气候变化领域集成服务门户(CCPortal): Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China

CCPortal

DOI	10.1631/jzus.B1500154
	Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China
	Guan, Fa-chun; Sha, Zhi-peng; Zhang, Yu-yang; Wang, Jun-feng; Wang, Chao
通讯作者	Guan, FC (通讯作者)
发表日期	2016
ISSN	1673-1581
EISSN	1862-1783
起始页码	628
结束页码	639
卷号	17 期号:8
英文摘要	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.
关键词	ECONOMIC-EVALUATION INTEGRATED EMERGY RURAL HOUSEHOLD SUSTAINABILITY BIOGAS ENERGY WATER BIODIVERSITY GROWTH COUNTY
英文关键词	Home courtyard agriculture; Raising Geese in Corn Field; Conventional Corn Planting; Pea-Wheat Rotation; Emergy; Sustainability
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Research & Experimental Medicine
WOS类目	Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Medicine, Research & Experimental
WOS记录号	WOS:000381455000007
来源期刊	JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE B
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258651
推荐引用方式 GB/T 7714	Guan, Fa-chun,Sha, Zhi-peng,Zhang, Yu-yang,et al. Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China[J]. 中国科学院青藏高原研究所,2016,17(8).
APA	Guan, Fa-chun,Sha, Zhi-peng,Zhang, Yu-yang,Wang, Jun-feng,&Wang, Chao.(2016).Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China.JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE B,17(8).
MLA	Guan, Fa-chun,et al."Emergy assessment of three home courtyard agriculture production systems in Tibet Autonomous Region, China".JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE B 17.8(2016).