基于Meta分析的蚯蚓堆肥对堆肥质量和重金属的影响效应  

Effects of Vermicomposting on Compost Quality and Heavy Metals:A Meta-analysis

作　　者：姜继韶 侯睿 崔慧林 闫广轩 刘栋[2] JIANG Ji-shao;HOU Rui;CUI Hui-lin;YAN Guang-xuan;LIU Dong(Henan Key Laboratory for Environmental Pollution Control,Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control,Ministry of Education,School of Environment,Henan Normal University,Xinxiang 453007,China;Germplasm Bank of Wild Species,Yunnan Key Laboratory for Fungal Diversity and Green Development,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China)

机构地区：[1]河南师范大学环境学院,河南省环境污染控制重点实验室,黄淮水污染控制教育部重点实验室,新乡453007 [2]中国科学院昆明植物研究所,云南省真菌多样性与绿色发展重点实验室,中国西南野生生物种质资源库,昆明650201

出　　处：《环境科学》2024年第5期3047-3058,共12页Environmental Science

基　　金：国家自然科学基金项目(41805123,41807327)。

摘　　要：为了综合评估蚯蚓堆肥在不同控制条件下堆肥质量和重金属的转化规律,综述了109篇文献,通过Meta分析定量探讨了蚯蚓种类、预堆肥时间、通风方式、初始C/N、初始pH和初始含水率对提高蚯蚓堆肥质量和降低重金属毒性方面的影响.结果表明,以上6分组因子均显著影响堆肥的质量和重金属毒性.经过蚯蚓堆肥后,以下营养指标含量显著增加:NO_(3)^(-)−N(116.2%)、TN(29.1%)、TP(31.2%)和TK(15.0%);而NH_(4)^(+)-N含量(−14.8%)和C/N(−36.3%)显著降低;同时也显著降低了最终堆肥中Cu和Cr总量及其生物有效性.综合考虑不同分组因子对堆肥质量和重金属影响的显著程度,若堆肥以促进腐熟和富集营养元素为目的,则建议堆体物料的初始含水率调节为70%~80%、C/N为30~85和pH为6~7,并进行0~15 d的预堆肥,通风方式采用自然放置方法;若以削弱物料中重金属危害为主要目的,则建议调节物料初始含水率为50%~60%、C/N小于30和pH为7~8,不进行预堆肥,定时翻堆,引用Eudrilus eugeniae种类进行蚯蚓堆肥.In order to comprehensively evaluate the effects of vermicomposting on compost quality and the conversion of heavy metals under different control conditions,109 studies were reviewed.The effects of earthworm species,pre-compost time,ventilation methods,initial C/N,initial pH,and initial moisture of the raw materials on compost quality and the heavy metal toxicity were quantitatively discussed during the vermicomposting process through Meta-analysis.The results showed that the six subgroups of factors all showed obvious influences on the compost quality and heavy metal toxicity.After vermicomposting,the contents of NO_(3)^(-)-N(116.2%),TN(29.1%),TP(31.2%),and TK(15.0%)were significantly increased,whereas NH_(4)^(+)-N(−14.8%)and C/N(−36.3%)were significantly decreased.Meanwhile,the total amount of Cu and Cr of the final compost and their bioavailability were significantly reduced.Considering the influences of grouping factors on compost quality and heavy metals,it is recommended to adjust the initial moisture of pile materials to 70%-80%,C/N to 30-85,and pH to 6-7 and to conduct pre-composting for 0-15 d;additionally,vermicomposting should be naturally placed when the composting is aimed at promoting the compost quality.If the main purpose is to weaken the perniciousness of heavy metals in the raw material,it is recommended to adjust the initial moisture of the material to 50%-60%,C/N to less than 30,and pH to 7-8;to conduct no pre-compost;regularly turn the piles;and use the earthworm Eudrilus eugeniae for vermicomposting.

关 键 词：蚯蚓堆肥 META分析 堆肥质量 重金属 生物有效性 

分 类 号：X705[环境科学与工程—环境工程]