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基于县域单元的河南农民收入区域分异时空格局 被引量:18
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作者 赵文亮 王春涛 +2 位作者 陈文峰 孟德友 范况生 《地域研究与开发》 CSSCI 北大核心 2012年第4期56-60,共5页
依据河南1995—2009年县域农民人均纯收入统计数据,采用数理统计和地统计分析法对农民收入水平区域差异时空格局演变态势进行深入探讨。研究表明,1995—2009年间河南县域农民人均纯收入水平绝对差异持续增大,而相对差异呈阶段性波动增... 依据河南1995—2009年县域农民人均纯收入统计数据,采用数理统计和地统计分析法对农民收入水平区域差异时空格局演变态势进行深入探讨。研究表明,1995—2009年间河南县域农民人均纯收入水平绝对差异持续增大,而相对差异呈阶段性波动增大态势;县域农民收入水平表现出较强的空间集聚态势,整体上呈以豫中和豫西北县市为中心,以豫北、豫东、豫东南和豫西南地区县市为外缘的核心-边缘型空间格局,西北和东南部县市间差距在拉大,两极分化趋势增强。由此认为,加快提高豫东和豫东南农业县域的农民收入水平是推进全省区域协调发展的关键。 展开更多
关键词 农民收入 区域差异 县域单元 时空格局 河南省
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交通基础设施建设与中国地区居民收入差异——基于省级面板数据的分析 被引量:6
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作者 王守坤 《华东经济管理》 CSSCI 2012年第6期60-64,共5页
文章通过理论分析认为地区交通基础设施建设对于居民人均收入差异的作用方向并不是显而易见的。为了合理判断交通基础设施建设对于我国地区居民人均收入差异的综合影响效应,文章针对1980-2010年的分省面板数据并采用系统GMM估计方法进... 文章通过理论分析认为地区交通基础设施建设对于居民人均收入差异的作用方向并不是显而易见的。为了合理判断交通基础设施建设对于我国地区居民人均收入差异的综合影响效应,文章针对1980-2010年的分省面板数据并采用系统GMM估计方法进行了回归。结果显示,对于各省区城镇居民人均收入与全部居民人均收入而言,地区交通基础设施建设水平的提高可以显著降低其地区差异。然而,对于农村居民人均收入而言,地区交通基础设施建设水平只有在达到一定门槛值之后才可能会降低其地区差异。对于这种在农村居民收入差异中出现的非线性效应,文章从我国经济分权与政治集权体制视角给出了阐释。 展开更多
关键词 地区交通基础设施建设 地区居民收入差异 GMM回归
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云南省财政支农支出及其绩效的实证研究
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作者 王健康 高祖博 李思瑾 《中国经济与管理科学》 2009年第7期104-108,共5页
云南财政支农支出规模对农民增收的影响不显著,但其支出结构却促进了农民收入水平的提高。由于财政支出的目标偏差,云南财政支农支出促使城乡差距缩小的功能不明显,使得其社会福利功能没能得以体现。提出相应的五个方面的对策措施。
关键词 财政支农支出 农民收入水平 城乡收入差距 多元回归分析 GRANGER因果检验
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Diversifying Clean Water: An Examination of Drinking Water Quality and Social Disparities in Michigan
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作者 Tyra Blair Ryan Beni Sujata Guha 《Journal of Geoscience and Environment Protection》 2022年第5期125-138,共14页
Water is one of the most essential resources required to sustain life. However, it could be detrimental to the health of those without access to water that is properly treated. Although the Safe Drinking Water Act of ... Water is one of the most essential resources required to sustain life. However, it could be detrimental to the health of those without access to water that is properly treated. Although the Safe Drinking Water Act of 1974 set regulations to protect citizens from naturally occurring and man-made contaminants, some people are still without clean and safe water, which is speculated to be because of their race. This research examines the disproportionality of available clean water provided by government sources in Michigan and its correlation with race and household income. In the study, it has been found that one of the leading causes of water contamination is industrial activity, with the automobile industry being responsible for approximately 300 million tons of lead contamination in water, and that the manufacturing company’s locations mostly centered in minority and low-income areas. Lower income cities, such as Hamtramck and Benton Harbor, have an average of 14.8 drinking water standard violations with the highest being 99 total violations, while higher income cities, like Novi and Bloomfield hills, have an average of 4 violations. Cities, like Flint and Detroit, which have a higher minority population, are 10 times more likely to have a water standard violation, and the minority population is proportionally related to the possibility of industrial manufacturing being located in those areas. These communities also face a higher risk of birth defects, developmental issues in children, and organ failure in adults, due to continuous exposure to water contaminants. Race as a direct causation could not be proven, but there are links to direct correlation through historical redlining and housing trends. 展开更多
关键词 Water Quality Social disparity MICHIGAN CONTAMINANTS household income income per capita Environmental Justice Automobile Industry
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Puerto Rico’s Water Supply: An Investigation of the Levels of Trihalomethanes and Other Contaminants
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作者 Yaritza Jones Wendy Wilburn +1 位作者 Sujata Guha Ryan Beni 《Journal of Geoscience and Environment Protection》 2023年第8期1-21,共12页
The US Commonwealth of Puerto Rico is comprised of 143 islands, atolls, cays, and islets. Of the 143 localities, only 3 islands are inhabited: The mainland (often referenced as Puerto Rico), Culebra, and Vieques. To p... The US Commonwealth of Puerto Rico is comprised of 143 islands, atolls, cays, and islets. Of the 143 localities, only 3 islands are inhabited: The mainland (often referenced as Puerto Rico), Culebra, and Vieques. To properly analyze the water supply quality, the mainland will be the focal point for examining environmental and social injustices. Puerto Rico is a racially diverse but ethnically homogenous territory, with most of the commonwealth living below the poverty level. Access to clean water sources is always tenuous in Puerto Rico. Over 70 percent of the island is served by water, violating US health standards. However, the recent hurricanes made the situation even more detrimental. According to data reported between January 2015 and March 2018 by the Consumer Confidence Report (CCR), 97 percent of the population of Puerto Rico utilizes a common drinking water system with one or more recent violations of the Safe Drinking Water Act for its testing requirements for lead and copper levels. The amounts found were far higher than any US state, meaning that virtually everyone on the island gets water from systems that violated testing or reporting requirements. In this study, we have collected and analyzed the levels of trihalomethanes (THMs), haloacetic acids (HAAs), copper, lead, and total organic compounds (TOCs) in drinking water providing systems in Puerto Rico and compared them with the recommended levels of contaminants provided by the US Environmental Protection Agency (EPA) guidelines. Many of these reported contaminants can have serious and detrimental health effects after prolonged exposure to higher concentrations of the contaminants found in the drinking water sources of Puerto Rico. 展开更多
关键词 Water Quality Social disparity Puerto Rico CONTAMINANTS household income income per capita Environmental Justice Hurricane Maria
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