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| DOI | 10.1088/1748-9326/ab1a74 |
| Change of vegetation cover in the US-Mexico border region: Illegal activities or climatic variability? | |
| Wang H. | |
| 发表日期 | 2019 |
| ISSN | 17489318 |
| 卷号 | 14期号:5 |
| 英文摘要 | This study explores both human activities and climatic factors to examine the change of vegetation cover in the US Southwest border region - a region that is almost 2000 miles long and with rich natural resources but mostly a sensitive semi-arid/arid ecosystem. It is the first study that integrates large-scale remote-sensing data with multiple layers of socio-economic data and aims to inform critical policy issues related to natural resources management and border security enforcement in the region. A fixed effects panel data regression model is deployed to control for spatial heterogeneities and macro trends in vegetation cover distribution. The results show that both illegal and legal activities have statistically significant impacts on the border region vegetation cover between 2008-2017. Within a 3 mile buffer of the border, a one-standard-deviation increase in illegal border-crossings would lead the vegetation cover index (measured between 0-100) to decline by 4.1% of its standard deviation. A one-standard-deviation increase in border patrol agent staffing would lead the vegetation cover index to decline by 19.0% of its standard deviation. Employment density (a proxy for the dominant local economic activities) in the border county economies and growing season monthly mean temperature are also statistically significant in driving the change of vegetation cover. These findings provide important implications for natural resources management and border security policy in the region, as well as for the quality of life in the local border communities. © 2019 The Author(s). Published by IOP Publishing Ltd. |
| 英文关键词 | climate variability; illegal border-crossing; US-Mexico border region; vegetation cover |
| 语种 | 英语 |
| scopus关键词 | Crime; Information management; Public policy; Regression analysis; Remote sensing; Statistics; Vegetation; Border crossings; Border patrol agents; Climate variability; Climatic variability; Me-xico; Remote sensing data; Spatial heterogeneity; Vegetation cover; Natural resources management; border region; climate change; climate variation; economic activity; environmental factor; environmental policy; human activity; natural resource; remote sensing; resource management; vegetation cover; Mexico [North America]; United States |
| 来源期刊 | Environmental Research Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/154579 |
| 作者单位 | Department of Business and Technology Management, New Mexico Tech, United States |
| 推荐引用方式 GB/T 7714 | Wang H.. Change of vegetation cover in the US-Mexico border region: Illegal activities or climatic variability?[J],2019,14(5). |
| APA | Wang H..(2019).Change of vegetation cover in the US-Mexico border region: Illegal activities or climatic variability?.Environmental Research Letters,14(5). |
| MLA | Wang H.."Change of vegetation cover in the US-Mexico border region: Illegal activities or climatic variability?".Environmental Research Letters 14.5(2019). |
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