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应用生态学报 ›› 2002, Vol. ›› Issue (10): 1339-1343.

• 研究论文 • 上一篇    下一篇

开放式空气CO2浓度升高与作物/杂草的竞争关系

曾青, 朱建国   

  1. 中国科学院南京土壤研究所物质循环开放实验室, 南京, 210008
  • 收稿日期:2002-06-28 修回日期:2002-08-18 出版日期:2002-10-15
  • 通讯作者: 曾青,女,1971年生,硕士,主要从事植物学和土壤学研究,发表论文14篇.E-mail:qzeng@issas.ac.cn
  • 基金资助:
    中国科学院知识创新重要方向项目(KZCX2408);国家自然科学基金重大国际合作研究资助项目(40120140817).

ZENG Qing, ZHU Jianguo   

  1. Laboratory of Material Cycling in Pedosphere, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008.
  • Received:2002-06-28 Revised:2002-08-18 Online:2002-10-15

摘要: CO2浓度升高对植物的光合作用、呼吸作用和水分利用等生理过程产生直接影响,进而影响植物的生长和繁殖.CO2浓度升高对于具有C3光合途径的植物较具C4光合途径的植物更为有益.由于许多重要的杂草是C4植物,而许多重要的作物是C3植物,CO2浓度升高对杂草/作物的相互关系将有重要影响.本文就全球CO2浓度升高和气候变化对杂草/作物之间竞争关系影响进行综述,同时针对目前研究现状和可持续农业的需要,提出CO2浓度升高条件下杂草/作物之间竞争关系及未来农田杂草治理方面理论与实践中有待解决的问题.

关键词: CO2浓度增高, 作物, 杂草, 竞争关系

Abstract: Elevated atmospheric CO2 has direct photosynthesis effects on photosynthesis,respiration and water use efficiency, as well as on the growth and reproduction of plants.CO2 enrichment is more beneficial to plants with the C3 photosynthetic pathway than to those with the C4 photosynthetic pathway.Most major weeds are C4 plants, while many crops are C3 plant. Therefore,different effects of elevated atmospheric CO2 have important implications for weed/crop interaction. In this paper, the effect of CO2enrichment and global chang on weed/crop interaction were summarized, and some theoretical and practical aspects were discussed.

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