Impact on soil quality of a 10-year-old short-rotation coppice poplar stand compared with intensive agricultural and uncultivated systems in a Mediterranean area |
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| Authors: | Elisa Pellegrino Claudia Di Bene Cristiano Tozzini Enrico Bonari |
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| Institution: | 1. Land Lab, Scuola Superiore Sant’Anna, P.za Martiri della Libertà 33, 56127 Pisa, Italy;2. Department of Crop Plant Biology, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy;1. Laboratory of Soil Ecology, ABACUS, Cinvestav, Avenida Instituto Politécnico Nacional 2508, Z.C., C. P. 07360 México D.F., Mexico;2. International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600 México D.F., Mexico;1. Forestry Research Group, University of Extremadura, Spain;2. Department of Mathematics, University of Extremadura, Spain;1. Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Dr., 110 Russell Labs, Madison, WI 53706, USA;2. Department of Forestry, Michigan State University, 126 Natural Resource Bldg, East Lansing, MI 48824, USA;1. Department Computational Landscape Ecology, UFZ – Helmholtz Centre for Environmental Research, 04318 Leipzig, Germany;2. Professorship for Land Use Modeling and Ecosystem Services, Faculty of Agriculture, Institute for Geodesy and Geoinformation, University of Bonn, 53115 Bonn, Germany;3. Department of Physical Geography and Ecosystem Science, Lund University, Sölvegatan 12, 223 62 Lund, Sweden;4. Department Community Ecology, UFZ – Helmholtz Centre for Environmental Research, 06120 Halle, Germany;5. Martin-Luther-University Halle-Wittenberg (MLU), Geobotany and Botanical Garden, Am Kirchtor 1, 06108 Halle, Germany;6. Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 LeipzigMartin-Luther-University Halle-Wittenberg (MLU), Geobotany and Botanical Garden, Am Kirchtor 1, 06108 Halle, Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany;1. Mindanao State University, Marawi City 9700, Philippines;2. State University of New York College of Environmental Science and Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA |
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| Abstract: | Bioenergy crops play an ecologically and economically fundamental role as an alternative to agri-food productions and as renewable energy sources. Little attention has been focused on soil quality following conversion of agricultural lands to biomass crops. Here, we assessed the impact of a 10-year-old short-rotation coppice (SRC) poplar stand on the main soil chemical parameters, microbial biomass carbon, soil respiration, and arbuscular mycorrhizal fungi (AMF), compared with intensive agricultural and uncultivated systems. Three different harvest frequencies of poplar SRC (annual T1, biannual T2 and triennial T3 cutting cycles) were evaluated. Multivariate analysis showed that poplar SRC improved soil quality compared with intensive agricultural and uncultivated systems. T1 and T2 positively affected AMF inoculum potential and root colonisation of a co-occurring plant species, while T3 improved the majority of soil chemical and biochemical parameters. Moreover, three different AMF morphospecies belonging to the genera Glomus and Scutellospora were found in poplar SRC, while morphospecies belonging exclusively to genera Glomus were recorded in intensive agricultural and uncultivated systems. Such aspects have agro-ecological implications, since the positive changes of soil nutrient availability and carbon content together with a high abundance and diversity of soil biota show clear soil sustainability of poplar SRC. |
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