期刊论文

中文

中南林业科技大学学报

1673-923X

2000

20

3

24-28

10.14067/j.cnki.1673-923x.2000.03.004

国家重点科技攻关项目!“桉树纸浆用材树种良种选育及培育技术研究”（ 96-0 11-0 1-0 3 ）的部分内容；

本校为第一机构

为了探讨湘南丘陵低山区桉树林地土壤肥力综合评价方法 ,研究了资兴市桉树人工林地土壤微生物数量及其类群分布规律 .结果表明 :资兴市桉树人工林地土壤微生物数量主要集中在 0～ 2 0 cm的土层中 ,随土层加深 ,其数量迅速减少 ;在深度为 0～ 70 cm的土层中 ,同一类群的微生物数量变动范围较大 ,其中好气性细菌为 3 .0 9× 10 5 ～ 6.5 8× 10 5 个· g- 1 ,真菌为 4.43× 10 4～ 3 .5 3× 10 6个·g- 1 ,放线菌为 7.5 0× 10 2～ 1.60× 10 3个· g- 1 ,厌气性细菌为 4.73× 10 3～ 6.0 9× 10 4个·g- 1 ,自生固氮菌为 2 .5 0× 10～ 6.0 0×10 2 个· g- 1 ;资兴市林科所桉树人工林林地微生物...

To find out a synthetical way to evaluate the soil fertility of Eucalyptus plantation lands in lower mountainous areas of the Souther part of Hunan province, some researches were conducted on the amount and group distribution in Eucalyptus plantations of Zixing City. The results showed that soil microbes there were mainly concentrated in the 0～20 cm soil layer and their quantity rapidly decreased with the increase of soil depth; The numbers of soil microbes of the same group varied greatly in soil with a depth of 0～70 cm, among which aerobic ...