|Table of Contents|

Effects of ecological environment factors on soil microorganisms of Tricholoma matsutake shiro in Sichuan Province(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2015 01
Page:
164-169
Research Field:
Articles
Publishing date:

Info

Title:
Effects of ecological environment factors on soil microorganisms of Tricholoma matsutake shiro in Sichuan Province
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
Keywords:
Tricholoma matsutake microbial activity microbial biomass soil enzyme Tibetan region Panxi region
CLC:
Q178.1
PACS:
DOI:
10.3724/SP.J.1145.2014.07011
DocumentCode:

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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Last Update: 2015-02-15