含水率与C/N耦合对驴粪堆肥过程中温室气体排放的影响

	含水率与C/N耦合对驴粪堆肥过程中温室气体排放的影响
其他题名	Effects of Different Water Content and C/N Coupling on Greenhouse Gas Emissions during Donkey Dung Composting
	陈辉 1; 王巨媛 2; 田晓飞 3; 王倩 4; 徐欣 5; 刘晓 6; 邓莹莹 7; 冯文丽 8; 翟胜 9
	2019
发表期刊	生态环境学报
ISSN	1674-5906
卷号	28 期号:2 页码:341-347
摘要	Greenhouse gas emission reduction has been one of the research hotspots under the context of global climate change. The effects of moisture content and C/N coupling mode on reducing greenhouse gas emission and global warming potential (GWP) were studied in this paper., so as to find the suitable moisture content and C/N coupling mode for reducing greenhouse gas emission, and provide the references or reasons for greenhouse gas emission reduction in manure composting. The six donkey manure composting treatments, such as W_1R_1(water content: 55%; C/N: 25:1), W_1R_2 (water content: 55%; C/N: 30:1), W_1R_3 (water content: 55%; C/N: 35:1), W_2R_1 (water content: 60%; C/N: 25:1), W_2R_1 (water content: 60%; C/N: 30:1) and W_2R_3 (water content: 60%; C/N: 35:1) were set to research greenhouse gas emissions and global warming potential by using the static chamber-gas chromatography. The results showed that the manure temperature increased in the early stage and decreased in the mid and later stage, but the opposite trend happened to the oxygen content, so the manure temperature and oxygen content showed a significantly negative correlationship. Lower C/N ratio and water content were conducive to the manure temperature increasing. The N_2O, CH_4, and CO_2 emission fluxes mainly increased in early period and decreased in mid and later stage, and the biggest emission fluxes of N_2O, CH_4, and CO_2 appeared around 24 d, 8 d and 16 d after manure composting, respectively. The CH_4 and CO_2 emission fluxes positively correlated with the manure temperature among the six composting modes, but the significantly negative relationship happened to CH_4 emission flux with the manure oxygen content. GWP decreased in sequence of W_2R_1>W_2R_3>W_1R_2>W_1R_1>W_2R_2>W_1R_3. The cumulative CO_2 emission amount of each treatment made the greatest contribution to GWP, the contribution proportion was more than 66.30%, N_2O contribution proportion varied from 2.07% to 32.45%, and CH_4contribution proportion was less than 1.54%. Considering the manure composting temperature and global warming effect, the W_1R_3 composting mode should be recommended.
其他摘要	在全球气候变化背景下温室气体减排已成为当前研究热点之一。该研究通过研究含水率和C/N耦合对驴粪堆肥过程中的温室气体排放和全球增温潜势的影响,从中筛选出温室气体减排的含水率和C/N耦合模式,为实现堆肥过程中温室气体减排提供依据和参考。以驴粪堆肥为对象,采用静态箱-气相色谱法研究了不同C/N和含水率耦合,即W_1R_1(含水率:55%;C/N:25:1)、W_1R_2(含水率:55%;C/N:30:1)、W_1R_3(含水率:55%;C/N:35:1)、W_2R_1(含水率:60%; C/N:25:1)、W_2R_1(含水率:60%;C/N:30:1)、W_2R_3(含水率:60%;C/N:35:1)6种驴粪堆肥模式对温室气体排放和全球增温潜势的影响。结果表明,在堆肥过程中,堆温呈先升后降趋势,含氧量呈先降后升趋势,堆温和含氧量呈极显著负相关关系;低C/N、低含水率有利于堆温的升高。N_2O、CH_4、CO_2排放通量总体呈先升后降趋势,排放峰值分别出现在堆肥后24、8、16 d左右。6种堆肥模式下CH_4、CO_2排放通量与堆温呈极显著正相关,CH_4排放通量与含氧量呈极显著负相关。全球增温潜势大小顺序为W_2R_1>W_2R_3>W_1R_2>W_1R_1>W_2R_2>W_1R_3。各处理均以CO_2累积排放量对全球增温潜势贡献最大,达到66.30%以上,N_2O贡献为2.07%-32.45%,CH_4贡献低于1.54%。综合考虑堆温和全球增温效应,建议采用W_1R_3堆肥模式。
关键词	驴粪堆肥 C/N 含水率温室气体排放通量全球增温潜势 donkey dung composting C/N water content greenhouse gases emission flux global warming potential
收录类别	CSCD
语种	中文
WOS关键词	Environmental Sciences & Ecology
WOS研究方向	Science & Technology
WOS类目	ENVIRONMENTAL SCIENCES
CSCD记录号	CSCD:6465273
引用统计	被引频次：5[CSCD] [CSCD记录]
文献类型	期刊论文
专题	任务一_子任务一循证社会科学证据集成任务一
作者单位	1.聊城大学环境与规划学院, 聊城, 山东 252059, 中国 2.聊城大学农学院, 聊城, 山东 252059, 中国 3.聊城大学环境与规划学院, 聊城, 山东 252059, 中国 4.聊城大学环境与规划学院, 聊城, 山东 252059, 中国 5.聊城大学环境与规划学院, 聊城, 山东 252059, 中国 6.聊城大学环境与规划学院, 聊城, 山东 252059, 中国 7.聊城大学环境与规划学院, 聊城, 山东 252059, 中国 8.聊城大学环境与规划学院, 聊城, 山东 252059, 中国 9.聊城大学环境与规划学院, 聊城, 山东 252059, 中国
推荐引用方式 GB/T 7714	陈辉,王巨媛,田晓飞,等. 含水率与C/N耦合对驴粪堆肥过程中温室气体排放的影响[J]. 生态环境学报,2019,28(2):341-347.
APA	陈辉.,王巨媛.,田晓飞.,王倩.,徐欣.,...&翟胜.(2019).含水率与C/N耦合对驴粪堆肥过程中温室气体排放的影响.生态环境学报,28(2),341-347.
MLA	陈辉,et al."含水率与C/N耦合对驴粪堆肥过程中温室气体排放的影响".生态环境学报 28.2(2019):341-347.