03 Dec '17, 11pm

Agricultural Fields and Flat Lands, Brazil

An astronaut aboard the International Space Station focused a camera on the geometric patterns of farms on some plateaus in northeast Brazil. Here the fields, mainly soybeans and maize, have been planted right up to the edges of the small plateaus. The edges are ragged lines marked by cliffs. The many flat plateau surfaces of southern Maranhão State are ideal for the wheeled machinery of mechanized agriculture. In fact, the capital city of the region, Balsas, is known as the “capital of mechanized agriculture.” The steep-sided river valleys—such as that of the Balsas River—lie fully 200 meters (600 feet) below the plateaus. Numerous finger-like tributaries are eroding and creating smaller valleys, which are poor landscapes for mechanized farming. One result is that the forests around the valleys remain in their pristine form, even though southern Maranhão is part of Brazil...

Full article: https://earthobservatory.nasa.gov/IOTD/view.php?id=91360&...

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Agricultural Fields and Flat Lands, Brazil

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An astronaut aboard the International Space Station focused a camera on the geometric patterns of farms on some plateaus i...

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