Next Article in Journal
Exogenous Gibberellic Acid Advances Reproductive Phenology and Increases Early-Season Yield in Subtropical Blackberry Production
Previous Article in Journal
Double-Double Row Planting Mode at Deficit Irrigation Regime Increases Winter Wheat Yield and Water Use Efficiency in North China Plain
Open AccessArticle

Agricultural Soil Organic Matters and Microbiome Are Shaped by Management and Hedgerows

1
Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
2
Rural Energy & Environment Agency, Ministry of Agriculture, Beijing 100125, China
3
College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(9), 1316; https://doi.org/10.3390/agronomy10091316
Received: 30 July 2020 / Revised: 28 August 2020 / Accepted: 1 September 2020 / Published: 3 September 2020
Despite the essential roles of soil dissolved organic matter (DOM) and soil microbes in agro-ecosystems, we still have a limited understanding of the extent by which they are impacted by agronomic strategies in ecological and conventional farming. Using three-dimensional fluorescence excitation–emission matrices (3D-EEM) and high-throughput microbial sequencing, the characteristics of soil DOM and microbiota under realistic field conditions were estimated in the farming soils with long-term ecological (EM) and conventional management (CM). Specifically, the role of hedgerows in the ecologically managed land (EMH) was assessed. The total fluorescent intensity of soil DOM in the EMH system was significantly higher than the values in CM and EM systems. Additionally, the five normalized excitation–emission area volumes from regional integration analysis increased in the order CM < EM < EMH. In comparison with CM and EM soils, the hedgerow significantly increased the evenness of the bacterial communities in the EMH system, whereas no differences were found for the alpha-diversity of eukaryotic communities. The composition of soil microbiota was significantly distinct among the three farming systems, with a hedgerow-specific effect on bacterial community and a management-specific effect on eukarya. The predicted functional profiles indicated that the hedgerow showed a higher contribution to the dissimilarity of bacterial functions. Furthermore, the distinction of the soil microbiota was modulated by the soil DOM composition and significantly positive correlations between the microbiota involved in nutrient cycling and soil DOM were observed. The findings in this work strengthen our understanding of the different responses of bacterial and eukaryotic communities under the long-term ecological management and highlight the beneficial roles of hedgerows in increasing organic matter and modulating community assembly. View Full-Text
Keywords: ecological management; hedgerows; three-dimensional fluorescence excitation–emission matrices; soil microbiota ecological management; hedgerows; three-dimensional fluorescence excitation–emission matrices; soil microbiota
Show Figures

Graphical abstract

MDPI and ACS Style

Sun, R.; Song, C.; Sun, Y.; Wang, Q.; Liu, H.; Wang, J. Agricultural Soil Organic Matters and Microbiome Are Shaped by Management and Hedgerows. Agronomy 2020, 10, 1316.

AMA Style

Sun R, Song C, Sun Y, Wang Q, Liu H, Wang J. Agricultural Soil Organic Matters and Microbiome Are Shaped by Management and Hedgerows. Agronomy. 2020; 10(9):1316.

Chicago/Turabian Style

Sun, Renhua; Song, Chengjun; Sun, Yuanze; Wang, Qian; Liu, Hongbin; Wang, Jie. 2020. "Agricultural Soil Organic Matters and Microbiome Are Shaped by Management and Hedgerows" Agronomy 10, no. 9: 1316.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop