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气候变化对南非西开普省初级农业、水源及粮食安全的影响

Impact of climate change on primary agriculture, water sources and food security in Western Cape, South Africa.

作者信息

Zwane Elliot M

机构信息

Department of Agricultural Extension and Animal Production, Centre of Rural Community Empowerment, University of Limpopo, Sovenga, South Africa.

出版信息

Jamba. 2019 Apr 17;11(1):562. doi: 10.4102/jamba.v11i1.562. eCollection 2019.

Abstract

Climate change is undoubtedly one of the biggest crises that humanity is facing today. There is a robust scientific consensus that human-induced climate change is occurring not only in the Western Cape but around the world. The objective of this research was to assess the impact of climate change on primary agriculture and food security. The paper is based on a literature review. A variety of literature reviews, for example, 11 government reports and 21 journal articles including experience outside Western Cape, were consulted to enrich the local experience regarding the impact of climate change on agriculture. The results indicated that many dams had low water levels (40%) during 2016/2017, which reduced crop yields including grapes. Droughts, which affected both smallholder and commercial farmers, are now a common phenomenon. Livestock production has declined over time, with small stock, the beef and dairy industry being the most affected. The paper concludes by highlighting climate adaptation and mitigation interventions and strategies for both crops and livestock production in the Western Cape. The major recommendations included scaling up on the use of organic matter to avoid burning and creating gas emissions to the atmosphere, the effective use of livestock manure and the use of appropriate and adaptable seed varieties, managing the manure of the livestock to assist in mulching to reduce water loss through evaporation and using adaptable seeds. climate change; impact; mitigation; primary agriculture; adaptation; drought.

摘要

气候变化无疑是人类当今面临的最大危机之一。科学界已形成有力共识,即人为导致的气候变化不仅在西开普省发生,而且在全球范围内都在发生。本研究的目的是评估气候变化对初级农业和粮食安全的影响。本文基于文献综述。查阅了各种文献综述,例如11份政府报告和21篇期刊文章,包括西开普省以外的经验,以丰富有关气候变化对农业影响的本地经验。结果表明,在2016/2017年期间,许多大坝水位较低(40%),这降低了包括葡萄在内的作物产量。干旱影响了小农户和商业农户,现在已成为一种常见现象。随着时间的推移,畜牧业产量下降,其中小型牲畜、牛肉和乳制品行业受影响最大。本文最后强调了西开普省作物和畜牧业生产的气候适应和缓解干预措施及策略。主要建议包括扩大有机物质的使用以避免焚烧并向大气排放气体,有效利用牲畜粪便,使用合适且适应性强的种子品种,管理牲畜粪便以协助覆盖,减少水分蒸发造成的损失,并使用适应性强的种子。气候变化;影响;缓解;初级农业;适应;干旱

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