期刊
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
卷 177, 期 -, 页码 93-99出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2019.03.114
关键词
High-throughput sequencing; Mollisol (black soil); PAEs; Bacterial community; Driving factors
资金
- National Natural Science Foundation of China [31600414, 41877128]
- University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province [UNPYSCT-2016156]
- National Natural Science Fund for Distinguished Young Scholars [41625002]
- MOA Modern Agricultural Talents Support Project
- Second Batch of National 10,000 Person Plan in 2016 National key R D projects [2018YFD0800105]
- Heilongjiang Provincial Key Laboratory of Soil Protection and Remediation
In order to better understand the composition and driving factors of the bacterial community in Mollisols, we selected 9 representative facility agricultural lands in Mollisol area of China for sampling, and described it on a larger spatial scale. Soil bacterial community structure in these 9 regions (determined by high-throughput sequencing analysis) showed significant differences at the genus level. The correlation between bacterial community composition and soil properties, contaminants and geographical latitude showed that the diversity of bacterial community was still strongly correlated with pH and SOM under the influence of phthalates (P < 0.05). Principal component Analysis (PCA) showed that soil properties (i.e. pH, organic matter, stacking density, the content of nitrogen, potassium, phosphorus) and PAEs level rather than geographic latitude were main drivers of differences in bacterial community structure. These factors account for 73.04% of the total variation of the bacterial community. Among them, PAEs act as a typical pollutant is the main factor driving the composition of bacterial community in facility agriculture Mollisols. This shows that PAEs is a potential pollution risk factor, which has important guiding significance for the sustainable and healthy development of agriculture in Mollisol area.
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