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首页> 外文期刊>Ecological engineering: The Journal of Ecotechnology >Assessment of ecosystem services and dis-services of an agro-ecosystem based on extended emergy framework: A case study of Luancheng county, North China
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Assessment of ecosystem services and dis-services of an agro-ecosystem based on extended emergy framework: A case study of Luancheng county, North China

机译：基于扩展能源框架的农业生态系统生态系统服务与生态服务价值评估-以华北栾城县为例

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An agricultural ecosystem provides provisioning, regulating and supporting services for humans. At the same time, it consumes the resources of other ecosystems, including the investment of economic resources and can generate useless or harmful services, collectively called dis-services. Here, we built a framework for assessing agricultural ecosystem services and dis-services based on emergy analysis of Luancheng County, China. We analysed the inputs and outputs of the agricultural ecosystem from the three aspects of consumption of resources, ecosystem services and ecosystem dis-services and explored the variations in inputs and outputs from 1984 to 2008. We then proposed composite indexes for measuring the sustainable development of the agro-ecosystem. Our analysis showed that the agricultural ecosystem consumed a lot of resources, especially the nonrenewable ones; provisioning services were the largest services and provisioning dis-services were the largest dis-services. Both provisioning services and dis-services increased yearly as purchased nonrenewable inputs increased. The overall evaluation of the Luancheng agricultural ecosystem showed it to be a serious consumer system and thus not developing sustainably. The farming community should take steps, such as controlling excess inorganic fertilizer input, increasing organic fertilizer use and improving water and fertilizer use efficiency to ensure sustainability. (C) 2015 Elsevier B.V. All rights reserved.
机译：农业生态系统为人类提供调配，调节和支持服务。同时，它消耗了其他生态系统的资源，包括对经济资源的投资，并可能产生无用或有害的服务，统称为服务丧失。在此，我们基于栾城县的能值分析，建立了评估农业生态系统服务和服务丧失的框架。我们从资源消耗，生态系统服务和生态系统服务三个方面分析了农业生态系统的投入和产出，并探讨了1984年至2008年投入和产出的变化。然后提出了用于衡量农业可持续发展的综合指标。农业生态系统。我们的分析表明，农业生态系统消耗了大量资源，尤其是不可再生资源。供应服务是最大的服务，供应服务是最大的服务。随着购买的不可再生投入的增加，供应服务和解除服务均逐年增加。对栾城县农业生态系统的总体评价表明，它是一个严重的消费体系，因此不能持续发展。农业社区应采取措施，例如控制过量的无机肥料投入，增加有机肥料的使用以及提高水和肥料的使用效率，以确保可持续性。 （C）2015 Elsevier B.V.保留所有权利。

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