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Lantana camara L. (Verbenaceae) invasion effects on soil physicochemical properties

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Osunkoya, O. O. and Perrett, C. (2011) Lantana camara L. (Verbenaceae) invasion effects on soil physicochemical properties. Biology and Fertility of Soils, 47 (3). pp. 349-355.

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Article Link: http://dx.doi.org/10.1007/s00374-010-0513-5

Publisher URL: http://www.springerlink.com


Lantana camara is a recognized weed of worldwide significance due to its extensive distribution and its impacts on primary industries and nature conservation. However, quantitative data on the impact of the weed on soil ecosystem properties are scanty, especially in SE Australia, despite the pervasive presence of the weed along its coastal and inland regions. Consequently, mineral soils for physicochemical analyses were collected beneath and away from L. camara infestations in four sites west of Brisbane, SE Australia. These sites (hoop pine plantation, cattle farm, and two eucalyptus forests with occasional grazing and a fire regime, respectively) vary in landscape and land-use types. Significant site effect was more frequently observed than effect due to invasion status. Nonetheless, after controlling for site differences, ~50% of the 23 soil traits examined differed significantly between infested and non-infested soils. Moisture, pH, Ca, total and organic C, and total N (but not exchangeable N in form of NO3-) were significantly elevated, while sodium, chloride, copper, iron, sulfur, and manganese, many of which can be toxic to plant growth if present in excess levels, were present at lower levels in soils supporting L. camara compared to soils lacking the weed. These results indicate that L. camara can improve soil fertility and influence nutrient cycling, making the substratum ideal for its own growth and might explain the ability of the weed to outcompete other species, especially native ones.

Item Type:Article
Business groups:Biosecurity Queensland
Additional Information:© Springer Science+Business Media B.V.
Keywords:Lantana camara; biological invasion; soil chemistry; nutrient cycling; Australia; weed impact.
Subjects:Science > Invasive Species > Plants > Impact assessment
Science > Invasive Species > Plants > Weed ecology
Plant pests and diseases > Weeds, parasitic plants etc
Live Archive:14 Apr 2011 06:41
Last Modified:24 Feb 2023 01:06

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