Article (Scientific journals)
Effect of the exotic invasive plant Solidago gigantea on soil phosphorus status
Chapuis-Lardy, L.; Vanderhoeven, SONIA; Dassonville, N. et al.
2006In Biology and Fertility of Soils, 42 (6), p. 481-489
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Keywords :
biological invasion; early goldenrod; phosphomonoesterase activity; sequential phosphorus fractionation; soil phosphorus availability
Abstract :
[en] Invasions by exotic plant species can modify biogeochemical cycles and soil properties. We tested whether invasion by early goldenrod (Solidago gigantea, Asteraceae) modifies soil phosphorus pools at three sites in Belgium. Aboveground phytomass and soil samples (0-10 cm) were collected in early goldenrod patches and in adjacent, uninvaded, grassland vegetation. Soil P fractions varied between the three sites in line with corresponding differences in organic matter, carbonate and clay contents. In addition to site-specific impacts, plots invaded by goldenrods generally had higher concentrations of labile P [i.e. resin-extractable inorganic P (Pi) and bicarbonate-extractable Pi and organic P]. Soil CO2 release and alkaline and acid phosphomonoesterase activities were also higher in invaded plots, suggesting that the increase in labile Pi was due to enhanced mineralization. Phosphorus uptake by vegetation was 1.7-2.1 times higher in invaded plots, mostly due to the higher annual yield of S. gigantea. Altogether, the results indicate that S. gigantea enhances P turnover rates in invaded ecosystems.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Chapuis-Lardy, L.
Vanderhoeven, SONIA ;  Université Libre de Bruxelles - ULB
Dassonville, N.
Koutika, L *-S
Meerts, P.
Language :
English
Title :
Effect of the exotic invasive plant Solidago gigantea on soil phosphorus status
Publication date :
2006
Journal title :
Biology and Fertility of Soils
ISSN :
0178-2762
eISSN :
1432-0789
Publisher :
Springer Science & Business Media B.V.
Volume :
42
Issue :
6
Pages :
481-489
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 May 2010

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