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cje ›› 2002, Vol. ›› Issue (3): 57-60.

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Effects of Enriched CO2 on undergrourd Carbon Flow in the Plant-Soil System

Zheng Fengying, Peng Shaolin, Li Yuelin   

  1. South China Institute of Botany, Chinese Academy of Sciences, Guangzhou 510650
  • Received:2000-03-22 Revised:2000-04-30 Online:2002-06-10

Abstract: Carbon flow into soil increased due to enhanced plant production under elevated atmospheric CO2 concentration.Rhizosphere physiological procedures deciding carbon allocation under ground has changed:Root turnover and root exudation increased;symboints activity,and soil microorganisms biomass enhanced,etc.But the quantity of carbon flux to soil cannot be determined exactly.

Key words: built-up area, landscape expansion index, socioeconomic driving forces, urbanization, Su-Xi-Chang region.

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