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生态学杂志 ›› 1986, Vol. ›› Issue (3): 18-22.

• 研究报告 • 上一篇    下一篇

华北平原作物群体结构性状初步研究

董振国   

  1. 中国科学院地理研究所
  • 收稿日期:1985-03-11 出版日期:1986-06-10

Preliminary Study on the Community-Structure of Grops in the North-China Plain

Dong Zhenguo   

  1. Institute of Geography, Academia Sinica
  • Received:1985-03-11 Online:1986-06-10

关键词: 植物, 生态类型, 光合作用, 气孔阻力, 叶片含水量

Abstract: Principal conclusions in this study can be shown as follows:1.Winter wheat:when its yield is higher than 7500kg per ha,the period in which leaf-area index goes beyond 4.5 from-jointing stage to mulk stage is more than 40 days.2.Paddy rice:because of the leaf's inclination of this community is bigger in general,the optimum leaf-area index can be determined to be about 6.0.

Key words: Plant, Ecotype, Photosynthesis, Stoma resistance, Leaf water content