Crop diversification protects fields from extreme weather and boosts productivity
Varying crop rotations and keeping the soil constantly covered with vegetation help protect crops against droughts and floods, in addition to increasing productivity. This technique was tested in Rio Grande do Sul state, Brazil, by researchers from the Center for Carbon Research in Tropical Agriculture (CCARBON) at the University of São Paulo (USP).
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该研究用13个商业化农场、三个旱涝极端年份的实测数据表明，多样化覆盖作物系统产量可高出州均76%且年际波动小，而传统单一轮作仅高8%但波动达33%–39%，为评估保护性耕作的气候韧性提供了可对照的量化边界。
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