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脲酶抑制剂对生物固体堆肥过程中酶活性和真菌群落的影响。

Effects of urease inhibitors on enzymatic activities and fungal communities during the biosolids composting.

作者信息

Jiang Jishao, Wang Yang, Yu Dou, Li Jingyu, Han Jin, Cui Huilin, Cheng Ronghui, Yao Xing, Yan Guangxuan, Li Yunbei, Zhu Guifen

机构信息

School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control Xinxiang Henan 453007 PR China

出版信息

RSC Adv. 2021 Nov 23;11(60):37667-37676. doi: 10.1039/d1ra07628k.

DOI:10.1039/d1ra07628k
PMID:35498097
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9043792/
Abstract

This study evaluated the influences of urease inhibitors (UIs) on nitrogen conversion, enzyme activities, and fungal communities during aerobic composting. Results showed that UI addition reduced NH emissions by 22.2% and 21.5% and increased the total nitrogen (TN) content by 9.7% and 14.3% for the U1 (0.5% UI of the dry weight of the mixture) and U2 (1% UI of the dry weight of the mixture) treatments, respectively. The addition of UI inhibited the enzyme activity during thermophilic stage while increased enzyme activity during the cool and maturity stages. Ascomycota, Basidiomycota and unclassified fungi were the main phyla, and Ascomycota increased significantly during the maturity period. Network analysis showed that , , , , , and were the main "connecting" genera. The redundancy analysis (RDA) showed that the fungal community was mainly influenced by temperature, DOC, pH, and urease. The results suggested that UI was an effective additive for nitrogen conservation and the increase of enzyme activity reduce nitrogen loss and promote enzyme activity during biosolids composting.

摘要

本研究评估了脲酶抑制剂（UIs）在好氧堆肥过程中对氮转化、酶活性和真菌群落的影响。结果表明，对于U1（混合物干重的0.5% UI）和U2（混合物干重的1% UI）处理，添加UI分别使NH排放量降低了22.2%和21.5%，并使总氮（TN）含量分别提高了9.7%和14.3%。添加UI在嗜热阶段抑制了酶活性，而在冷却和成熟阶段提高了酶活性。子囊菌门、担子菌门和未分类真菌是主要门类，子囊菌门在成熟期显著增加。网络分析表明， 、 、 、 、 和 是主要的“连接”属。冗余分析（RDA）表明，真菌群落主要受温度、溶解有机碳（DOC）、pH值和脲酶的影响。结果表明，UI是生物固体堆肥过程中一种有效的氮素保存添加剂，增加酶活性可减少氮素损失并促进酶活性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/af78960b32b3/d1ra07628k-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/7ad41a9ed207/d1ra07628k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/8c1683850f6c/d1ra07628k-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/66d5117d78c6/d1ra07628k-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/7aaf9c3d4a02/d1ra07628k-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/89e143116cdb/d1ra07628k-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/af78960b32b3/d1ra07628k-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/7ad41a9ed207/d1ra07628k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/8c1683850f6c/d1ra07628k-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/66d5117d78c6/d1ra07628k-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/7aaf9c3d4a02/d1ra07628k-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/89e143116cdb/d1ra07628k-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bdf/9043792/af78960b32b3/d1ra07628k-f6.jpg

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本文引用的文献

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NO emission factors of full-scale animal manure windrow composting in cold and warm seasons.在寒冷和温暖季节，没有全规模动物粪便条垛堆肥的排放因子。
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Insights into the functionality of fungal community during the large scale aerobic co-composting process of swine manure and rice straw.
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