Surveying the Evidence on Sustainable Intensification Strategies for Smallholder Agricultural Systems

IF 15.5 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Annual Review of Environment and Resources Pub Date : 2023-04-26 DOI:10.1146/annurev-environ-112320-093911

Meha Jain, C. Barrett, D. Solomon, Kate Ghezzi-Kopel

{"title":"Surveying the Evidence on Sustainable Intensification Strategies for Smallholder Agricultural Systems","authors":"Meha Jain, C. Barrett, D. Solomon, Kate Ghezzi-Kopel","doi":"10.1146/annurev-environ-112320-093911","DOIUrl":null,"url":null,"abstract":"Food demand is projected to increase significantly over the coming decades. Sustainable intensification (SI) is essential to meet this demand. SI is particularly important in smallholder systems, yet to date it remains unclear what the most promising SI strategies are to increase food production and farmer incomes at scale. We review the literature on SI to identify the most promising strategies, as manifest in replicated findings of favorable causal impacts. Adoption of improved cultivars generated the largest, most consistent, positive yield and economic outcomes. Two agroecological practices, push-pull systems and the System of Rice Intensification, also repeatedly led to large positive impacts. These strategies have considerable potential to scale to reach more than 50% of smallholder farmers who plant staple crops. Significant barriers to adoption remain, however, and identifying ways to overcome barriers to scale these successful strategies will be critical to meeting Sustainable Development Goals 1 and 2 by 2030. Expected final online publication date for the Annual Review of Environment and Resources, Volume 48 is October 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":7982,"journal":{"name":"Annual Review of Environment and Resources","volume":"38 1","pages":""},"PeriodicalIF":15.5000,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annual Review of Environment and Resources","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1146/annurev-environ-112320-093911","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 5

Abstract

Food demand is projected to increase significantly over the coming decades. Sustainable intensification (SI) is essential to meet this demand. SI is particularly important in smallholder systems, yet to date it remains unclear what the most promising SI strategies are to increase food production and farmer incomes at scale. We review the literature on SI to identify the most promising strategies, as manifest in replicated findings of favorable causal impacts. Adoption of improved cultivars generated the largest, most consistent, positive yield and economic outcomes. Two agroecological practices, push-pull systems and the System of Rice Intensification, also repeatedly led to large positive impacts. These strategies have considerable potential to scale to reach more than 50% of smallholder farmers who plant staple crops. Significant barriers to adoption remain, however, and identifying ways to overcome barriers to scale these successful strategies will be critical to meeting Sustainable Development Goals 1 and 2 by 2030. Expected final online publication date for the Annual Review of Environment and Resources, Volume 48 is October 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

查看原文本刊更多论文

小农农业系统可持续集约化战略证据调查

预计未来几十年粮食需求将显著增加。可持续集约化(SI)对于满足这一需求至关重要。SI在小农系统中尤为重要，但迄今为止，对于大规模增加粮食产量和农民收入最有希望的SI战略是什么仍不清楚。我们回顾了关于SI的文献，以确定最有希望的策略，正如在有利的因果影响的重复发现中所体现的那样。改良品种的采用产生了最大的、最稳定的、积极的产量和经济效益。两种农业生态实践，推拉系统和水稻集约化系统，也反复产生了巨大的积极影响。这些战略具有相当大的推广潜力，可惠及种植主要作物的50%以上的小农。然而，采用这些战略的重大障碍仍然存在，确定克服障碍的方法以扩大这些成功战略的规模，对于到2030年实现可持续发展目标1和2至关重要。《环境与资源年鉴》第48卷预计最终在线出版日期为2023年10月。修订后的估计数请参阅http://www.annualreviews.org/page/journal/pubdates。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Annual Review of Environment and Resources 环境科学-环境科学

CiteScore

24.10

自引率

1.80%

发文量

审稿时长

>24 weeks

期刊介绍： The Annual Review of Environment and Resources, established in 1976, offers authoritative reviews on key environmental science and engineering topics. It covers various subjects, including ecology, conservation science, water and energy resources, atmosphere, oceans, climate change, agriculture, living resources, and the human dimensions of resource use and global change. The journal's recent transition from gated to open access through Annual Reviews' Subscribe to Open program, with all articles published under a CC BY license, enhances the dissemination of knowledge in the field.