CLC number: F062.2; S344.9
On-line Access: 2016-08-04
Received: 2015-06-24
Revision Accepted: 2015-11-09
Crosschecked: 2016-07-13
Cited: 0
Clicked: 4283
Fa-chun Guan, Zhi-peng Sha, Yu-yang Zhang, Jun-feng Wang, Chao Wang. Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China[J]. Journal of Zhejiang University Science B, 2016, 17(8): 628-639.
@article{title="Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China",
author="Fa-chun Guan, Zhi-peng Sha, Yu-yang Zhang, Jun-feng Wang, Chao Wang",
journal="Journal of Zhejiang University Science B",
volume="17",
number="8",
pages="628-639",
year="2016",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B1500154"
}
%0 Journal Article
%T Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China
%A Fa-chun Guan
%A Zhi-peng Sha
%A Yu-yang Zhang
%A Jun-feng Wang
%A Chao Wang
%J Journal of Zhejiang University SCIENCE B
%V 17
%N 8
%P 628-639
%@ 1673-1581
%D 2016
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1500154
TY - JOUR
T1 - Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China
A1 - Fa-chun Guan
A1 - Zhi-peng Sha
A1 - Yu-yang Zhang
A1 - Jun-feng Wang
A1 - Chao Wang
J0 - Journal of Zhejiang University Science B
VL - 17
IS - 8
SP - 628
EP - 639
%@ 1673-1581
Y1 - 2016
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1500154
Abstract: home courtyard agriculture is an important model of agricultural production on the Tibetan plateau. Because of the sensitive and fragile plateau environment, it needs to have optimal performance characteristics, including high sustainability, low environmental pressure, and high economic benefit. emergy analysis is a promising tool for evaluation of the environmental-economic performance of these production systems. In this study, emergy analysis was used to evaluate three courtyard agricultural production models: raising Geese in Corn Fields (RGICF), conventional Corn Planting (CCP), and pea-Wheat Rotation (PWR). The results showed that the RGICF model produced greater economic benefits, and had higher sustainability, lower environmental pressure, and higher product safety than the CCP and PWR models. The emergy yield ratio (EYR) and emergy self-support ratio (ESR) of RGICF were 0.66 and 0.11, respectively, lower than those of the CCP production model, and 0.99 and 0.08, respectively, lower than those of the PWR production model. The impact of RGICF (1.45) on the environment was lower than that of CCP (2.26) and PWR (2.46). The emergy sustainable indices (ESIs) of RGICF were 1.07 and 1.02 times higher than those of CCP and PWR, respectively. With regard to the emergy index of product safety (EIPS), RGICF had a higher safety index than those of CCP and PWR. Overall, our results suggest that the RGICF model is advantageous and provides higher environmental benefits than the CCP and PWR systems.
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