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一根油条两张大饼
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作者 付元 《课堂内外(小学版)》 2009年第4期35-36,共2页
说起我呀,可真是个马大哈,每次数学考试都拿不了满分,不是不会,而是因为粗心。这不,又要考试了,我听别人说,考试前吃一根油条和两张大饼,准考100分。我半信半疑,但决定试一试。
关键词 小学 作文 语文教学 《一根油条两张大饼》 付元
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Payments for Ecosystem Services: Market Mechanism or Diversified Modes?
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作者 刘艳红 郭朝先 《Journal of Resources and Ecology》 CSCD 2015年第6期420-426,共7页
Payment for ecosystem services is a concept of environmental protection and method of environmental management that has "purchasing conservation" as a major feature and has grown around the world since the 1990 s. I... Payment for ecosystem services is a concept of environmental protection and method of environmental management that has "purchasing conservation" as a major feature and has grown around the world since the 1990 s. It is stressed by the school of environmental economics that as a voluntary mechanism of exchange between ecological service providers and demanders, payments for ecosystem services can help to increase inputs and improve efficiency. Ecological economics holds that the ecological system and the complexity of the policy environment restrict the functional space of market mechanisms. The negative influence of the objective of giving priority to efficiency on environmental protection and social fairness cannot be neglected; therefore, the exchange mechanism is just one type of eco-compensation models. Here, we posit that payments for ecosystem services is a good tool for environmental protection and increases inputs and efficiency. Although payment for ecosystem services is confronted with challenges in application, it is playing an increasingly important role in the field of ecological services with a relatively high degree of commodification. Payments for ecosystem services can also increase the cost effectiveness of publicly managed environmental projects with the cooperation of other policy tools. 展开更多
关键词 payments for ecosystem services market mechanism diversified modes environmental economics ecological economics
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