| 高温、高CO2对农作物影响的试验研究 |
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| 引用本文： | 郭建平,高素华.高温、高CO2对农作物影响的试验研究[J].中国生态农业学报,2002,10(1):17-20. |
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| 作者姓名： | 郭建平 高素华 |
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| 作者单位： | 中国气象科学研究院,北京,100081 |
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| 基金项目： | 国家重点基础研究(973)发展规划项目(G1999043400)资助 |
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| 摘 要： | 在人工气候室试验研究高温和高CO2浓度对农作物的影响结果表明，高温、高CO2浓度使农作物生育进程加快，作物生育期缩短，作物的光合作用速率升高，蒸腾速率下降和气孔阻力增加；在相同的发育期使作物叶面积、根、茎、叶生长量不足，生物量下降；对不同作物产量结构的影响有差异，对小麦的影响主要是小穗数和穗粒数下降，而对玉米的影响主要是籽粒百粒重下降。高温、高CO2浓度可使农作物叶片中微量元素含量发生显著变化。
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| 关 键 词： | 高温 高CO2 农作物 影响 试验研究 |
| 收稿时间： | 2001/1/16 0:00:00 |
| 修稿时间： | 2001年1月16日 |
The experimental study on impacts of high temperature and high CO2 concentration on crops |
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| GUO Jian-Ping and GAO Su-Hua.The experimental study on impacts of high temperature and high CO2 concentration on crops[J].Chinese Journal of Eco-Agriculture,2002,10(1):17-20. |
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| Authors: | GUO Jian-Ping and GAO Su-Hua |
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| Institution: | Chinese Academy of Meteorological Sciences,Beijing 100081;Chinese Academy of Meteorological Sciences,Beijing 100081 |
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| Abstract: | The impact of high temperature and high CO2 concentration on crops is studied in artificial chambers. The results show that the high temperature and high CO2 concentration would accelerate crop growth and development,shorten the growth period,increase the photosynthetic rate,decrease the transpiration rate,and increase the stomatal resistance. At the same phenophase,the leaf area and biomass of leaf, root,stalk would decrease because of insufficient growth. The impacts on yield components of different crops are different,spikelet numbers and grains number is decreased in wheat,hundred grain weight decreased in corn. The high temperature and high CO2 concentration change the contents of trace elements in leaves. |
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| Keywords: | CO2 |
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