Emergy Analysis on Two Typical Peach Cultivation Modes at Villages in Fujian

LUO Xu-hui; DU Li-wang; CHEN Hua; LIU Cen-wei; Gordon Wuchye Price; LIU Peng-hu; ZHANG Jian-ming; WENG Bo-qi

doi:10.19303/j.issn.1008-0384.2020.01.015

Volume 35 Issue 1

Jan. 2020

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Article Navigation > Fujian Journal of Agricultural Sciences > 2020 > 35(1): 111-116

LUO X H, DU L W, CHEN H, et al. Emergy Analysis on Two Typical Peach Cultivation Modes at Villages in Fujian [J]. Fujian Journal of Agricultural Sciences，2020，35（1）：111−116 doi: 10.19303/j.issn.1008-0384.2020.01.015

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LUO X H, DU L W, CHEN H, et al. Emergy Analysis on Two Typical Peach Cultivation Modes at Villages in Fujian [J]. Fujian Journal of Agricultural Sciences，2020，35（1）：111−116 doi: 10.19303/j.issn.1008-0384.2020.01.015

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Emergy Analysis on Two Typical Peach Cultivation Modes at Villages in Fujian

doi: 10.19303/j.issn.1008-0384.2020.01.015

1.
Institute of Agricultural Ecology, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian　350013, China
2.
Fujian Academy of Agricultural Sciences, Fuzhou, Fujian　350003, China
3.
Fujian Key Laboratory on Ecological Processes of Hilly Agriculture in Red Soil Region, Fuzhou, Fujian　350013, China
4.
Department of Engineering, Faculty of Agriculture, Dalhousie University　B2N5E3, Canada
5.
China National Engineering Research Center for Juncao Technology, Fuzhou, Fujian　350002, China
6.
College of Ecology and Resources Engineering, Wuyi University, Wuyisan, Fujian　353400, China

Received Date: 2019-10-31
Rev Recd Date: 2019-12-16
Publish Date: 2020-01-01

Abstract

Abstract

Objective An analysis on balancing the ecological and economic benefits of peach orchard operations was conducted at the poverty-stricken areas in Ningde, Fujian Province to evaluate the grass-growing vs. ground-clearing practices for sustainable peach cultivation at a village scale. Method A method of analyzing emergy consumption was applied to compare the grass-growing(located at Laidun Village, Gutian County) and ground-clearing(located in Hutou Village, Fu’an County) modes practiced at peach orchards, in Fujian Province, by calculating indices of total emergy input (T), emergy self-sufficiency ratio (ESR), emergy investment ration (EIR), emergy yield ratio (EYR), environmental load ratio (ELR), emergy sustainable index (ESI), and emergy feedback rate (FYE) . Result The 2017–2018 indicators of the grass-growing and ground-clearing modes, respectively, were T at 1.16×10¹⁶ and 2.36×10¹⁶ sej·hm⁻², ESR at 0.166 and 0.102; EIR at 5.030 and 8.823; EYR at 1.199 and 1.113; ELR at 0.425 and 0.410; ESI at 2.822 and 2.716; and, FYE at 0.072 and 0.026. The ground-clearing peach cultivation at Hutou employed greater inputs on both labor and organic/chemical fertilizers to resulted in a slightly lower ELR than its counterpart. In contrast, at Laidun, where grass-growing and utilization of methane were applied, led to a significantly higher FYE than at Hutou owing to a reduced demand on chemical fertilizer and emergy inputs by 57.2%. In addition, a significant 46.32% saving on emergy consumption per 10 000 RMB output of the crop was realized at Laidun. Conclusion Management of the peach orchard through grass-growing, combined with using methane liquid, has merits as an efficient and ecologically sustainable approach in the hilly villages of Ningde City.
- orchard,
- grass-growing,
- emergy,
- ecological and economic system,
- evaluation

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References(9)

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