[Forest decline, afforestation, and tree variety trials in Porto Santo [species diversity]]
1993
Soendergaard, E. (Kongelige Veterinaer- og Landbohoejskole, Hoersholm (Denmark). Arboretet)
An experiment with introduction and screening of woody plant species was initiated on Porto Santo Madeira in January 1990. The aims of this project are: 1. To find suitable species for afforestation in order to diversify the existing quasi monospecific plantations of Pinus halepensis on Porto Santo. 2. To find species which could be used to control erosion. 3. To enrich the assortment of ornamental species for gardens and landscape. 4. To compare the performance of species indigenous to- or adapted to the conditions of Porto Santo with new introductions of exotic woody species. The preliminary results are presented and discussed in the present paper with regard to potential useful species and problems concerning the introduction of exotics i.a. risks for uncontrolled dissemination
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