欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2002, Vol. ›› Issue (9): 1169-1173.

• 研究论文 • 上一篇    下一篇

大气CO2浓度和温度升高对作物生理生态的影响

李伏生1, 康绍忠2, 张富仓2   

  1. 1. 广西大学农学院, 南宁 530005;
    2. 教育部农业部旱区农业水土工程研究所, 杨凌 712100
  • 收稿日期:2000-08-18 修回日期:2000-10-15 出版日期:2002-09-15
  • 通讯作者: 李伏生,男,1963年生,副教授,主要从事植物营养与施肥,作物水分利用方面的研究,发表论文20篇.Tel:0771-3237748,E-mail:lifusheng@hotmail.com
  • 基金资助:
    国家杰出青年科学基金资助项目(49725102)

Effect of atmospheric CO2 and temperature increment on crop physiology and ecology

LI Fusheng1, KANG Shaozhong2, ZHANG Fucang 2   

  1. 1. Agricultural College, Guangxi University, Nanning 530005;
    2. Institute of Agricultural Soil & Water Engineering in the Arid and Semiarid, Ministry of Education & Agricultural, Yangling 712100
  • Received:2000-08-18 Revised:2000-10-15 Online:2002-09-15

摘要: 论述了大气CO2浓度和温度升高下的植物生长、光合作用、产量以及水分养分利用效率等方面的研究进展.未来高CO2浓度下,光合作用速率有不同程度的提高,生物量和产量增加;气孔导度降低,水分利用效率(WUE)提高;一般地上部分和根系尤其是细根生物量增加,凋落物量随之增加,C/N比率提高,植物残体的腐解速率降低.CO2浓度升高后,会给根际微生物带来更多的底物,从而提高了微生物活性,加速养分的矿化过程,改善植物的养分状况.

关键词: 大气CO2浓度, 温度, 水分利用效率, 养分

Abstract: The effect of atmospheric CO2 and temperature increment on crop growth,photosynthesis,yield,and water and nutrient use efficiency was summarized and discussed in this paper.Under high CO2 concentration in the future,the photosynthetic rate of crops may be enhanced to some extent,and their biomass and yield may also be increased.Their stomatal conductance may be reduced,while water use efficiency (WUE) may by increased under elevated CO2 concentration.The aboveground biomass and root production,especially fine root production,will be greatly enhanced,and consequently,litter production increased,C/Nratios increased,plant litter decomposition rates declined under CO2 enrichment.Plants grown under elevated CO2 concentration may release more substrate into rhizosphere,which may lead to an increased activity of soil microorganisms,accelerated mineralization of nutrients,and improved nutritional status of the plant.

中图分类号: