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Uncommonly severe droughts brought on by global climate changes have led to forest-eating wildfires from Australia to Indonesia, but nowhere more acutely than in the Amazon.
出自-2013年6月阅读原文
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Trees need more water as temperatures rise, but the prolonged droughts have robbed them of moisture, making whole forests easily cleared of trees and turned into farmland
出自-2013年6月阅读原文
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The picture worsens with each round of El Nino, the unusually warm currents in the Pacific Ocean that drive up temperatures and invariably presage (预示) droughts and fires in the rain forest.
出自-2013年6月阅读原文
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"The yield is never going to be high," Farrant says, so these plants will be targeted not at Iowa farmers trying to squeeze more cash out of high-yield fields, but subsistence farmers who need help to survive a drought like the present one in South Africa
2018年6月六级真题（第一套）阅读 Section B
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It has consequences: South Africa's ongoing drought—the worst in three decades—will cost at least a quarter of its com crop this year.
2018年6月六级真题（第一套）阅读 Section B
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Some plants store reserves of water to see them through a drought; others send roots deep down to subsurface water supplies.
2018年6月六级真题（第一套）阅读 Section B
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They may be able to handle a drought of some length, and many people use the term "drought tolerant" to describe such plants, but they never actually stop needing to consume water, so Farrant prefers to call them drought resistant.
2018年6月六级真题（第一套）阅读 Section B