[Effects of canopy spectral composition on growth and photosynthetic fluorescence characteristics of
| Autor: | Jing-Ran, Ma, Ya-Nan, Wang, Lu, Chang, Jiao-Jiao, Deng, Wang-Ming, Zhou, Da-Pao, Yu, Qing-Wei, Wang |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Ying yong sheng tai xue bao = The journal of applied ecology. 33(9) |
| ISSN: | 1001-9332 |
| Popis: | We investigated the responses of leaf and individual traits, growth, and fluorescence characteristics of seedlings of two dominant species of broad-leaved Korean pine forest in Changbai Mountain,本研究选择长白山阔叶红松林优势树种红松和蒙古栎幼苗为对象,研究其植株形态、生长和光合荧光特性对5种光谱处理的响应。结果表明: 红松与蒙古栎的形态结构与生长主要受蓝光与紫外B区(UV-B)辐射调控。滤除蓝光后两种幼苗的植株叶面积比和相对生长速率均显著降低,而滤除UV-B辐射显著增加了红松的叶面积比和相对生长速率,分别上升了41.8%和47.7%,降低了蒙古栎的株高、总叶面积和生物量积累。滤除UV-B辐射显著降低了2种幼苗的光合荧光调节能力,红松的下降幅度较低,其非调节性耗散的量子产量( |
| Databáze: | OpenAIRE |
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