| Titre : |
Ecology and management of Juncus effusus (soft rush) on cutaway peatlands |
| Type de document : |
texte imprimé |
| Auteurs : |
Mark McCorry, Auteur ; Florence Renou, Auteur |
| Editeur : |
Dublin [Irlande] : University College Dublin. Department of Environmental Resource Management |
| Année de publication : |
2003 |
| Collection : |
Forest Ecosystem Research Group Report num. 69 |
| Importance : |
66 p. |
| Note générale : |
BOGFOR Research Programme |
| Langues : |
Français (fre) |
| Catégories : |
[ZG] Irlande
[habitats/milieux] 5 - Tourbières et marais
[habitats/milieux] ZH - Zones humides
[Espèces (in biblio)] Juncus effusus
|
| Mots-clés : |
sol agricole sylviculture méthode de contrôle cycle de vie biologie écologie |
| Résumé : |
"Many of the original conifer tree crops planted on cutaway peatlands in the Irish midlands in the 1980s have failed to produce a commercial crop. Competing vegetation has been identified as one of the main factors influencing at some point their successful establishment. Juncus effusus is one of the most frequent and abundant plant species found growing on cutaway peatland sites. This species has created severe management problems at certain sites because of its competition with young trees and attempts to control it have been made with mixed success.
J. effusus is particularly well adapted to colonising and spreading over bare cutaway peatlands. This species prefers a wet acidic environment with slightly enriched nutrient conditions and seasonal water level fluctuations, but has a broad ecological range. It is therefore able to form the dominant part of vegetation on large areas of cutaway peatlands. There is no relatively unique set of environmental characteristics that distinguishes J. effususdominated areas from other similar areas. J. effusus is relatively easy to control in agricultural situations but is much more difficult to control in cutaway peatland forestry situations. The life-cycle of J. effusus has few weaknesses that can be easily exploited to increase control efficiency in a forest situation.
The current management of J. effusus-dominated vegetation uses hand-cleaning, mowing and weed-wiping methods. In some cases this has altered the vegetation type but in others, there is re-growth of J. effusus. It was concluded that more intensive control methods are required to control J. effusus effectively. It is not known if the current management practices are actually able to positively influence the establishment and growth of the planted conifers. It was concluded that more research is required to investigate more thoroughly (1) the population biology and ecology of J. effusus on cutaway peatlands and (2) different control treatments of J. effusus on bare cutaway peatlands, and the influence of these treatments on the growth and establishment of planted conifers." (source : auteurs) |
| Type de publication : |
rapport d'études |
| Référence biblio : |
McCorry M., Renou F., 2003 - Ecology and management of Juncus effusus (soft rush) on cutaway peatlands. Dublin : University College Dublin. Department of Environmental Resource Management, 66 p. (Forest Ecosystem Research Group Report ; 69). |
| ID PMB : |
69085 |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69085 |
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