A strategic study of the impact of invasive alien plants in the high rainfall catchments and riparian zones of South Africa on total surface water yield.
作者： JDS Cullis , AHM Görgens , C Marais
关键词: Water use 、 Current (stream) 、 Hydraulic engineering 、 Invasive species 、 Hydrology 、 Drainage basin 、 Environmental science 、 Surface water 、 Introduced species 、 Riparian zone
摘要: The aim of this study was to develop a methodology determine the impact upland (non-riparian) invasive alien plants in high rainfall catchments and riparian areas all on total surface water yield available each management South Africa. This would enable Department Water Affairs Forestry (DWAF) through its public programme Working for (WfW) user charge system clearing It found that country, which included from major dams, minor dams run-of-river yield, currently approximately 172 x 106 m3/a could go up as much 1 410 future. varied greatly between had potential reach 50 % (195 m3/a) registered use Thukela WMA future if not controlled. reduction due zone estimated be 523 under current conditions increase 314 allowed become fully invaded. combined at 4% 16
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