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cje ›› 2005, Vol. ›› Issue (1): 9-14.

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Ecological distribution of Lumbricida in in Maoerain moumtion forest ecosystem

HUANG Chulong1,2,5, HUANG Chuqi3, ZHANG Xueping 4   

  1. 1. Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China;
    2. College of Resource and Environment Science, Quanzhou Normal University, Quanzhou 362000, China;
    3. Statistic Bureau of Datian County, Fujian Datian 366100, China;
    4. Harbin Normal University, Harbin 150080, China;
    5. Graduate School of Chinese Academy of Sciences, Beijing 100000, China
  • Received:2004-04-20 Revised:2004-06-28 Online:2005-01-10

Abstract: Lumbricida is the main species of soil animals in Maoer mountain.Employing hand-picking and apparatus-determining methods,and in combination with field survey and indoor experiment,the distribution regulation of Lumbricida and its relationship with environmental factors were investigated.The results showed that the mean population density and biomass of Lumbricida in birch were far less than those of other three types of forests.The average population density and biomass increased gradually from valley to mountain top.The Lumbricida swarmed into the surface soil layer in all sampling months except October.The size of the population changed with different habitat conditions,especially with soil water content,whose fittest range was 40 % to 65% for Lumbricida in the Maoer mountain forest ecosystem.

Key words: Forest ecosystem, Forest ecosystem health, Health assessing, Approaches

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