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[1]李小林,金鑫,李强,等.生态环境因子对四川松茸菌塘土壤微生物的影响[J].应用与环境生物学报,2015,21(01):164-169.[doi:10.3724/SP.J.1145.2014.07011]
 LI Xiaolin,JIN Xin,LI Qiang,et al.Effects of ecological environment factors on soil microorganisms of Tricholoma matsutake shiro in Sichuan Province[J].Chinese Journal of Applied & Environmental Biology,2015,21(01):164-169.[doi:10.3724/SP.J.1145.2014.07011]
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生态环境因子对四川松茸菌塘土壤微生物的影响()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
21卷
期数:
2015年01期
页码:
164-169
栏目:
研究论文
出版日期:
2015-02-25

文章信息/Info

Title:
Effects of ecological environment factors on soil microorganisms of Tricholoma matsutake shiro in Sichuan Province
作者:
李小林 金鑫 李强 熊川 郑林用
1四川省农业科学院土壤肥料研究所 成都 610066 2四川省农业科学院 成都 610066 3四川大学生命科学学院 成都 610065
Author(s):
LI Xiaolin JIN Xin LI Qiang XIONG Chuan ZHENG Linyong
1Soil and Fertilizer Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China 2Sichuan Academy of Agricultural Sciences, Chengdu 610066, China 3School of Life Sciences, Sichuan University, Chengdu 610065, China
关键词:
松茸微生物活性微生物生物量土壤酶藏区攀西地区
Keywords:
Tricholoma matsutake microbial activity microbial biomass soil enzyme Tibetan region Panxi region
分类号:
Q178.1
DOI:
10.3724/SP.J.1145.2014.07011
文献标志码:
A
摘要:
以四川藏区和攀西松茸代表产区菌塘土壤为研究对象,测定菌塘土壤细菌、放线菌和真菌的菌落数量,土壤微生物的生物量碳和氮,以及土壤酸性磷酸酶、脲酶和过氧化氢酶活性,采用多元回归树分析生态环境因子对微生物的影响. 结果表明:当海拔高于3 592 m时,在一定范围内海拔越高(3 841-3 860 m),土壤酶活性越高;当海拔低于3 592 m时,枯枝落叶层厚度越厚(2.25-8.45 cm)、海拔越低(3 058-3 226 m),土壤酶活性越高. 当坡度大于或等于42.5°时,一定范围内枯枝落叶层厚度越高(1.05-8.45 cm)、海拔越低(3 058-3 225 m),松茸菌塘微生物生物量及菌落数量越高;而当坡度小于42.5°时,在一定范围内海拔越低(3 058-3 460 m)、枯枝落叶厚度越薄(0.28-3.2 cm)越有利于松茸菌塘土壤微生物生物量和菌落数量积累. 总之,海拔、坡度及枯枝落叶厚度是影响松茸菌塘土壤微生物活性和生物量的3个关键因素.
Abstract:
This research investigated soil samples of Tricholoma matsutake shiroes in Tibetan region and Panxi region of Sichuan Province to understand the effect of microbial activities and biomass on T.matsutake, and the potential effects of environmental variables on microorganism of T. matsutake shiroes. The microbe quantity of microorganisms (bacteria, actinobacteria, and fungi), the microbial biomass (microbial biomass carbon and nitrogen), and the enzyme activities (acid phosphatase, urease, and catalase) were analyzed. Multivariate regression tree was used to study the microbial activity and microbial biomass associated with environmental variables including elevation, slope, thickness and coverage of litter. The results showed that above the 3 592 m elevation, the enzyme activities of T. matsutake shiroes increased with the elevation (3 841 - 3 860 m); below the 3 592 m elevation, however, the enzyme activities increased with the litter thickness (2.25 - 8.45 cm) but decreased with elevation (3 058 - 3 226 m). With slopes greater than 42.5°, the microbial quantity and biomass increased with the litter thickness (1.05 - 8.45 cm) and decreased with elevation (3 058 - 3 225 m); with slopes smaller than 42.5°, however, the microbial quantity and biomass decreased with both litter thickness (0.28 - 3.2 cm) and elevation (3 058 - 3 460 m). In conclusion, elevation, slope, and litter thickness are the major environmental factors affecting the soil microbial activity and biomass in T. matsutake shiroes.

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备注/Memo

备注/Memo:
四川省科技支撑计划项目(2013NZ0029,2012NZ0003,2014FZ0004)和四川省财政创新能力提升工程青年基金项目(2014CXSF-030)资助 Supported by the Science & Technology Pillar Program of Sichuan (2013NZ0029, 2012NZ0003 & 2014FZ0004), and the Youth Foundation for Innovational Capacity Building Project of Sichuan Financial Department (2014CXSF-030)
更新日期/Last Update: 2015-02-15