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Wasps, wasps and more wasps
Rodger Whitlock wrote:
On Sat, 7 Aug 2004 14:04:43 +0100, sarah wrote: FWIW, most of what we see as moorland, even in Scotland was once reasonably productive woodland. A lot of it was cleared for for agriculture in the Bronze/Iron Age, but the soil was too poor for prolonged cropping. Impoverishment of the soil plus climatic change (it got wetter and colder) encouraged the development of the boggy/heathery stuff we now regard as characteristic of such places. Trees will grow quite well in soils unsuited to any other crop. "The Roadside Geology of Oregon", in describing the lateritic soils of Oregon's Coast Range (the low mountains between the Willamette Valley and the Pacific Ocean), remarks that the soils of the Coast Range are so poor that they're only good for growing trees. Hence, don't expect the place to ever be very populated. And all the more beautiful for it! But the weather doesn't encourage people, either. I have fond memories of a botanical field trip that took in that area, many years ago. regards sarah -- Think of it as evolution in action. |
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