气候变化领域集成服务门户(CCPortal): Higher yields and more biodiversity on smaller farms

CCPortal

DOI	10.1038/s41893-021-00699-2
	Higher yields and more biodiversity on smaller farms
	Ricciardi V.; Mehrabi Z.; Wittman H.; James D.; Ramankutty N.
发表日期	2021
ISSN	2398-9629
起始页码	651
结束页码	657
卷号	4 期号:7
英文摘要	Small farms constitute most of the world’s farms and are a central focus of sustainable agricultural development. However, the relationship between farm size and production, profitability, biodiversity and greenhouse gas emissions remains contested. Here, we synthesize current knowledge through an evidence review and meta-analysis and show that smaller farms, on average, have higher yields and harbour greater crop and non-crop biodiversity at the farm and landscape scales than do larger farms. We find little conclusive evidence for differences in resource-use efficiency, greenhouse gas emission intensity and profits. Our findings highlight the importance of farm size in mediating some environmental and social outcomes relevant to sustainable development. We identify a series of research priorities to inform land- and market-based policies that affect smallholders globally. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Agricultural robots; Biodiversity; Crops; Greenhouse gases; Profitability; Sustainable development; Farm size; Higher yield; Landscape scale; Meta analysis; Research priorities; Resource use; Social outcomes; Sustainable agricultural development; Gas emissions
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249768
作者单位	School of Public Policy and Global Affairs, University of British Columbia, Vancouver, BC, Canada; Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada; Center for Sustainable Food Systems, University of British Columbia, Vancouver, BC, Canada
推荐引用方式 GB/T 7714	Ricciardi V.,Mehrabi Z.,Wittman H.,et al. Higher yields and more biodiversity on smaller farms[J],2021,4(7).
APA	Ricciardi V.,Mehrabi Z.,Wittman H.,James D.,&Ramankutty N..(2021).Higher yields and more biodiversity on smaller farms.Nature Sustainability,4(7).
MLA	Ricciardi V.,et al."Higher yields and more biodiversity on smaller farms".Nature Sustainability 4.7(2021).