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Somaliland     
The changing pattern of land‐use in the Forest of Abernethy, Inverness‐shire in the period AD 1750 to the present is examined, using information from records and a number of maps and surveys. It is shown that the forest has a long history of exploitation for timber and the grazing of livestock, and that by the mid‐eighteenth century a pattern not markedly different from that of the present had already emerged. Evidence for the widespread formation of heathland in Dark Age times, and the fact that almost every part of Abernethy has been felled for timber at least once, modifies the concept of the forest as a “native Pinewood”.  相似文献   
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The important links between vegetation and rates of accelerated erosion have tended to be obscured in the wider framework of the many factors in erosion. This review draws together the geographical and agricultural implications of vegetation cover, emphasising the many and varied reasons, both on a field and a wider scale, for maintaining good cover.  相似文献   
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