气候变化领域集成服务门户(CCPortal): Crushing combined with high-frequency turning can promote material degradation of sheep manure compost on the Qinghai-Tibet Plateau by improving the microbial metabolic function

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DOI	10.1016/j.jece.2023.109535
	Crushing combined with high-frequency turning can promote material degradation of sheep manure compost on the Qinghai-Tibet Plateau by improving the microbial metabolic function
	Cai, Rui; Cui, Xinyu; Cao, Xiaohui; Jiang, Xin; Wang, Rongze; Xu, Chuncheng
发表日期	2023
ISSN	2213-2929
EISSN	2213-3437
卷号	11 期号:2
英文摘要	Large sheep farms on the Qinghai Tibet Plateau (QTP) can produce a large amount of sheep manure annually. However, the sheep manure in this area has hard particles and high lignocellulose content, which leads to low composting efficiency and uneven internal and external fermentation. This study aimed to explore the effect of crushing pretreatment on the organic components, antibiotics degradation, and the microbial metabolic functions of sheep manure composting in the QTP. The experiment set up the turning treatments once every 2 d (CT2) or once every 4 d (CT4) after crushing pretreatment. A protocol of no crushing and turning once every 4 d was used as the control (CK). The results showed that compared with CK, CT2 could increase the organic matter degradation rate by 22.5 %, increase the humus content and germination index by 18.9 % and 14.3 %, while CT4 had no obvious effect. CT2 can effectively promote the elimination of tetracycline and beta-lactam antibiotics and increase their elimination rate by 7.9-19.3 %. CT2 increased the abundance functional genes involved in carbohydrate metabolism, amino acid metabolism, energy metabolism, cellulolysis, xylanolysis, and chitinolysis of bacteria, and increased the functional genes abundance of carbohydrates, proteins, lipids, and nucleotide metabolism in fungi. Furthermore, several functional enzymes, such as protease and cellulase showed the highest activity in CT2. In conclusion, crushing pretreatment and turning once every two days have the best composting effect.
关键词	Crushing pretreatment High -frequency turning Sheep manure compost Qinghai -Tibet Plateau Material degradation Microbial metabolic function
英文关键词	PIG MANURE; HUMIC SUBSTANCE; BIOCHAR; COMMUNITY; SLUDGE
WOS研究方向	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000997836600001
来源期刊	JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282998
作者单位	China Agricultural University
推荐引用方式 GB/T 7714	Cai, Rui,Cui, Xinyu,Cao, Xiaohui,et al. Crushing combined with high-frequency turning can promote material degradation of sheep manure compost on the Qinghai-Tibet Plateau by improving the microbial metabolic function[J],2023,11(2).
APA	Cai, Rui,Cui, Xinyu,Cao, Xiaohui,Jiang, Xin,Wang, Rongze,&Xu, Chuncheng.(2023).Crushing combined with high-frequency turning can promote material degradation of sheep manure compost on the Qinghai-Tibet Plateau by improving the microbial metabolic function.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,11(2).
MLA	Cai, Rui,et al."Crushing combined with high-frequency turning can promote material degradation of sheep manure compost on the Qinghai-Tibet Plateau by improving the microbial metabolic function".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 11.2(2023).