Department of Agriculture, Faculty of Science & Agriculture, University of Zululand, KwaDlangezwa 3886, South Africa.
Department of Geography, School of Agriculture, Earth & Environmental Science, University of KwaZulu-Natal, Westville 54001, South Africa.
Int J Environ Res Public Health. 2020 Feb 12;17(4):1158. doi: 10.3390/ijerph17041158.
Waste management has become pertinent in urban regions, along with rapid population growth. The current ways of managing waste, such as refuse collection and recycling, are failing to minimise waste in cities. With urban populations growing worldwide, there is the challenge of increased pressure to import food from rural areas. Urban agriculture not only presents an opportunity to explore other means of sustainable food production, but for managing organic waste in cities. However, this opportunity is not taken advantage of. Besides, there is a challenge of mixed reactions from urban planners and policymakers concerning the challenges and benefits presented by using organic waste in urban agriculture. The current paper explores the perceived challenges and opportunities for organic waste utilisation and management through urban agriculture in the Durban South Basin in eThekwini Municipality in KwaZulu-Natal (KZN) Province of South Africa. It is anticipated that this information will be of use to the eThekwini Municipality, policymakers, researchers, urban agriculture initiatives, households and relevant stakeholders in the study areas and similar contexts globally. Two hundred (200) households involved in any urban farming activity and ten (10) key informants (six (6) staff from the Cleaning and Solid Waste Unit of the eThekwini Municipality and four (4) from the urban agricultural initiative) were selected using convenient sampling. Descriptive statistics and inductive thematic analysis were used to analyse data. The significant perceived challenges and risks associated with the utilisation of organic waste through urban agriculture included lack of a supporting policy, climatic variation, lack of land tenure rights, soil contamination and food safety concerns. Qualitative data further showed that the difficulty in segregating waste, water scarcity, difficulty in accessing inputs, limited transportation of organic waste, inadequate handling and treatment of organic waste, and being a health hazard were some important challenges. On the other hand, the significant perceived benefits associated with the utilisation of organic waste through urban agriculture were enhanced food and nutrition security, and opportunities for business incubation. Other important benefits established through qualitative data were an improved market expansion for farmers and improved productivity. Overall, despite the perceived challenges and risks, there is an opportunity to manage organic waste through urban agriculture. It is imperative for an integrated policy encompassing the food, climate and waste management to be developed to support this strategy. All stakeholders-the government, municipal authorities and urban agricultural initiatives should also, guided by the policy, support urban farmers, for example, through pieces of training on how to properly manage and recycle organic waste, land distribution, inputs availability and water usage rights among other things.
废物管理在人口快速增长的城市地区变得至关重要。目前的废物管理方式,如垃圾收集和回收,无法在城市中最大限度地减少废物。随着全球城市人口的增长,从农村地区进口粮食的压力也在增加。城市农业不仅为探索可持续粮食生产的其他方法提供了机会,也为城市中的有机废物管理提供了机会。然而,这种机会并没有被利用。此外,城市规划者和政策制定者对在城市农业中使用有机废物所带来的挑战和好处存在混合反应,这也是一个挑战。本文通过南非夸祖鲁-纳塔尔省德班南部流域埃特肯尼市的案例研究,探讨了通过城市农业利用和管理有机废物的感知挑战和机遇。预计这些信息将对埃特肯尼市、政策制定者、研究人员、城市农业倡议、家庭以及全球研究区域和类似背景下的相关利益相关者有用。通过便利抽样选择了 200 户从事任何城市农业活动的家庭和 10 名关键信息提供者(埃特肯尼市清洁和固体废物股的 6 名工作人员和城市农业倡议的 4 名工作人员)。采用描述性统计和归纳主题分析对数据进行分析。通过城市农业利用有机废物面临的重大感知挑战和风险包括缺乏支持政策、气候变化、缺乏土地保有权、土壤污染和食品安全问题。定性数据进一步表明,废物分类困难、水资源短缺、投入获取困难、有机废物运输有限、有机废物处理不当、对健康构成危害等是一些重要的挑战。另一方面,通过城市农业利用有机废物的重大感知效益包括增强粮食和营养安全以及创业机会。通过定性数据确定的其他重要效益包括农民的市场扩张和生产力提高。总体而言,尽管存在感知挑战和风险,但通过城市农业管理有机废物仍有机会。必须制定一项涵盖粮食、气候和废物管理的综合政策来支持这一战略。政府、市政当局和城市农业倡议等所有利益相关者也应该在政策的指导下,支持城市农民,例如,通过提供关于如何正确管理和回收有机废物、土地分配、投入供应和水权使用等方面的培训。