福建省规模化养猪场温室气体减排效益评估

王成己; 李艳春; 刘岑薇; 王义祥; 黄毅斌

doi:10.19303/j.issn.1008-0384.2019.04.014

福建省规模化养猪场温室气体减排效益评估

doi: 10.19303/j.issn.1008-0384.2019.04.014

1.
福建省农业科学院农业生态研究所/农业部福州农业环境科学观测实验站, 福建福州 350013
2.
福建省农业科学院土壤肥料研究所, 福建福州 350013

基金项目:

福建省科技计划项目——省属公益类科研院所基本科研专项 2015R1017-7

福建省发展改革委项目 [2016]166

福建省发展改革委项目 [2012]341

详细信息

作者简介:
王成己(1972-), 男, 博士, 副研究员, 研究方向:土壤碳循环与全球变化(E-mail:ecowcj@163.com)

通讯作者:
黄毅斌(1964-), 男, 博士, 研究员, 研究方向:农业生态(E-mail:ecohyb@163.com)

中图分类号: X713
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- 被引次数: 0
出版历程
- 收稿日期: 2018-12-07
- 修回日期: 2019-03-02
- 刊出日期: 2019-04-28

Reduction of Greenhouse Gas Emissions at Large Pig Farms in Fujian

1.
Institute of Agricultural Ecology, Fujian Academy of Agricultural Sciences/Fuzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, Fuzhou, Fujian 350013, China
2.
Institute of Soil Fertilizer, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China

摘要

摘要: 目的评估福建省规模化养猪场利用沼气工程处理粪便产生的温室气体减排效益，以推动规模化养猪场沼气工程建设，实现生猪养殖业清洁生产。方法根据国际通用的温室气体减排量计算方法，以2010年和2015年为例，计算福建省规模化养猪场粪便资源量及沼气生产潜力，评估粪便资源全部用于沼气工程建设所带来的减排效益。结果 2010年和2015年福建省规模化养猪场排泄物干物质总量分别为169.93万t和163.29万t，其产沼气潜力分别为7.14亿m³和6.86亿m³。假设规模化养猪场粪便所产沼气全部用于替代薪柴，则分别可替代薪柴245.42万t和235.84万t，减少CO₂排放量分别为268.74万t和258.25万t；假设规模化养猪场粪便所产沼气全部用于替代煤炭，则分别可替代煤炭130.85万t和125.74万t，减少CO₂排放量110.89万t和106.56万t。如果养猪场粪便全部用于沼气工程，则分别可减少CH₄排放3.59万t和3.45万t。结论沼气工程在有效处理禽畜粪便的同时生产了优质燃料，沼气替代传统能源减少了CO₂排放，禽畜粪便厌氧消化减少了CH₄排放，带来了显著的社会经济及环境效益。
- 规模化养猪场 /
- 沼气工程 /
- 二氧化碳 /
- 甲烷 /
- 减排效益
Abstract: Objective Reduction on greenhouse gas (GHG) emissions at large pig farms by treatment converting fecal waste to biogas for an environmentally friendly hog industry in Fujian was reviewed. Method Based on the internationally accepted method for calculating GHG emission reduction and the 2010 and 2015 data, the amounts of manure and biogas production at large pig farms in the province were obtained for the analysis. The estimated benefits brought about by the emission reduction through the practice were discussed. Result The total amount of excreta dry matters from the pig farms was 1.699 3 million tons in 2010 and 1.632 9 million tons in 2015 representing the production potentials of 714 million m³ and 686 million m³ biogas, respectively. If the biogas produced were to be used to replace firewood, it would have been 2.454 2 million t and 2.358 4 million t of firewood saved for the two years, respectively. And the resulting CO₂ emissions reduced would have amounted to 2.687 4 million t in 2010 and 2.582 5 million t in 2015. The same presumed biogas productions would translate to be 1 308 500 t and 1 257 400 t of coal, or 1 108 900 t and 1 065 600 t of CO₂ emissions for the years of 2010 and 2015, respectively. By converting pig manure to biogas, the CH₄ emissions could have been reduced by 35 900 t in 2010 and 34 500 t in 2015. Conclusion Using biogas produced from livestock waste could conceivably generate a high quality fuel to replace the traditional energy sources and effectively reduce CO₂ emissions. Anaerobic digestion of the waste material also mitigated CH₄ emissions resulting in significant social, economic and environmental benefits.
- large pig farm /
- biogas project /
- carbon dioxide /
- methane /
- emission reduction benefits

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表 1 猪粪便的干物质与含水量

Table 1. Dry matters and moisture contents in pig feces

(单位/%)
粪便种类 Faeces species	干物质 Dry matter	水分 Water	合计 Total
猪粪Pig manure	20	80	100
猪尿Pig urine	0.4	99.6	100

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表 2 福建省生猪饲养规模情况

Table 2. Scale of pig farms in Fujian

年存栏数 Annual stock/head	场(户)数 Number of farms		存栏数 Stock/(×10⁴ head)		占总存栏数比例 Percentage of total stock/%
年存栏数 Annual stock/head	2010年	2015年	2010年	2015年	2010年	2015年
1-49	557627	165673	241.66	75.50	18.99	7.08
50-499	46491	25015	364.59	219.88	28.65	20.62
≥500	7473	7311	666.32	770.78	52.36	72.30
合计Total	611591	197999	1272.57	1066.16	100.00	100.00

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表 3 福建省规模化养猪场粪便资源量及沼气生产潜力

Table 3. Fecal wastes and potential biogas production at large pig farms in Fujian

年份 Year	排泄物干物质总量 Total dry matter amount of excreta/ (×10⁴ t)	产沼气潜力 Biogas potential /(×10⁸ m³)
2010	169.93	7.14
2015	163.29	6.86

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表 4 CO₂减排效益

Table 4. Benefits by reducing CO₂ emission

年份 Year	可替代薪柴Alternative firewood (×10⁴ t)		可替代煤炭Alternative coal (×10⁴ t)
年份 Year	实物量 Physical quantity	CO₂减排量 CO₂ emission reductions	实物量 Physical quantity	CO₂减排量 CO₂ emission reductions
2010	245.42	268.74	130.85	110.89
2015	235.84	258.25	125.74	106.56

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表 5 甲烷减排效益

Table 5. Benefits by reducing CH₄ emission

年份 Year	CH₄减排量 CH₄ emission reductions/ (×10⁴ t)	CO₂当量 CO₂ equivalent /(×10⁴ t)
2010	3.59	75.39
2015	3.45	72.45
注：CH₄折合成CO₂当量的系数是21。Note: The coefficient of CH₄ converted into CO₂ equivalent is 21.

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