Spatial patterns in soil physicochemical and microbiological properties in a grassland adjacent to a newly built lake
The new ‐built lake increased the soil water content, total nitrogen, and total organic carbon of near‐lake grassland. Soil microbial biomass, bacteria, and fungi content of adjacent grassland increased with the increase of the built‐time of lake. The new‐built lake changed the sensitivity and relat ionship between microorganisms and soil physiochemical properties of adjacent grassland. AbstractSoil 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, Actinobacter...
Source: MicrobiologyOpen - Category: Microbiology Authors: Jinsheng Li,
Chan An,
Jianying Shang,
Tianchi Zhao,
Qian Zhang,
Xiaomeng Yang,
Cheng Ren,
Ding Huang,
Kesi Liu,
Xinqing Shao Tags: ORIGINAL ARTICLE Source Type: research