October 2010
History of river channel modifications - A review
Many river basins have witnessed episodes of modifications and shifts in its courses in the geological past. The study of these aspects can be regarded as part of a trend towards the understanding and explanation rather than depiction of how rivers adjust, under varied terrains of landform behaviour. The methodological appraisals that arise from such intensive research are illustrated in this paper using a detailed...
October 2010
Towards sustainable management of natural resources in the Mara river basin XE "Mara River Basin" in Northeast Tanzania
Lack of coordination among sectors and institutions is among factors that results in ineffective management of natural resources in most basins in east Africa including Tanzania XE "natural resources" . In many cases, this has reported to be the most factor contributing to natural resources degradation and conflicts between societies. This paper presents findings on different factors affecting...
October 2010
Effect of cement dust pollution on the vascular cambium of Juglans regia (L.)
Woody trees increase in girth by the activity of meristematic tissue called vascular cambium. The vascular cambium comprises fusiform and ray initials, which give rise to vertically oriented elements that is, vessels, fibers, tracheids etc. and horizontally oriented elements that is, rays. The present study reveals that there is reduction in dimensions and proportions of fusiform and ray initials in Juglans...
