Spatial patterns in soil physicochemical and microbiological properties in a grassland adjacent to a newly built lake

Soil water content (SWC) is an important determinant for nutrient cycling and microorganism activity in the grassland ecosystem. Lakes have a positive effect on the water supply of the neighboring ecosystem. However, information evaluating whether newly built lakes improve the physiochemical propert...

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Bibliographic Details
Published in:MicrobiologyOpen (Weinheim) 2019-12, Vol.8 (12), p.e912-n/a
Main Authors: Li, Jinsheng, An, Chan, Shang, Jianying, Zhao, Tianchi, Zhang, Qian, Yang, Xiaomeng, Ren, Cheng, Huang, Ding, Liu, Kesi, Shao, Xinqing
Format: Article
Language:English
Subjects:
Aluminum
Anaerobic bacteria
Aquatic ecosystems
Aquatic soils
Artificial lakes
Bacteria
Biomarkers
Biomass
Carbon
Chemical Phenomena
Construction
Ecosystem
Ecosystems
Fatty acids
Gram-negative bacteria
Grassland
Grasslands
grazing grassland
Lakes
Methanotrophic bacteria
Microorganisms
Moisture content
Nitrogen
Nitrogen - analysis
Nutrient content
Nutrient cycles
Organic carbon
Original
Phosphorus - analysis
Phosphorus - chemistry
Physiochemistry
Precipitation
Soil - chemistry
Soil Microbiology
Soil microorganisms
Soil properties
soil property
Soil water
soil water content
Soils
Spatial Analysis
Taxonomy
the newly built lake
Total organic carbon
Water content
Water depth
Water shortages
Water supply
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Summary:Soil water content (SWC) is an important determinant for nutrient cycling and microorganism activity in the grassland ecosystem. Lakes have a positive effect on the water supply of the neighboring ecosystem. However, information evaluating whether newly built lakes improve the physiochemical properties and microorganism activity of adjacent grassland soil is rare. A 15‐hectare artificial lake with a 2 m depth was built on grazed grassland to determine whether the change of soil physiochemical properties and microorganism activity of the adjacent grassland depended on the distance from the lake. SWC and total nitrogen (TN) were greater within 150 m of the lake than at distances over 150 m from the lake. The total organic carbon (TOC) increased first at 100–150 m from the lake and then decreased. The soil microbial biomass and the bacterial and fungal contents increased with increasing years after the construction of the lake. Gram‐negative bacteria and methanotrophic bacteria were greater within a 30 m distance of the lake. Over 60 m away from the lake, Actinobacteria, gram‐positive bacteria, and anaerobic bacteria showed higher abundances. In the area near the lake (
ISSN:2045-8827
2045-8827
DOI:10.1002/mbo3.912