globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12453
Scopus记录号: 2-s2.0-84946402968
论文题名:
Crop rotational diversity enhances belowground communities and functions in an agroecosystem
作者: Tiemann L.K.; Grandy A.S.; Atkinson E.E.; Marin-Spiotta E.; Mcdaniel M.D.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期:8
起始页码: 761
结束页码: 771
语种: 英语
英文关键词: Crop rotation ; Microbial community ; Soil carbon ; Soil nitrogen ; Soil organic matter
Scopus关键词: agricultural ecosystem ; agricultural intensification ; belowground biomass ; crop rotation ; enzyme activity ; soil fertility ; soil microorganism ; soil organic matter ; carbon ; nitrogen ; soil ; agriculture ; biodiversity ; chemistry ; crop ; growth, development and aging ; microbiology ; procedures ; soil ; United States ; Agriculture ; Biodiversity ; Carbon ; Crops, Agricultural ; Michigan ; Nitrogen ; Soil ; Soil Microbiology
英文摘要: Biodiversity 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. © 2015 John Wiley & Sons Ltd/CNRS.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107920
Appears in Collections:气候减缓与适应

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作者单位: Department of Natural Resources and the Environment, University of New Hampshire, 56 College Road, Durham, NH, United States; Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue St., East Lansing, MI, United States; Department of Geography, University of Wisconsin-Madison, 550 North Park St, Madison, WI, United States; Department of Environmental Sciences, Faculty of Agriculture and Environment, Center for Carbon, Water and Food, University of Sydney, 380 Werombi Road, Camden, NSW, Australia

Recommended Citation:
Tiemann L.K.,Grandy A.S.,Atkinson E.E.,et al. Crop rotational diversity enhances belowground communities and functions in an agroecosystem[J]. Ecology Letters,2015-01-01,18(8)
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