The woody weed encroachment puzzle: gathering pieces

@article{Graz2008TheWW,
  title={The woody weed encroachment puzzle: gathering pieces},
  author={F. P. Graz},
  journal={Ecohydrology},
  year={2008},
  volume={1},
  pages={340-348}
}
Increases in woody plant densities in savanna grazing lands worldwide have resulted in a decline in the grazing capacity of these rangelands. At present, the actual cause of the problem is unknown although a vast body of literature deals with various aspects relevant to the issue. It is generally assumed, however, that the changes in the tree:grass ratio are a response to changes in soil-water development brought about by rangeland utilization. These utilization patterns differ from those… Expand
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