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| Titel |
Forest conversion to poplar plantation in a Lombardy floodplain (Italy): effects on soil organic carbon stock |
| VerfasserIn |
C. Ferré, R. Comolli, A. Leip, G. Seufert |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 11, no. 22 ; Nr. 11, no. 22 (2014-11-27), S.6483-6493 |
| Datensatznummer |
250117697
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| Publikation (Nr.) |
 copernicus.org/bg-11-6483-2014.pdf |
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| Zusammenfassung |
Effects of forest conversion to poplar plantation on soil organic carbon
(SOC) stocks were investigated by sampling paired plots in an alluvial area
of the Ticino River in Northern Italy. According to land registers and
historical aerial photographs, the two sites were part of a larger area of a
200 yr old natural forest that was partly converted to poplar plantation
in 1973. The soil sampling of three layers down to a depth of 100 cm was
performed at 90 and 70 points in the natural forest (NF) and in the nearby
poplar plantation (PP) respectively. The substitution of the natural forest
with the poplar plantation strongly modified soil C stock down to a depth of
55 cm, although the management practices at PP were not intensive. After
calculation of equivalent soil masses and of SOC stocks in individual
texture classes, the comparison of C stocks showed an overall decrease in
SOC of 5.7 kg m−2 or 40% in consequence of 37 years of poplar
cultivation.
Our case study provides further evidence that (i) spatial heterogeneity of
SOC is an important feature in paired plot studies requiring a careful
sampling strategy and high enough number of samples; (ii) land use changes
through tillage are creating a more homogeneous spatial structure of soil
properties and may require the application of dedicated spatial statistics
to tackle eventual problems of pseudo-replicates and auto-correlation; (iii)
short rotation forests are not properly represented in current reporting
schemes for changes of SOC after land use change and may better be
considered as cropland. |
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