欢迎访问林业科学,今天是

›› 1997, Vol. 33 ›› Issue (zk2): 104-109.

• 论文及研究报告 • 上一篇    下一篇

会同集水区杉木林土壤微生物的生态分布

周国英 田大伦   

  1. 中南林学院 株洲412006
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1997-11-25 发布日期:1997-11-25

ECOLOGICAL DISTRIBUTION OF THE SOIL MICROORGANISMS lN CHINESE FIR PLANTATION WATERSHED IN HUITONG COUNTY,HUNAN PROVINCE

Zhou GuoYing,Tian Dalun   

  1. Central-South Forestry College Zhuzhou 412006
  • Received:1900-01-01 Revised:1900-01-01 Online:1997-11-25 Published:1997-11-25

摘要: 会同集水区杉木林土壤微生物的生态分布随集水区林木年龄不同而变化。调查结果表明:细菌总数随杉木年龄增大呈逐渐减少趋势,放线菌、真菌则呈逐渐增大趋势;生理类群微生物中,硝化细菌以8年生杉木林地最多,采伐迹地最少,固氮菌在30年生杉木林地最多,厌纤分解菌则随杉木林年龄增大而增多。可见集水区杉木林土壤微生物的生态分布与林地环境因子有关。土壤微生物的动态规律对林地土壤肥力和植物营养有很重要的意义。

关键词: 杉木林, 土壤微生物, 生态分布

Abstract: The distribution of the soil microorganisms in Chinese fir plantation watershed in Huitong varies with different ages of stand.With the increment of the stand age,the bac-teria show a decrease tendency,actinomyces and fungi show an increse tendency.Most nitrifying bacteria occurs in the 8-year-old Chinese fir plantation,while least in the 30-year-old plantation.The results of the studies indicate that the quantities distribution of the soil microbes varies with forest eco-environment.They have important effects on the soil fertility and tree nutrient.

Key words: Chinese fir, Forest soil microorganisms, Ecological distribution