Mapping the spatial dimension of food insecurity using GIS-based indicators: A case of Western Kenya

IF 5.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Security Pub Date : 2022-08-13 DOI:10.1007/s12571-022-01308-6

Mwehe Mathenge, Ben G. J. S. Sonneveld, Jacqueline E. W. Broerse

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引用次数: 4

Abstract

Food insecurity elimination is a major focus of the Sustainable Development Goals and addresses one of the most pressing needs in developing countries. With the increasing incidence of food insecurity, poverty, and inequalities, there is a need for realignment of agriculture that aims to empower especially the rural poor smallholders by increasing productivity to improving food security conditions. Repositioning the agricultural sector should avoid general statements about production improvement, instead, it should tailor to location-specific recommendations that fully acknowledge the local spatial diversity of the natural resource base that largely determines production potentials under current low input agriculture. This paper aims to deconstruct the complex and multidimensional aspect of food insecurity and provides policymakers with an approach for mapping the spatial dimension of food insecurity. Using a set of GIS-based indicators, and a small-area approach, we combine Principal Component Analysis and GIS spatial analysis to construct one composite index and four individual indices based on the four dimensions of food security (access, availability, stability, and utilization) to map the spatial dimension of food insecurity in Vihiga County, Kenya. Data were collected by the use of a geocoded household survey questionnaire. The results reveal the existence of a clear and profound spatial disparity of food insecurity. Mapping food insecurity using individual dimension indices provides a more detailed picture of food insecurity as compared to the single composite index. Spatially disaggregated data, a small area approach, and GIS-based indicators prove valuable for mapping local-level causative factors of household food insecurity. Effective policy approaches to combat food insecurity inequalities should integrate spatially targeted interventions for each dimension of food insecurity.

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利用基于gis的指标绘制粮食不安全的空间维度:以肯尼亚西部为例

消除粮食不安全是可持续发展目标的一个主要重点，解决了发展中国家最紧迫的需求之一。随着粮食不安全、贫困和不平等现象的发生率日益增加，有必要重新调整农业，旨在通过提高生产力来改善粮食安全条件，从而赋予特别是农村贫困小农权力。重新定位农业部门应避免笼统地说要改善生产，而应根据具体地点提出建议，充分承认当地自然资源基础的空间多样性，这在很大程度上决定了当前低投入农业的生产潜力。本文旨在解构粮食不安全的复杂和多维方面，为决策者提供一种绘制粮食不安全空间维度的方法。本文采用一套基于GIS的指标和小区域方法，结合主成分分析和GIS空间分析，构建了基于粮食安全四个维度(可及性、可获得性、稳定性和利用率)的1个综合指数和4个单项指数，绘制了肯尼亚维希加县粮食不安全空间维度图。使用地理编码的住户调查问卷收集数据。结果表明，粮食不安全存在明显而深刻的空间差异。与单一的综合指数相比，使用单个维度指数绘制粮食不安全状况图可以更详细地了解粮食不安全状况。空间分类数据、小区域方法和基于地理信息系统的指标证明对绘制家庭粮食不安全的地方一级致病因素很有价值。消除粮食不安全不平等现象的有效政策方法应针对粮食不安全的每个层面整合有空间针对性的干预措施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Food Security FOOD SCIENCE & TECHNOLOGY-

CiteScore

14.00

自引率

6.00%

发文量

审稿时长

>12 weeks

期刊介绍： Food Security is a wide audience, interdisciplinary, international journal dedicated to the procurement, access (economic and physical), and quality of food, in all its dimensions. Scales range from the individual to communities, and to the world food system. We strive to publish high-quality scientific articles, where quality includes, but is not limited to, the quality and clarity of text, and the validity of methods and approaches. Food Security is the initiative of a distinguished international group of scientists from different disciplines who hold a deep concern for the challenge of global food security, together with a vision of the power of shared knowledge as a means of meeting that challenge. To address the challenge of global food security, the journal seeks to address the constraints - physical, biological and socio-economic - which not only limit food production but also the ability of people to access a healthy diet. From this perspective, the journal covers the following areas: Global food needs: the mismatch between population and the ability to provide adequate nutrition Global food potential and global food production Natural constraints to satisfying global food needs: § Climate, climate variability, and climate change § Desertification and flooding § Natural disasters § Soils, soil quality and threats to soils, edaphic and other abiotic constraints to production § Biotic constraints to production, pathogens, pests, and weeds in their effects on sustainable production The sociological contexts of food production, access, quality, and consumption. Nutrition, food quality and food safety. Socio-political factors that impinge on the ability to satisfy global food needs: § Land, agricultural and food policy § International relations and trade § Access to food § Financial policy § Wars and ethnic unrest Research policies and priorities to ensure food security in its various dimensions.