The framework tree species approach to conserve medicinal trees in Uganda
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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
Agroforestry systems
Abstract
Framework species are indigenous tree
species planted in a mixed stand to accelerate natural
regeneration of forest and encourage biodiversity
regeneration. In this study we used the framework
species method to make multipurpose tree gardens to
provide traditional healers with woody species used
for medicine and other needs like food and firewood.
We specifically determined the phenology, germination
behaviour, survival and growth after planting 19
indigenous and 8 introduced woody species. The
species were planted in a mixed stand together at a
density of 3125 ha-1. Field performance was assessed
by monitoring survival, height and crown width once
every month for 13 months after planting. Eleven
species (Artocarpus heterophyllus, Calliandra calothyrsus,
Callistemon citrinus, Carica papaya, Carissa
spinarum, Leucaena leucocephala, Markhamia lutea,
Sarcocephalus latifolius, Senna siamea, S. spectabilis
and Terminalia schimperiana) proved to be excellent
framework species. Eight species qualified as ‘acceptable’
FWS (Albizia coriaria, Ceiba pentranta, Entada
abyssinica, Erythrina abyssinica, Eugenia jambos,
Ficus sycomorus, Maesopsis eminii and Milicia
excelsa), while seven species were ranked as ‘marginally
acceptable’ (Acacia macrothyrsa, Calpurnia
aurea, Canarium schweinfurthii, Capparis tomentosa,
Ficus natalensis, Senna sp. and Warburgia salutaris).
Annona squamosa was the only species rejected since
both germination and survival was low. Trees with
good reforestation traits could be recommended
for planting while the species that were marginally
acceptable or rejected require extra research since
some of them are important medicinal woody species
of conservation concern.
Description
Keywords
Framework species, Medicinal woody species, Seedling performance, Reaforestation
Citation
Stangeland, T., Tabuti, J., & Lye, KA (2011). The framework tree species approach to conserve medicinal trees in Uganda. Agroforestry systems , 82 (3), 275-284. DOI 10.1007/s10457-011-9396-1