干旱区生态环境知识资源中心(Arid): A New Raster-Based Metric to Measure Relative Food Availability in Rural Areas A Case Study in Southeastern North Carolina

Arid

DOI	10.1353/sgo.2017.0015
	A New Raster-Based Metric to Measure Relative Food Availability in Rural Areas A Case Study in Southeastern North Carolina
	Mulrooney, Timothy; McGinn, Chris; Branch, Benjamin; Madumere, Chibuike; Ifediora, Byron
通讯作者	Mulrooney, T
来源期刊	SOUTHEASTERN GEOGRAPHER
ISSN	0038-366X
EISSN	1549-6929
出版年	2017
卷号	57 期号:2 页码:151-178
英文摘要	The study of food deserts and food swamps explore access to food sources, the overabundance of health ailments directly related to obesity and poor diet, as well as the relationships between the two. There are various ways to quantitatively measure tenets of food deserts and food swamps, such as food availability, using GIS (Geographic Information - Systems). Absolute metrics attached to density (healthy food outlets per square mile), linear (miles) or time (minutes) units used to measure food availability are being replaced by relative metrics that comparatively express units against each other. We developed a way to measure relative food availability using a pixel-based relative travel-time index (PRTI). The PRTI measures travel-time to the nearest healthy food source versus that to the nearest unhealthy food source at the pixel level. The result is a high-resolution surface that can analyzed on its own or agglomerated for comparison's sakes. In areas with lower relative availability of healthy foods, preliminary analysis has shown differences between socio-economic variables in rural regions compared to a high availability counterpart. Distinct differences between the PRTI and other metrics used to measure food availability are - evident. These results can lead to an increased - understanding of food-needy areas not constrained by man-made boundaries at scales necessary to facilitate necessary interventions.
英文关键词	Food Availability Food Balance Food Environment Geographic Information Systems
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000403703500005
WOS关键词	VEGETABLE CONSUMPTION ; POSITIONAL ACCURACY ; HEALTHY FOOD ; TRAVEL-TIME ; ACCESS ; DESERTS ; ENVIRONMENT ; FRUIT ; ACCESSIBILITY ; VECTOR
WOS类目	Geography
WOS研究方向	Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332143
作者单位	[Mulrooney, Timothy; McGinn, Chris; Madumere, Chibuike; Ifediora, Byron] North Carolina Cent Univ, Dept Environm Earth & Geospatial Sci, 1801 Fayetteville St, Durham, NC 27707 USA; [Branch, Benjamin] North Carolina Cent Univ, Sch Lib & Informat Sci, 1801 Fayetteville St, Durham, NC 27707 USA
推荐引用方式 GB/T 7714	Mulrooney, Timothy,McGinn, Chris,Branch, Benjamin,et al. A New Raster-Based Metric to Measure Relative Food Availability in Rural Areas A Case Study in Southeastern North Carolina[J],2017,57(2):151-178.
APA	Mulrooney, Timothy,McGinn, Chris,Branch, Benjamin,Madumere, Chibuike,&Ifediora, Byron.(2017).A New Raster-Based Metric to Measure Relative Food Availability in Rural Areas A Case Study in Southeastern North Carolina.SOUTHEASTERN GEOGRAPHER,57(2),151-178.
MLA	Mulrooney, Timothy,et al."A New Raster-Based Metric to Measure Relative Food Availability in Rural Areas A Case Study in Southeastern North Carolina".SOUTHEASTERN GEOGRAPHER 57.2(2017):151-178.