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环境质量现状评价实用方法研究
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作者 傅仲逑 《中国环境管理干部学院学报》 CAS 1997年第Z2期32-37,共6页
环境质量是衡量环境优劣的标志,环境污染的程度一般以环境质量评价来衡量。那么,环境质量状况如何来评价呢?本文详细介绍了三大类模型方法对环境质量现状进行综合评价。
关键词 环境质量 综合评价 指数模型 分级聚类模型 环境影响分析模型
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Farmers' Perceived Impact of Fair Trade: The Case of Costa Rica
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作者 C. Zanasi C. Rota S. Bontempi G. Panini M. Setti 《Journal of Environmental Science and Engineering》 2010年第10期78-84,共7页
The perceived usefulness of Fair Trade influences both its effectiveness and farmers' long-term participation. The aim of this paper is to measure the perceived economic, social and environmental impact of Fair Trade... The perceived usefulness of Fair Trade influences both its effectiveness and farmers' long-term participation. The aim of this paper is to measure the perceived economic, social and environmental impact of Fair Trade by farmers in Costa Rica. One hundred farmers were interviewed, and their perceived change in living and working conditions due to Fair Trade participation was measured through a t-test analysis. The sample characters' influence on the perceived change was also measured, adopting a regression model and a t-test. The results showed a positive perception of the impact of Fair Trade, with a particularly strong perceived improvement in the farmers' technical, economic and managerial skills. There was relatively less perceived change in the environmental, educational and sanitary conditions. The results showed the need for Fair Trade to better adjust its strategy to the expectations of the farmers' communities. 展开更多
关键词 Fair Trade IMPACT Costa Rica technology acceptance model small farmers
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