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Soil heavy metal concentration patterns at two speed zones along the Gaborone-Tlokweng border post highway, Southeast Botswana
(JASEM http://www.ajol.info/index.php/jasem/article/view/43693/27216, 2006-06)
Since 1988 Botswana has been experiencing an unprecedented increase in vehicular traffic which
is suspected to be having contamination effects on soils along heavily used roads in the country. This study aimed at
understanding ...
Influence of seasonal flooding on soil total nitrogen, organic phosphorus and microbial populations in the Okavango Delta, Botswana
(Journal of Arid Environments. http://www.elsevier.com/wps/find/journaldescription.cws_home/622855/description#description, 2003)
The effect of flooding on soil total nitrogen, phosphorus and microbial
population in different vegetation zones (floodplain, island and woodland)
and profile depth (0?1, 0?5, 2?0, 3?0, 4?0 and 5?0m) of the Okavango ...