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应用生态学报 ›› 1995, Vol. 6 ›› Issue (1): 104-105.

• 研究简报 • 上一篇    下一篇

N、P供给对作物排放N2O的影响研究初报

陈欣, 沈善敏, 张璐, 吴杰, 王学强   

  1. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1994-11-22 出版日期:1995-01-25 发布日期:1995-01-25
  • 基金资助:

    中国科学院沈阳应用生态研究所所长基金

A preliminary research on the effect of nitrogen and phosphorus supply on N2O emission by crops

Chen Xin, Shen Shanmin, Zhang Lu, Wu Jie, Wang Xueqiang   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1994-11-22 Online:1995-01-25 Published:1995-01-25

关键词: MaxEnt模型, 优势物种, 潜在分布

Abstract: The preliminary results with detached leaves and seedlings of corn, soybean and sorghumfrom pot and field experiments indicate that inorganic nitrogen supply can significantly enhance the N2O emission and NO3- concentration in plants in the case of phosphorus deficiency and of less light, but phosphorus Supply and sunlight condition can markedly reduce the N2O emission and NO3- concentration in the plants.It's concluded seemed thatthe N2O emission is a kind of physiological protection to avoid NO3- accumulation in plantswhen nitrogen metabolism in plants is in disorder and mineral nitrogen is in over supply.

Key words: Nitrogen and phosphorus supply, Crops, N2O emission, potential distribution, MaxEnt model, dominant species