Savannah | |
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A savanna or savannah is a mixed woodland-grassland ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses.Savannas maintain an open canopy despite a high tree density. It is often believed that savannas feature widely spaced, scattered trees. However, in many savannas, tree densities are higher and trees are more regularly spaced than in forests. The South American savanna types cerrado sensu stricto and cerrado dense typically have densities of trees similar to or higher than that found in South American tropical forests, with savanna ranging from 800–3300 trees per hectare (trees/ha) and adjacent forests with 800–2000 trees/ha.
Wakefield | |
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Wakefield is a cathedral city in the City of Wakefield District of West Yorkshire, England, on the River Calder and the eastern edge of the Pennines, which had a population of 99,251 at the 2011 census.The Battle of Wakefield took place in the Wars of the Roses and it was a Royalist stronghold in the Civil War. Wakefield became an important market town and centre for wool, exploiting its position on the navigable River Calder to become an inland port.