IMHE OpenIR  > 山地表生过程与生态调控重点实验室
青海不同林分类型土壤养分与微生物功能多样性
Alternative TitleSoil Nutrients and Microbial Functional Diversity of Different Stand Types in Qinghai Province
向泽宇1,2; 张莉3; 张全发1; 刘伟4; 王根绪5; 王长庭2; 胡雷2
Corresponding Author王长庭
2014
Source Publication林业科学
ISSN1001-7488
Volume50Issue:4Pages:22-31
Other Abstract

摘要:利用常规实验室分析法和Biolog-Eco 微平板法研究青海省不同林型土壤养分与微生物功能多样性。结果表明: 大通1#、湟中和尖扎的土壤有机质、全氮和碱解氮含量较高,大通2#、循化和乐都的土壤有机质、全氮和碱解氮含量居中,民和的土壤有机质、全氮和碱解氮含量则较低; 土壤全磷含量表现为民和最低,其他林型间差异不显著; 土壤速效磷含量表现为循化、尖扎、湟中> 大通1#、大通2#、乐都> 民和; 土壤速效钾含量表现为大通2#、民和> 乐都> 大通1#、湟中、循化、尖扎; 各林型的土壤全钾含量变化均不显著; 不同林型条件对土壤养分的积累总体表现为大通1#、尖扎>湟中>循化>大通2# >乐都>民和,4种林木对土壤养分的分布和改良表现为云杉>白桦>山杨>落叶松; 各林型的土壤微生物群落功能多样性指数表现为乐都、民和> 大通1#、大通2#、湟中> 循化、尖扎; 不同林型土壤微生物碳源利用的主成分分析(PCA)显示碳水化合物和氨基酸是微生物利用的主要碳源; 各林型土壤养分含量与微生物功能多样性的RDA 分析表明,土壤养分因子很好地解释了微生物功能多样性的变异,对微生物功能多样性有重要的影响,其中有机质、氮素和速效磷是影响土壤微生物代谢的主要因素。

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In this study,soil nutrients and microbial community functional diversity of different stand types in Qinghai Province were investigated by conventional laboratory analysis and Biolog-Eco micro plate method. Results showed that Datong 1#,Huangzhong and Jianzha had relative higher content of organic matter,total nitrogen and available nitrogen in the soil,then Datong 2#,Xunhua and Ledu were in intermediate,and Minhe was lower. The total phosphorus content of Minhe was lowest,while there were no significant differences in total phosphorus content between other stand types. The available phosphorus content was Xunhua,Jianzha,Huangzhong > Datong 1 #,Datong 2 #,Ledu > Minhe,and the available potassium content was Datong 2 #,Minhe > Ledu > Datong 1 #,Huangzhong,Xunhua,Jianzha. The total potassium content of each stand type was not significantly different. The accumulation of overall soil nutrients in different stand types was in turn Datong 1#,Jianzha > Huangzhong > Xunhua > Datong 2# > Ledu > Minhe. Effects of four tree species on the distribution and improvement of soil nutrients were in sequence of Picea asperata > Betula platyphylla > Populus davidiana > Larix gmelinii. The soil microbial community functional diversity index in the various stand types was Ledu,Minhe > Datong 1 #,Datong 2 #,Huangzhong, > Xunhua,Jianzha. The principal component analysis of carbon source utilization of the soil microbial community in different stand types showed that carbohydrates and amino acids were the main carbon source. RDA of each stand type soil nutrient content and microbial community functional diversity indicated that soil nutrient factors well explained the variation of the microbial community functional diversity. Soil nutrient had important influence on microbial community functional diversity. The organic matter, nitrogen and available phosphorus were the main factors influencing the metabolism of soil microbial communities.

Keyword青海 不同林型 土壤养分 微生物群落
Subject AreaS714.3
DOI10.11707 /j.1001-7488.20140404
Indexed ByCSCD ; 北大中文核心
Language中文
CSCD IDCSCD:5142004
Funding Organization中国科学院战略性先导科技专项“应对气候变化的碳收支认证及相关问题”(XDA05050207 ; XDA050605) ; 西南民族大学中央高校基本科研业务费专项资金(11NZYTH07) ; 国家自然科学基金项目(40925002)
Citation statistics
Cited Times:26[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18375
Collection山地表生过程与生态调控重点实验室
Affiliation1.中国科学院水生植物与流域生态重点实验室 中国科学院武汉植物园
2.西南民族大学生命科学与技术学院
3.内蒙古阿拉善盟林业研究所
4.中国科学院西北高原生物研究所
5.中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
向泽宇,张莉,张全发,等. 青海不同林分类型土壤养分与微生物功能多样性[J]. 林业科学,2014,50(4):22-31.
APA 向泽宇.,张莉.,张全发.,刘伟.,王根绪.,...&胡雷.(2014).青海不同林分类型土壤养分与微生物功能多样性.林业科学,50(4),22-31.
MLA 向泽宇,et al."青海不同林分类型土壤养分与微生物功能多样性".林业科学 50.4(2014):22-31.
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