Mitcham Common
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Mitcham Common is an area of common land situated in South London. It is predominantly in the London borough of Merton, with parts straddling the borders with Sutton and Croydon.
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[edit] History
In feudal times, the poorest, least productive soil in a parish was designated as common land available for parishioners to graze animals and cut turf and timber for fuel. Members of this comunity with these rights were known as commoners. However, in the 19th Century when material for road building became a valuable resource, the old grazing land was replaced by a series of pits for gravel extraction.
These works reached such a proportion that public opposition, led by George Parker Bidder QC, culminated in the protection of the common under the Metropolitan Commons Act and the cost of its maintenance was split between the parish councils of Mitcham, Beddington, Wallington and Croydon according to the proportion of the common within each parish boundary.
Mitcham, now part of the London Borough of Merton, bore the majority of the costs, with the remainder almost evenly split between the boroughs of Croydon and Sutton. These funds support a warden and three assistants. Each council is represented by four nominated members of The Board, elected every two years.
[edit] Geography and enviroment
500, 000 years ago, Mitcham Common formed part of the river bed of the River Thames. Since then the course of the Thames has gradually altered, exposing gravels that were initially colonised by grasses and other Flowering Plants. Over time, woody species slowly overwhelmed these early colonisers, developing a loose scrubby vegetation that became denser until woodland had developed. Early humans were responsible for clearing trees and suppressing their regeneration by grazing cattle and cutting turf and timber for fuel.
In the late 19th Century these practices ceased and woodland was allowed to regenerate. This process allowed a succession from grassland, through a series of intermediate stages, to woodland.
The river gravels are well drained and strongly acidic, leading to a hostile enviroment in which plants have to withstand occasional drought and nutrient deficiency. However, considerable areas have acquired foreign soils during landfill programes, whilst ploughing for agriculture during World War Two and numerous pipe laying programmes have brought trapped nutrients to the surface. The result is a patchwork of soil types, each providing different plant and animal habitats. As the grassland reverts to woodland, the various stages in this process create further habitats.
The Seven Islands pond is the largest of all the ponds on the common, and was created as the result of gravel extraction during the 19th century. The most recent pond to be created, Bidder's pond, was created in 1990 and named for George Parker Bidder.
[edit] Buildings
There are a few buildings on the common. The buildings comprising the Windmill Trading Estate have existed in one form or another since 1782, when the estate was established as workhouses for the poor. The Mill House Ecology Centre and the Mill House Pub are located near the site of an old windmill, the remnants of which still exist. There also exists upon the common a statue in commemoration of George Parker Bidder.
