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THEMATIC SLIDES. GRASSLAND Narok, Kenya Peanut Basin, Senegal Revane, Senegal Wyperfeld National Park, Australia Upper Green River, United States Credit:

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Presentation on theme: "THEMATIC SLIDES. GRASSLAND Narok, Kenya Peanut Basin, Senegal Revane, Senegal Wyperfeld National Park, Australia Upper Green River, United States Credit:"— Presentation transcript:

1 THEMATIC SLIDES

2 GRASSLAND

3 Narok, Kenya Peanut Basin, Senegal Revane, Senegal Wyperfeld National Park, Australia Upper Green River, United States Credit: World Biomes

4 GRASSLAND One fifth of the Earth's land surface is grassland - a biome found on every continent except Antarctica Sources: Earth Observatory; Grassland biomes can be found in the middle latitudes, in the interiors of continents Most of the world's natural grasslands have been converted to wheat or corn fields

5 Conversion of grasslands into agriculture Narok, Kenya 1975: The agricultural expansion is just beginning 2000: This image shows the degree to which farmlands have expanded

6 Farmlands abandoned for savannas Peanut Basin, Senegal Shows growing patchwork of savannas (greenish patches) 1979: Image shows farmland before being abandoned 1999: Hundreds of villages are scattered throughout the region to enjoy fallow and grazing lands

7 Impact of drought and over-grazing Revane, Senegal 1965: Ancient valleys cutting through gravelly plateaus, with extensive bushland vegetation 1999: The badland phenomenon spread extensively along the shallow valley slopes

8 Fire – a regular occurrence in Wyperfeld National Park, Australia 1973: Vegetation in the Wyperfeld National Park is mostly a rich green in the image 2000: The dark green areas are now mottled with light patches, areas where the ground is bare after a burn 2004: Significant additional burned areas

9 Changing landscape of Upper Green River, United States The landscape in 1989 Over 3000 wells (black/white dots) Have been approved in the basin, and development is occurring at a rapid rate

10 One Planet Many People: Atlas of Our Changing Environment Thank You! Free Downloads: Purchase: GRASSLAND


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