| 模拟酸雨胁迫对杨梅幼苗水分生理特性的影响 |
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| 作者姓名： | Yaho ZB Jiang H Yu SQ Lu MJ |
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| 作者单位： | 1. 亚热带森林培育国家重点实验室/浙江省森林生态系统碳循环与固碳减排重点实验室,杭州311300;浙江农林大学,杭州311300
2. 亚热带森林培育国家重点实验室/浙江省森林生态系统碳循环与固碳减排重点实验室,杭州311300;浙江农林大学,杭州311300;南京大学国际地球系统科学研究所,南京210093 |
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| 基金项目： | 国家重点基础研究发展规划项目(2010CB950702,2010CB428503,2005CB422207,2005CB422208); 国际合作重大项目(200073819); 国家高技术研究发展计划项目(2009AA122001,2009AA122005); 科技部重大基础性研究项目(2007FY110300-08); 国家自然科学基金项目(40671132); 浙江省重大科技专项(2008C13G2100010)资助 |
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| 摘 要： | 选择浙江省典型亚热带经济植物杨梅为对象,通过盆栽试验研究了重度酸雨(pH2.5)、中度酸雨(pH4.0)和对照(pH5.6)处理对杨梅幼苗水分生理特性的影响.结果表明:季节、年份和酸雨对杨梅幼苗的光合速率均有显著影响,各处理中,夏季的差异大于春、秋季,pH4.0处理对光合速率有促进作用;季节、年份、酸雨,季节-年份交互作用以及三者交互作用对气孔导度均有显著影响,各处理在夏季的差异大于春、秋季,酸雨对气孔导度有抑制作用;季节、年份、酸雨及季节-年份和季节-酸雨两两交互作用对蒸腾速率有显著影响,各处理夏季的差异大于春秋季,且pH2.5处理对蒸腾速率的抑制作用最强;酸雨、季节-年份和季节-酸雨交互作用对水分利用率有显著影响,且pH2.5处理对水分利用率有一定的促进作用.
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| 关 键 词： | 模拟酸雨 杨梅 幼苗 水分生理 |
Effects of simulated acid rain on water physiological characteristics of Myrica rubra seedlings |
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| Yaho ZB,Jiang H,Yu SQ,Lu MJ.Effects of simulated acid rain on water physiological characteristics of Myrica rubra seedlings[J].Chinese Journal of Applied Ecology,2011,22(8):1967-1974. |
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| Authors: | Yaho Zhao-bin Jiang Hong Yu Shu-quan Lu Mei-juan |
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| Affiliation: | YAO Zhao-bin1,2,JIANG Hong1,3,YU Shu-quan1,LU Mei-juan1,2 (1State Key Laboratory of Subtropical Forest Science & Zhejiang Province Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration,Hangzhou 311300,China,2Zhejiang Agriculture and Forestry University,3International Institute for Earth System Science,Nanjing University,Nanjing 210093,China). |
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| Abstract: | Taking the seedlings of typical subtropical economic tree species Myrica rubra in Zhejiang Province as test materials, a pot experiment was conducted to study their water physiological characteristics under effects of simulated acid rain (pH 2.5 and pH 4.0), with water (pH 5.6) as the control. Season, year, and acid rain all had significant effects on the photosynthetic rate (Pn). Among the treatments, the Pn had a greater difference in summer than in spring and autumn, and was higher in treatment acid rain... |
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| Keywords: | simulated acid rain Myrica rubra seedling water physiology |
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