Uprooting and burial of invasive alien plants: a new tool in coastal restoration?
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Uprooting and burial of invasive alien plants : a new tool in coastal restoration? / Kollmann, Johannes Christian; Brink-Jensen, Kasper; Frandsen, Sally I.; Hansen, Mille K.
I: Restoration Ecology, Bind 19, Nr. 3, 2011, s. 371-378.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Uprooting and burial of invasive alien plants
T2 - a new tool in coastal restoration?
AU - Kollmann, Johannes Christian
AU - Brink-Jensen, Kasper
AU - Frandsen, Sally I.
AU - Hansen, Mille K.
PY - 2011
Y1 - 2011
N2 - Invasive alien plants are a problem for conservation management, and control of these species can be combined with habitat restoration. Subsoil burial of uprooted plants is a new method of mechanical control, which might be suitable in disturbed habitats. The method was tested in Rosa rugosa (Japanese Rose), an invasive shrub in north-western Europe with negative effects on coastal biodiversity. Two months after uprooting and burial in dunes of north-eastern Denmark, 89% of the 58 shrubs resprouted from roots and rhizomes; on average 41 resprouts per shrub. Resprout density was twice as high at former shrub margins compared with the center; resprouts were taller and originated from more superficial soil layers at the margin than in the center. Resprouting was negatively correlated with fragment depth, and no resprouts were observed from greater than 15 cm depth. The number of resprouts increased with fragment dry mass (0.5–168.5 g). After 18 months with harrowing the species was still resprouting, flowering, and fruiting, albeit with no difference between shrub margin and center. Resprouts were taller (26 cm) and coverage was higher (0–4%) after two compared with three times harrowing, whereas no difference was found in cover of native dune species (1–5%). The results show that even small fragments of R. rugosa resprout, and that resprouting persists despite repeated harrowing. Thus, careful subsoil burial of all fragments is necessary, special attention should be paid to the shrub margin, and follow-up treatments are needed. The effectiveness of the burial method is discussed for restoration of coastal dunes.
AB - Invasive alien plants are a problem for conservation management, and control of these species can be combined with habitat restoration. Subsoil burial of uprooted plants is a new method of mechanical control, which might be suitable in disturbed habitats. The method was tested in Rosa rugosa (Japanese Rose), an invasive shrub in north-western Europe with negative effects on coastal biodiversity. Two months after uprooting and burial in dunes of north-eastern Denmark, 89% of the 58 shrubs resprouted from roots and rhizomes; on average 41 resprouts per shrub. Resprout density was twice as high at former shrub margins compared with the center; resprouts were taller and originated from more superficial soil layers at the margin than in the center. Resprouting was negatively correlated with fragment depth, and no resprouts were observed from greater than 15 cm depth. The number of resprouts increased with fragment dry mass (0.5–168.5 g). After 18 months with harrowing the species was still resprouting, flowering, and fruiting, albeit with no difference between shrub margin and center. Resprouts were taller (26 cm) and coverage was higher (0–4%) after two compared with three times harrowing, whereas no difference was found in cover of native dune species (1–5%). The results show that even small fragments of R. rugosa resprout, and that resprouting persists despite repeated harrowing. Thus, careful subsoil burial of all fragments is necessary, special attention should be paid to the shrub margin, and follow-up treatments are needed. The effectiveness of the burial method is discussed for restoration of coastal dunes.
KW - Former LIFE faculty
KW - eradication;;
KW - invasive species
KW - Rosa rugosa
KW - subsoil burial
KW - uprooting
KW - white dunes
U2 - 10.1111/j.1526-100X.2009.00569.x
DO - 10.1111/j.1526-100X.2009.00569.x
M3 - Journal article
VL - 19
SP - 371
EP - 378
JO - Restoration Ecology
JF - Restoration Ecology
SN - 1061-2971
IS - 3
ER -
ID: 33235397