| 土壤水分对台湾相思盆栽幼苗光合速率的影响 |
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| 引用本文： | 涂,王克勤,刘芝芹.土壤水分对台湾相思盆栽幼苗光合速率的影响[J].安徽农业科学,2010,38(6):3229-3230. |
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| 作者姓名： | 涂 王克勤 刘芝芹 |
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| 作者单位： | 西南林学院环境科学与工程系,云南昆明,650224 |
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| 摘 要： | 以台湾相思（Acacia confusa）为盆栽供试树种,在大棚进行控水试验,重点分析水分对光合速率的影响。结果表明,台湾相思的净光合速率与土壤水分也有着密切的关系,二者呈二次多项式关系。通过控水试验,在不同的水分条件下的光响应结果表明,在不同土壤水分条件下,光合速率对光强的响应呈幂函数关系,相关极显著。净光合速率的最大值在不同土壤含水率时相差也十分大;光合速率的光补偿点与土壤含水率基本无关。
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| 关 键 词： | 干热河谷 光合速率 土壤水分 光合有效辐射 |
Effects of Soil Moisture on the Net Photosynthetic Rate of Acacia confusa Seedlings |
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| Institution: | TU Jing et al (DePARtment of Environmental Science and Engineering,Southwest Forestry College,Kunming,Yunnan 650224) |
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| Abstract: | Taking Acacia confusa as the test tree species of potted planting,the effects of water on photosynthesis rate was mainly analyzed through controlling soil water in the plastic shed.The results showed that net photosynthesis rate had close relations with soil water and it had conic polynomial relationship with soil water.Through the water-controlling tests,the light-responding results under different SWC of plants showed that under different SWC,the responses of Pn to PAR were power function and the relationship was very obvious.The maximum of Pn was greatly differed in different SWC.The light compensation point basically had nothing with SWC. |
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| Keywords: | Dry and hot river volley Photosynthesis rate Soil water content Photosynthetic available radiation |
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