| 毛白杨外生菌根类型及其生态学特性的研究 |
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| 引用本文： | 赵忠,马刊欣.毛白杨外生菌根类型及其生态学特性的研究[J].林业科学,1993,29(1):12-18. |
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| 作者姓名： | 赵忠 马刊欣 |
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| 作者单位： | 西北林学院林学系，西北林学院林学系，西北林学院林学系 杨陵 12100，杨陵 12100，杨陵 12100 |
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| 摘 要： | 根据形态和解剖特征,将中原地区的毛白杨外生菌根划分成14种类型,它们与宿主的共生关系大多差或极差。菌根分布特征指标统计结果表明,毛白杨(Populus tomentoso)林地土壤中,普遍缺乏能与毛白杨形成良好共生关系的外生菌根真菌,共生关系良好的菌根主要分布在pH值小于7.5的土壤中;共生关系差或极差的菌根和假菌根则在强碱性土壤中占优势,土壤pH大于7.5的育苗地中,毛白杨幼苗形成的菌根比较单一,以假菌根-5号类型为主。树木年龄对毛白杨林的菌根形成没有影响。
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| 关 键 词： | 毛白杨 外生菌根 类型 共生关系 |
RESEARCH ON TYPES AND ECOLOGICAL CHARACTERISTICS OF ECTOMYCORRHIZA OF POPULUS TOMENTOSA |
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| Zhao Zhong Ma Kanxin Duan Anan.RESEARCH ON TYPES AND ECOLOGICAL CHARACTERISTICS OF ECTOMYCORRHIZA OF POPULUS TOMENTOSA[J].Scientia Silvae Sinicae,1993,29(1):12-18. |
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| Authors: | Zhao Zhong Ma Kanxin Duan Anan |
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| Abstract: | According to the morphological and anatomical characteristics, the sampledmycorrhiza of Populus tomentosa from the central China are divided into 14types. Their anatomical characteristics indicate that most of them have a bador worse symbiotic relationship with the host plant. Statistical results from distri-bution characteristics index of the mycorrhiza show that the beneficial ectomy-corrhizal fungi exist rarely in the forest soil of Populus tomentosa. The majo-rity of them occur in the soils whose pH value are less than 7.5.On the con-trary the mycorrhiza with the bad or worse symbiotical relation or pseudom-ycorrhiza are dominant in the alkaline soils. In the alkaline nursery soils, onlya few of the ectomycorrhizal types have been discovered in roots of the nur-sery stock and the pseudomycorrhiza, type 5, makes up the majority of them.The tree ages seem to have no effect on the mycorrhiza formation in Populustomentosa plantation. |
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| Keywords: | Populus tomentosa Ectomycorrhizal type Distribution characteristics index Symbiotic relationship |
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