Good to see that the ‘Wherry has broken’, as the older
valley residents had it, and the South Winterborne is now in full
flow in all its branches, including the mill leat, washing pool, the
water meadow sluices and the gap at West End (which could be a relic
of the Doomsday Book watermill) and which has been the subject of much
discussion in the village recently . The bourne or borne ( or burn
in Scotland) in the name comes from the Old English word for a stream
or brook. First used in c1396 by W. Longland in ‘Piers Plowman’
, perhaps the most succinct
definition is given by the Wiltshire writer Richard Jefferies.
1879 R. Jefferies Wild
Life 22 The
villages on the downs are generally on a bourne, or winter
water-course..In summer it is a broad winding trench..along whose bed
you may stroll dryshod..In winter, the bourne often has the
appearance of a broad brook.
There
is sometimes
puzzlement as to how the plants and animals that live in the stream
survive the dry periods; the answer is that only species that are
capable of dealing with the
dry spell exist in the river in some form or other, such as eggs for
the minnows, seeds for the plants, and eggs or larvae for the
insects. The birds just fly somewhere else.
The
natural ebb and flow of the upper reaches of the stream has , in
recent years, been disturbed by Wessex Water being required to put
compensation water into the stream as part of their allowable
extraction rate, so hiding
its winter borne nature. As with many other things climate change will inevitably have some effect on the aquifer which supplies the stream, perhaps leading to more extreme changes in the flow.