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| Life Cycle Assessment of Different Treatment Modes of Pig Manure Based on Integrated Planting and Raising System in Intensive Agricultural Region |
| Received:March 24, 2015 |
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| KeyWord:life cycle assessment;intensive agricultural region;integrated planting and raising;pig manure treatment |
| Author Name | Affiliation | E-mail | | JIN Hong-mei | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing 210014, China
Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing 210014, China | | | CHANG Zhi-zhou | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing 210014, China | czhizhou@hotmail.com | | MA Yan | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing 210014, China | | | YAN Shao-hua | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China | | | SHENG Jing | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing 210014, China | | | HUANG Hong-ying | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing 210014, China | | | WU Hua-shan | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing 210014, China | | | SUN Guo-feng | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing 210014, China | |
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| Abstract: |
| In intensive agricultural region, the environmental impact potential of integrated planting and raising system has been unclear so far, which is limiting the application of integrated planting and raising technique. This study was to evaluate and compare the environmental impact potential of different treatment modes of pig manure from integrated planting and raising system using life cycle assessment(LCA)method. The treatment modes of pig manure included direct application(DA), composting and digestion-application(CDA) and composting-sale(CS). Since applying raising waste to planting fields reduced chemical fertilizer inputs, integrated planting and raising system showed positive impacts to the environment, as compared to CS. Total environmental impact potential was lower(2.03 kg eq per person per year) in CDA than in DA(3.02 kg eq per person per year). Furthermore, applications of manure to planting field had significant economic benefit. Manure treatment contributed to more than 50% of the total environmental impact potential, especially liquid slurry treatment. It thus suggests that enough farmland nearby an intensive raising farm is needed to handle animal manure. Integrated planting and raising system coupled with biogas production should be developed in the future. |
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