Assessing composition and diversity of woody vegetation in mined arid and semi arid lands of Kerio valley, Kenya

Author:

Barsosio Abraham,Kirui Bernard,Maara Nelson

Abstract

The woody vegetation in semi-arid area is important in providing ecosystem services and goods. However, it faces threats manifested in land-use changes such as mining. This study aimed at assessing the composition and diversity of woody vegetation as well as inherent soil physico-chemical parameters in a previously mined area and comparing it with a semi-pristine adjacent area.  Six transects containing five plots each were established within two blocks separated by a river. In each plot, data was collected on woody tree growth characteristics and soil parameters. Thirteen woody species were recorded in the rehabilitated mined and twenty two in semi-pristine sites with Ficus sycomorus L Moraceae being the dominant species at the two sites. Woody vegetation diversity was higher in semi-pristine site than in the rehabilitated mined site. However, this was not significant (t-test, =D.F=1 P=0.767). Mean soil nutrients (F2, 7. = P=0.821), pH (F2, 7. =109.88, P=xxx), was higher in rehabilitated mined sites while mean soil temperature (F2, 7. =9.08, P=0.011) was higher in mined areas. Rehabilitating mined sites can bring back species diversity, composition, however what is not clear is whether ecosystem functions are restored. 

Publisher

Science Publishing Corporation

Subject

General Medicine

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