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Chinese Journal of Applied Ecology ›› 1995, Vol. 6 ›› Issue (4): 346-348.

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Comparative study on internal and external nutrient cyclings or poplar tree under different fertilizations Ⅱ.Effect of fertilization on concentration and storage of major nutrients in poplar leaves before and after leaf fallen

Chen Xin, Yu Wantai, Zhang Lu, Yin Xiuyan, Shen Shanmin   

  1. Laboratory of Ecological Process of Trace Substance in Terrestrial Ecosystem, Institute of Applied Ecology, Academia Silica, Shenyang 110015
  • Received:1995-01-25 Revised:1995-05-26 Online:1995-10-25 Published:1995-10-25

Abstract: Poplar leaf can transfer large amount of organic matter from it into trunk, branch and root before its fallen, the output rate in unfertilization treatment being larger than that in fertilization one.Papplication does not leads its luxury absorption by popalr tree.Fertilization can increase the flux of external cyclings of major nutrient, and the output of Pand Kin poplar leaf before its fallen is 10% lower than control.

Key words: Poplar tree, Fertilization, Nutrient cycling