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Land use change and soil carbon pools: evidence from a long-term silvopastoral experiment
- Source :
- Agroforestry Systems. 92:1035-1046
- Publication Year :
- 2017
- Publisher :
- Springer Science and Business Media LLC, 2017.
-
Abstract
- Multi-functional silvopastoral systems provide a wide range of services to human society including the regulation of nutrients and water in soils and the sequestration of atmospheric carbon dioxide (CO2). Although silvopastoral systems significantly contribute to enhance aboveground carbon (C) sequestration (e.g. C accumulation in woody plant biomass), their long-term effects on soil C pools are less clear. In this study we performed soil physical fractionation analyses to quantify the C pool of different aggregate fractions across three land use types including (1) silvopastoral system with ash trees (Fraxinus excelsior L.), (2) planted woodland with ash trees, and (3) permanent grassland, which were established in 1989 at Loughgall, Northern Ireland, UK. Our results show that 26 years after the conversion of permanent grassland to either silvopastoral or woodland systems, soil C (and N) stocks (0–20 cm depth) did not significantly change between the three land use types. We found, however, that permanent grassland soils were associated with significantly higher C pools (g C kg−1 soil; P 2 mm) whereas soil C pools of the micro-aggregate (53–250 μm) and silt and clay (
- Subjects :
- Biomass (ecology)
010504 meteorology & atmospheric sciences
Soil organic matter
Forestry
04 agricultural and veterinary sciences
Woodland
Soil carbon
Silt
Carbon sequestration
01 natural sciences
Nutrient
Agronomy
Soil water
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Environmental science
Agronomy and Crop Science
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 15729680 and 01674366
- Volume :
- 92
- Database :
- OpenAIRE
- Journal :
- Agroforestry Systems
- Accession number :
- edsair.doi...........f42130f5d1677ac2855938d27ea4d52b