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Article
2024
Effects of land-use intensity on functional community composition and nutrient dynamics in grassland
Effects of land-use intensity on functional community composition and nutrient dynamics in grassland
Abstract
Land-use intensity drives productivity and ecosystem functions in grassland. The effects of long-term land-use intensification on plant functional community composition and its direct and indirect linkages to processes of nutrient cycling are largely unknown. We manipulated mowing frequency and nitrogen inputs in an experiment in temperate grassland over ten years. We assessed changes in species composition and calculated functional diversity (FDis) and community weighted mean (CWM) traits of specific leaf area (SLA), leaf dry matter content (LDMC) and leaf and root nitrogen of the plant community, using species-specific trait values derived from databases. We assessed above- and belowground decomposition and soil respiration. Plant diversity strongly decreased with increasing land-use intensity. CWM leaf nitrogen and SLA decreased, while CWM LDMC increased with land-use intensification, which could be linked to an increased proportion of graminoid species. Belowground processes were largely unaffected by land-use intensity. Land use affected aboveground litter composition directly and indirectly via community composition. Mowing frequency, and not a land-use index combining mowing frequency and fertilization, explained most of the variation in litter decomposition. Our results show that land-use intensification not only reduces plant diversity, but that these changes also affect nutrient dynamics.
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Environments, 11 (2024), 8, 173.
https://doi.org/10.3390/environments11080173.
ISSN: 2076-3298
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English
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630 Agriculture
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Sustainable Development Goals
BibTeX
@article{Walter2024-08-13,
doi = {10.3390/environments11080173},
author = {Walter, Julia and Thumm, Ulrich and Buchmann, Carsten M. et al.},
title = {Effects of Land-Use Intensity on Functional Community Composition and Nutrient Dynamics in Grassland},
journal = {Environments},
year = {2024-08-13},
volume = {11},
number = {8},
}