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FOREST RESOURCES WANAGEMENT ›› 2012, Vol. 0 ›› Issue (2): 59-64.

• Science and Technology • Previous Articles     Next Articles

Vertical Distribution of the Soil Microbial Biomass Carbon in Rubber Plantations with Different Ages

WANG Chunyan1,2, CHEN Qiubo1, LI Guangming1,3, AN Feng1,4, YANG Lifu1, WANG Zhenhui1   

  1. 1. Rubber Research Institute,Chinese Academy of Tropical Agriculture Sciences,Danzhou 571737,Hainan,China;
    2. Hainan Agricutural Reclamation Academy of Sciences,Haikou 570206,Hainan,China;
    3. College of Environment and Plant Protection,Hainan University,Haikou,571737,Hainan,China;
    4. Institute for Technology Research and Innovation,Deakin University,Geelong,Victoria,3217,Australia
  • Received:2011-07-27 Revised:2012-03-21 Online:2012-04-28 Published:2020-11-27

Abstract: The rubber plantations with the chronosequences of 4 a,12 a,19 a,24 a and 29 a were selected to investigate the vertical variations of the soil microbial biomass carbon(SMBC)and their relationships with the ratio of soil organic carbon(SOC)and soil nutrients.The results showed that SMBC in all the 5 different aged rubber plantations increased with soil depth and varied from 28.87 to 138.71(mg/kg).The ratios of SMBC :SOC in the rubber plantations were between 0.66%~2.10%,therefore the soil carbon was in accumulating state.In addition,markedly positive correlation was identified between SMBC and SOC,soil total nitrogen and soil total phosphorus,correlation coefficient R>72%.

Key words: rubber plantation, soil microbial biomass carbon, soil organic carbon

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