Year 12 Geography Notes.docx - Year 12 Geography Overview and Depth Study Notes Overview of Nature Extent Causes and Consequences of Land Cover Change

Year 12 Geography Notes.docx - Year 12 Geography Overview...

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Year 12 Geography Overview and Depth Study Notes Overview of Nature, Extent, Causes and Consequences of Land Cover Change What is the environment? What are biotic elements? What are abiotic elements? What is an ecosystem? What are the abiotic components of an ecosystem? The environment consists of all of the elements that are on the Earth’s surface and in its atmosphere. Elements of the environment that are living plants and animals. Elements of the environment that are non-living This includes changes to the Earth’s surface such as; agriculture, urban areas, transport, plantations and coastal changes. An ecosystem is a community of plants and animals in a non-living environment. It examines the interrelationships between biotic and abiotic components. Components include; isolation, atmosphere, soil, hydrology. Factors Affecting Climate What is climate? How does latitude affect climate? How does altitude affect climate? How does the position of mountain ranges The long-term prevalent weather conditions of an area that is determined by latitude, altitude, positioning of mountain ranges, proximity of the sea, presences of prevailing winds and nature of ocean currents. Near the equator the heating from the sun is more direct, in higher latitudes, heating is less concentrated. The higher the altitude, the lower the temperature drops. For every kilometre rise above sea level, temperature drops roughly 6 degrees Celsius Mountains force air to rise, once it rises it cools, this then forces it to condense precipitate. A rain shadow can then result on one side of the mountain.
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affect climate? How does proximity to the ocean affect climate? How do prevailing winds affect climate? How do ocean currents affect climate? Areas near the coast have a smaller temperature range. Inland areas have a greater temperature range. This is due to the ocean having a moderating effect, this is known as continentality. By night, the land is cooler than the sea, this produces a high- pressure system over the land. The reverse occurs during the day. Oceans affect the winds and their capacity to carry moisture. Air that is warmed by warmer ocean currents can carry more vapour. Once the air cools, there is increased rainfall due to greater concentration of water that was in the warmed air. Concepts What is the environment? What are natural biomes? What are anthropogenic biomes? What is land cover change? What is ecosystem structure? What is ecosystem dynamics? What is biodiversity loss? What is sustainability? The environment are all of the elements that are on the Earth’s surface and in its atmosphere. Natural biomes are communities of life forms adapted to a large area. Anthropogenic biomes are global ecosystem units that have sustained human interaction, where land cover has been changed to that favourable to humans. E.g. urban landscapes, agricultural lands.
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  • Fall '18
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