文献类型： 外文期刊

第一作者： Zhan-biao Wang;;Ji-zong Zhang

作者： Zhan-biao Wang;Ji-zong Zhang;Li-feng Zhang

作者机构：

关键词： carbon footprint; greenhouse gas emissions; low-carbon agriculture; climate change

期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：3.638； 五年影响因子：3.802 ）

ISSN： 0022-5142

年卷期： 2019 年 99 卷 11 期

页码：

收录情况： SCI

摘要： BACKGROUND The development of low-carbon agriculture is promising for mitigating climate change. This study used adjustments to the planting structure in Zhangbei County, China, as an example to evaluate whether the carbon footprint per unit of economic benefit is a suitable indicator of low-carbon agriculture and to determine if low-carbon agriculture is not necessarily low-input non-intensive agriculture. RESULTS The results showed that total greenhouse gas emissions increased; therefore, the adjustments to the planting structure were ostensibly not a low-carbon process. However, if we obtain the same economic benefit as the actual distribution of the planting industry by adopting the scenario of planting only grain crops, then the annual greenhouse gas emissions would be 1608.00 x 10(3) t CO(2)eq, and 5769.94 x 10(3) ha of farmland would be required. However, if we adopt the scenario of planting only vegetable crops, then only 82.52 x 10(3) ha of farmland would be required, and the annual greenhouse gas emissions would be 323.52 x 10(3) t CO(2)eq. CONCLUSIONS These results indicated that the carbon footprint per unit of economic benefit is a suitable indicator to assess agricultural sustainability and that intensive agriculture with high input and high output is a form of low-carbon agriculture if the carbon footprint per unit of economic benefit is low. (c) 2019 Society of Chemical Industry

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