放牧的多年生草原可以与目前的牛肉产量相匹配,同时有助于缓解和适应气候

IF 2.3 4区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY Agricultural & Environmental Letters Pub Date : 2022-02-18 DOI:10.1002/ael2.20059
Randall D. Jackson
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引用次数: 16

摘要

美国的谷物成品牛肉系统产量很高,但对人类健康和福祉有许多负面影响,因为它污染地表水和地下水,加剧洪水,减少生物多样性,并导致气候变化。在不取代粮食生产的情况下,将整个美国谷物饲养的牛肉生产系统转移到草制品生产系统是可能的,并且在保守的土壤碳(C)变化估计下,将减少但相似的碳足迹,同时改善土壤健康、水质和生物多样性。对土壤碳积累的更乐观估计表明,该系统将导致大气中碳的显著下降。像这样的农业生态转型只受到我们的想象力和政策的限制,这些政策激励农业是为了公共利益,而不是少数人的利润。
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Grazed perennial grasslands can match current beef production while contributing to climate mitigation and adaptation

The U.S. grain-finished beef system is highly productive but has many negative consequences for human health and well-being because it pollutes surface and groundwaters, exacerbates flooding, reduces biodiversity, and contributes to climate change. Moving the entire U.S. grain-fed beef production system to a grass-finished system is possible without displacing food production and under conservative soil carbon (C) change estimates would result in a reduced but similar C footprint, while improving soil health, water quality, and biodiversity. More optimistic estimates for soil C accumulation indicate the system would result in significant atmospheric C drawdown. Agroecological transformation like this is limited only by our imagination and policies that incentivize agriculture for the public good rather than profits for a few.

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来源期刊
CiteScore
3.70
自引率
3.80%
发文量
28
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