Crop rotational diversity enhances belowground communities and functions in an agroecosystem

L. K. Tiemann; A. S. Grandy; E. E. Atkinson; E. Marin‐Spiotta; M. D. McDaniel

doi:10.1111/ele.12453

journal article May 25, 2015

Crop rotational diversity enhances belowground communities and functions in an agroecosystem

L. K. Tiemann A. S. Grandy E. E. Atkinson E. Marin‐Spiotta M. D. McDaniel

Ecology Letters Vol. 18 No. 8 pp. 761-771 · Wiley

View at Publisher Save 10.1111/ele.12453

Abstract

AbstractBiodiversity loss, an important consequence of agricultural intensification, can lead to reductions in agroecosystem functions and services. Increasing crop diversity through rotation may alleviate these negative consequences by restoring positive aboveground–belowground interactions. Positive impacts of aboveground biodiversity on belowground communities and processes have primarily been observed in natural systems. Here, we test for the effects of increased diversity in an agroecosystem, where plant diversity is increased over time through crop rotation. As crop diversity increased from one to five species, distinct soil microbial communities were related to increases in soil aggregation, organic carbon, total nitrogen, microbial activity and decreases in the carbon‐to‐nitrogen acquiring enzyme activity ratio. This study indicates positive biodiversity–function relationships in agroecosystems, driven by interactions between rotational and microbial diversity. By increasing the quantity, quality and chemical diversity of residues, high diversity rotations can sustain soil biological communities, with positive effects on soil organic matter and soil fertility.

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Metrics

680

Citations

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References

Details

Published: May 25, 2015
Vol/Issue: 18(8)
Pages: 761-771
License: View

Authors

L

L. K. Tiemann

Department of Natural Resources and the Environment University of New Hampshire 56 College Road, Room 114 Durham NH 03824 USA; Department of Plant Soil and Microbial Sciences Michigan State University 1066 Bogue St. East Lansing MI 48824 USA

A

A. S. Grandy

Department of Natural Resources and the Environment University of New Hampshire 56 College Road, Room 114 Durham NH 03824 USA

E

E. E. Atkinson

Department of Geography University of Wisconsin‐Madison 550 North Park St Madison WI 53706 USA

E

E. Marin‐Spiotta

Department of Geography University of Wisconsin‐Madison 550 North Park St Madison WI 53706 USA

M

M. D. McDaniel

Department of Natural Resources and the Environment University of New Hampshire 56 College Road, Room 114 Durham NH 03824 USA; Department of Environmental Sciences Faculty of Agriculture and Environment Center for Carbon Water and Food University of Sydney 380 Werombi Road Camden NSW 2570 Australia

Funding

Office of Science Award: DE‐FCO2‐07ER64494

U.S. Department of Agriculture Award: #2009‐65107‐05961

Office of Energy Efficiency and Renewable Energy Award: DE‐ACO5‐76RL01830

Cite This Article

L. K. Tiemann, A. S. Grandy, E. E. Atkinson, et al. (2015). Crop rotational diversity enhances belowground communities and functions in an agroecosystem. Ecology Letters, 18(8), 761-771. https://doi.org/10.1111/ele.12453

Crop rotational diversity enhances belowground communities and functions in an agroecosystem

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