N2O emission factors of full-scale animal manure windrow composting in cold and warm seasons

被引：18

作者：

Zheng, Jiaxi ^{[1
,2
,3
]}

Liu, Jibao ^{[1
,3
]}

Han, Shenghui ^{[4
]}

Wang, Yawei ^{[1
,3
]}

Wei, Yuansong ^{[1
,2
,3
,5
]}

机构：

[1] Chinese Acad Sci, State Key Joint Lab Environm Simulat & Pollut Con, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Lab Water Pollut Control Technol, Beijing 100085, Peoples R China

[4] Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China

[5] Jiangxi Acad Sci, Inst Energy, Nanchang 330096, Jiangxi, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 316卷

关键词：

Animal manure windrow composting; Greenhouse gas; Nitrous oxide (N2O); Emission factor; Seasonal variation; GREENHOUSE-GAS EMISSIONS; NITROUS-OXIDE; PIG MANURE; GASEOUS EMISSIONS; SEWAGE-SLUDGE; SOLID-WASTE; MITIGATION; AMMONIA; TRANSFORMATION; MANAGEMENT;

D O I：

10.1016/j.biortech.2020.123905

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Emission of nitrous oxide (N2O) during animal manure composting is of great concern, and its emission factor (EF) is important for greenhouse gas emission inventory, while the EF is still uncertain due to limited on-site fullscale observations worldwide. In this study, N2O emissions were monitored during different seasons in a fullscale swine manure windrow composting with pile volume of about 76.5 m(3). The results showed that the maximum N2O flux during the cold season (CS) was 23 times higher than during the warm season (WS), significant differences in the contribution to direct N2O emissions were observed in three composting stages, and shaded-side N2O emission was higher than sunny-side emission. The direct N2O emission factors of animal manure composting were 0.0046, 0.0002 kg N2O-N/kgTN (dry weight) in the CS and WS, respectively. Scenario analysis results showed that windrow composting is a suitable manure management that emits less N2O than solid storage.

引用

页数：13

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