Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (32): 81-86.doi: 10.11924/j.issn.1000-6850.casb16100015

Special Issue: 现代农业发展与乡村振兴 水稻 园艺

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Energy Analysis of Circular Agriculture Mode of ‘Rice/Grass-Beef-Organic Fertilizer-Vegetable/Tea ’

  

  • Received:2016-10-08 Revised:2017-11-06 Accepted:2016-12-14 Online:2017-11-27 Published:2017-11-27

Abstract: The paper aims to explore the energy flow law of circular agriculture mode of“rice/grass-beeforganic fertilizer-vegetable/tea”, analyze its input and output by the emergy analysis method in Jinjing of Changsha and discuss the emergy self-support ratio, environmental load rate and sustainable development index. The results showed that resource utilization rate was 49.00% and the environmental resources made great contribution to agriculture; environment load ratio was 1.14 which indicated that the production process of the system had less pressure on environment; net emergy yield ratio and sustainable development index of the whole system were 7.41 and 6.49, it illustrated that the production efficiency of the system was high, and full of vitality and development potential. The cyclic utilization of cow dung and watermifoil could reduce environmental pressure, improve the sustainable development index of the agricultural ecosystem and realize the positive circle and sustainable development of agriculture.

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