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Creative Agriculture in Response to Limited Water Lithograph Answers Which regions look like they've been cultivated recently? Which look older? In the picture of Australia, there is a small circular area of agriculture south of the lakes. The lighter colored rectangles in that area look more recent since there is no dark foliage to cover the terrain. The darker rectangles look to be older since plants have grown there and obscure the normal orange-brown color of the soil. What evidence do you see of arid conditions in these areas? 'Arid' refers to soil that is dry for more than half of the year and whose topsoil is not moist for more than 90 consecutive days. The absence of abundant foliage in areas away from irrigation is one indication of arid conditions. Any plants would be small so as to lessen the amount of water loss. Also, the orange brown coloration of the soil and surrounding terrain that is apart from the areas of irrigation indicates very dry weather and aridity. View the lithograph (pdf). |
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