average Photosynthesis Variation of Pinus sylvesiris During a Day in the Arid and Desert Area |
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| WU Chun,rongJIN Hong,xiYAN Zi,zhuMAN Duo,qingMA Quan,linAN Fu,bo.Average Photosynthesis Variation of Pinus sylvesiris During a Day in the Arid and Desert Area[J].Journal of Arid Land Resources and Environment,2003,17(6):144-146. |
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| Authors: | WU Chun rongJIN Hong xiYAN Zi zhuMAN Duo qingMA Quan linAN Fu bo |
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| Abstract: | In connection with Pinus sylvsiris this experiment measured process of the net of photosynthesis rate during a day by Li-6200.The results showed that in typical arid desert area, elder(≥9 years)Pinus sylvesiris's photosynthesis rate increase with the illumination rate and the air temperature increasing before noon, decrease after noon.the highest net photosynthesis rate for 4y's,9y's and 20y's old trees are 8.7μmol.m -2 .s -1 ,62.3μmol.m -2 .s -1 and 19.7μmol.m -2 .s -1 . |
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| Keywords: | arid and desert area Pinus sylvesiris photosynthesis rate |
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