The drivers of bacterial community underlying biogeographical pattern in Mollisol area of China.
The drivers of bacterial community underlying biogeographical pattern in Mollisol area of China.
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DOI：
10.1016/j.ecoenv.2019.03.114
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发表时间：
2019-08
影响因子：
6.8
通讯作者：
Lei Wang;Xing Zhang;Ying Li;R. Sun;Yulong Lin;Hui Yu;Yuewen Xue;Xinzhu Zhou;Weixin Liu;Lilong Yan;Ying Zhang
中科院分区：
文献类型：
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作者：
Lei Wang;Xing Zhang;Ying Li;R. Sun;Yulong Lin;Hui Yu;Yuewen Xue;Xinzhu Zhou;Weixin Liu;Lilong Yan;Ying Zhang
为了更好地了解黑土细菌群落的组成及其驱动因子，选取了中国黑土区9个具有代表性的设施农业用地进行采样，并在较大的空间尺度上进行描述。高通量测序结果表明，这9个地区的土壤细菌群落结构在属水平上存在显著差异。细菌群落组成与土壤性质、污染物和地理纬度的相关性分析表明，在邻苯二甲酸酯的影响下，细菌群落多样性与pH和SOM仍有较强的相关性（P <0. 05）。主成分分析（PCA）结果表明，土壤性质（pH、有机质、堆积密度、氮、钾、磷含量）和邻苯二甲酸酯水平是影响土壤细菌群落结构差异的主要驱动因子，而地理纬度不是主要驱动因子。这些因素解释了细菌群落总变异的73.04%。其中，PAEs作为一种典型的污染物，是设施农业软土中细菌群落组成的主要驱动因素。说明PAEs是一种潜在的污染风险因子，对黑土区农业持续健康发展具有重要的指导意义。
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.