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Soil seed bank and regeneration potential on eroded hill slopes in the Kondoa Irangi Hills, central Tanzania
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolutionary Biology, Plant Ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolutionary Biology, Plant Ecology.
1999 (English)In: Applied Vegetation Science, ISSN 1402-2001, E-ISSN 1654-109X, Vol. 2, 209-214 p.Article in journal (Refereed) Published
Abstract [en]

The soil seed bank of the severely eroded Kondoa Irangi Hills, Tanzania was studied in order to determine the seed density and composition and to establish the relationshiop between seed bank and standing vegetation. The area had not been grazed for 15 yr prior to the study. A recently grazed area was used for comparison. The seed bank density (at 0-5 cm depth) ranged from 344 to 9158 seeds/m2 in the dry season and 172 to 5107 seeds/m2 in the wet season. The seed bank was very heterogeneous, both spatially and temporally, and it showed significant variation in size and composition in both sampling periods. The species similarity between the seed bank and the above-ground vegetation in all plots was low (Sørensen's index = 0.00 – 0.44). The highest similarity was found in the recently grazed area. The seed bank was dominated by annuals and by early successional species. It is concluded that re-vegetating the hill slopes with woody vegetation by using the seed bank will be difficult because seeds of woody species were not found in the soil.

Place, publisher, year, edition, pages
1999. Vol. 2, 209-214 p.
National Category
Ecology
Research subject
Ecological Botany
Identifiers
URN: urn:nbn:se:uu:diva-199511OAI: oai:DiVA.org:uu-199511DiVA: diva2:619729
Available from: 2013-05-06 Created: 2013-05-06 Last updated: 2017-12-06

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