城市森林不同林型下土壤基本理化特性及土壤真菌多样性

发布时间：2018-02-01 05:46

本文关键词： 人工纯林土壤基本理化性质 ITS序列高通量测序　出处：《东北林业大学学报》2016年03期 　论文类型：期刊论文

【摘要】：以东北林业大学哈尔滨城市林业示范基地8种人工纯林(胡桃楸、水曲柳、黄檗、白桦、兴安落叶松、樟子松、黑皮油松、红皮云杉)为研究对象,在对不同纯林的土壤酸碱度、相对含水量和电导率等基本理化性质检测的基础上,进行了各样品的土壤真菌宏基因组间差异研究,结果显示:不同人工纯林的土壤酸碱度、相对含水量和电导率都存在着显著的差异,p H值的变化范围在4.597~7.393,相对含水量为4.11%~10.90%,土壤电导率为953.000~3 443.333μs·cm-1,其中胡桃楸林的土壤p H值和电导率最高,兴安落叶松林相反。土壤真菌宏基因组检测发现9个样品土壤真菌宏基因组间存在明显的差异,9个样品中共检测到8个真菌门、24个纲、63个目、124个科、211个属、362个种。其中真菌门和真菌纲水平的变化最明显,主要涵盖了子囊菌门、担子菌门、壶菌门、接合菌门、球囊菌门。另外,在黑皮油松中检测到近年来新发现的子囊菌门古菌根菌纲真菌,在对照样品中检测到担子菌门柄锈菌亚门伞型束梗孢菌纲真菌,在胡桃楸和水曲柳样品中检测到球囊菌门真菌,而担子菌门黑粉菌亚门外担菌纲真菌仅在对照和红皮云杉样品中检测到。在真菌门分类水平上,胡桃楸、水曲柳、兴安落叶松、樟子松样品中以子囊菌门真菌为优势菌种;白桦、黑皮油松、红皮云杉样品以担子菌门真菌为优势菌种。在真菌纲分类水平上,主要以伞菌纲真菌为优势菌种。水曲柳土样样品中发现优势菌种为子囊菌门盘菌亚门下的粪壳菌纲真菌。
[Abstract]:Eight artificial pure forests (Juglans mandshurica, Rhizoma mandshurica, berberine, Bai Hua, Larix gmelinii, Pinus sylvestris, Pinus sylvestris, Pinus tabulaeformis, Picea koraiensis) in Harbin City Forestry demonstration Base of Northeast Forestry University were studied. Based on the physical and chemical properties of soil pH, relative water content and electrical conductivity of different pure forests, the difference of macrogenome of soil fungi was studied. The results showed that there were significant differences in soil pH, relative water content and electrical conductivity between different artificial pure forests in the range of 4.597 ~ 7.393. The relative water content was 4.11 / 10.90 and the soil electrical conductivity was 953.000 ~ (3 443.333) 渭 s 路cm ~ (-1). The soil pH value and electrical conductivity of Juglans mandshurica forest were the highest. In contrast, the macrogenome analysis of soil fungi showed that there were significant differences among 9 samples, including 8 phylum, 24 classes and 63 orders in 9 samples. There are 362 species of 211 genera and genera in 124 families. The most obvious changes in the level of Fungi and Fungi are found, mainly covering ascomycetes, basidiomycetes, ampulla, conjugate, Balloonidophyta. In recent years, the newly discovered ascomycorrhizal fungi were found in Pinus tabulaeformis, and basidiomycetes were detected in control samples. Mycetes were detected in Juglans mandshurica and Fraxinus mandshurica samples, while basidiomycetes were detected only in the control and Picea koraiensis samples. At the taxonomic level of fungi, Juglans mandshurica was found. In the samples of Fraxinus mandshurica, Larix gmelinii and Pinus sylvestris, the dominant fungi were ascomycetes. Bai Hua, Pinus tabulaeformis and Picea koraiensis samples were dominated by basidiomycetes. The dominant fungi in soil samples of Fraxinus mandshurica were ascomycetes subphylum subphylum.
【作者单位】：东北林业大学;
【基金】：国家林业局“948”项目(2008-4-34)
【分类号】：S714
【正文快照】： wqyll@sina.com。Basic Soil Physicochemical Properties and Soil Fungal Diversity under Different Forest Types of Urban Forest//Gao Weiwei,Kang Ying,Lu Hong,Wang Qiuyu(Northeast Forestry University,Harbin 150040,P.R.China)//Journalof Northeast Forestry Uni

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