GCSE Biology - Deforestation & Land Use

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*** WHAT'S COVERED ***
1. The importance and diverse human uses of land as a finite resource.
* Examples of land use: building towns and cities, quarrying, farming, and waste disposal.
* Consequences of human land use: reduced land availability for other organisms and environmental damage.
2. Deforestation: the process of clearing forests.
* Primary reasons: clearing land for agriculture (cattle ranching, crop cultivation including rice and biofuels), and logging for timber and fuel.
* Key environmental impacts: reduction in photosynthesis leading to increased atmospheric CO2, release of stored carbon from burning forests, and destruction of habitats resulting in biodiversity loss.
3. Peat Bog Destruction: threats to valuable ecosystems.
* Formation and ecological role of peat bogs: acidic, waterlogged conditions leading to peat formation which stores significant amounts of carbon.
* Reasons for destruction: drainage for agriculture and extraction of peat for fuel or garden compost.
* Environmental consequences: release of stored carbon dioxide upon drainage and decomposition, and loss of unique habitats leading to reduced biodiversity and potential species extinction.

*** CHAPTERS ***
0:00 Introduction
0:52 What is Deforestation
1:44 3 Problems of Deforestation
2:58 Peat Bogs
3:47 Destruction of Peat Bogs

*** PLAYLISTS ***






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