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The emergy analysis of southern China agro-ecosystem and its relation with its regional sustainable development

机译：中国南方农业生态系统能值分析及其与区域可持续发展的关系

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摘要

The agricultural economy of Fujian Province has grown rapidly since the 21st century. In order to evaluate the impact of economic growth on the sustainability of agro-ecosystems, emergy analysis was used to study the dynamics of agro-ecosystem and its sustainable development capacity in Fujian Province from 2000 to 2016. The results showed that the total emergy input and output of agro-ecosystem in Fujian Province presented an upward trend from 2000 to 2016. Environmental loading ratio (ELR), emergy investment ratio (EIR) and per capita emergy used (EUPP) all showed a growth trend. The ELR and EIR are significantly positively correlated with GDP per capita. Emergy self-sufficiency ratio (EYR), emergy dollar ratio (EDR), emergy sustainability index (ESI) and emergy index for sustainable development (EISD) showed a downward trend from 2000 to 2016. The results suggested that agro-ecosystem of Fujian Province is a sustainable development system, but the sustainability of system is low and gradually declining. In the future, the sustainable development of agro-ecosystem in Fujian Province can be promoted by replacing traditional fertilizers with organic fertilizers, using clean energy to generate electricity, developing ecological agriculture, increasing investment in science and technology, and controlling population growth.
机译：自21世纪以来，福建省的农业经济迅速发展。为了评价经济增长对农业生态系统可持续性的影响，利用能值分析方法研究了福建省2000-2016年农业生态系统的动态及其可持续发展能力。从2000年到2016年，福建省农业生态系统的产量呈上升趋势。环境负荷率（ELR），能值投资率（EIR）和人均使用能值（EUPP）均呈增长趋势。 ELR和EIR与人均GDP显着正相关。能值自给率（EYR），能值美元比（EDR），能值可持续性指数（ESI）和可持续发展能值指数（EISD）在2000年至2016年期间呈下降趋势。结果表明，福建省农业生态系统是一个可持续发展的系统，但是系统的可持续性很低，并且逐渐下降。未来，福建省农业生态系统的可持续发展可以通过用有机肥料替代传统肥料，使用清洁能源发电，发展生态农业，增加对科学技术的投资以及控制人口增长来促进。

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