有机肥对高速公路建设损毁土壤的微生物学性状及酶活性的影响

发布时间：2018-03-12 17:02

本文选题：有机肥　切入点：高速公路　出处：《华南农业大学学报》2017年06期 　论文类型：期刊论文

【摘要】：【目的】研究不同施肥处理短期内对高速公路工程建设损毁赤红壤的微生物学性状及酶活性的影响。【方法】利用温室盆栽类芦Neyraudia reynaudiana试验,以高速公路工程建设损毁的赤红壤为对照(CK),设计3个处理,分别为与蚓粪等NPK量的化肥(HF)、牛粪(NF)和蚓粪(YF),采用主成分分析法研究不同处理对土壤微生物学性状及土壤酶活性的影响。【结果】施NF处理较施HF处理的土壤微生物量碳、微生物量氮、土壤呼吸、代谢熵、细菌、真菌和放线菌数量分别显著提高了70%、96%、1 239%、699%、300%、1 155%和272%,土壤转化酶、脲酶、过氧化氢酶、酸性磷酸酶、β 葡萄糖苷酶、乙酰氨基葡萄糖苷酶、多酚氧化酶和过氧化物酶活性分别显著提高了61%、37%、36%、119%、259%、1 973%、175%和550%,YF处理较施HF处理的相应微生物指标分别显著提高了80%、130%、1 458%、773%、295%、324%和285%,相应土壤酶活性分别显著提高了66%、40%、52%、128%、302%、1 641%、182%和428%(P0.05)。【结论】短期内,施NF和YF的有机肥处理比施HF处理更有助于改善土壤微生物学性状,提高土壤酶活性,提升工程建设损毁土壤的综合质量;施NF和施YF处理对土壤微生物学性状和酶活性的影响差异不大。添加有机肥是快速修复工程建设损毁土壤的有效方式。
[Abstract]:[objective] to study the effect of different fertilization treatments on microbiological characters and enzyme activity of damaged lateritic soil in highway engineering construction in short term. [methods] Neyraudia reynaudiana test was used in greenhouse. Taking the damaged lateritic red soil in expressway construction as the control, three treatments were designed. The effects of different treatments on soil microbiological properties and soil enzyme activity were studied by principal component analysis (PCA). [results] soil microbial biomass carbon of NF treatment was higher than that of HF treatment. Microbial biomass nitrogen, soil respiration, metabolic entropy, bacteria, fungi and actinomycetes were significantly increased by 70%, respectively, and the amount of microbial biomass nitrogen, soil respiration, metabolic entropy, bacteria, fungi and actinomycetes were significantly increased by 1 155% and 272% soil invertase, urease, catalase, acid phosphatase, 尾 -glucosidase, acetaminoglycosidase, acetaminoglycosidase, respectively. The activities of polyphenol oxidase and peroxidase increased significantly, respectively. The activity of polyphenol oxidase and peroxidase increased significantly, respectively. The activity of polyphenol oxidase and peroxidase increased significantly, respectively. The activity of soil enzymes increased significantly, respectively. The corresponding enzyme activities in the soil increased significantly, respectively, by 25992% and 55035%, respectively, and the corresponding microbiological indexes of treatment with YF were significantly higher than those treated with HF. [conclusion] in the short term, the activity of enzymes in the corresponding soil increased significantly, and the activities of the enzymes in the corresponding soil increased significantly, and the activity of the enzymes in the corresponding soil increased significantly, and the activity of the enzymes in the corresponding soil increased significantly, and the corresponding microbe indexes were increased by 18.2% and 42828P 0.05%, respectively. [conclusion] in the short term, there will be a significant increase in the activity of the enzymes in the soil. Application of NF and YF was more helpful to improve soil microbiological properties, soil enzyme activity and the comprehensive quality of damaged soil in engineering construction than HF treatment. The effects of NF and YF on soil microbiological properties and enzyme activity were not significant, and organic fertilizer was an effective way to quickly repair damaged soil.
【作者单位】：华南农业大学公共管理学院;农业部耕地保育重点实验室/国土资源部建设用地再开发重点实验室/广东省土地利用与整治重点实验室;华南农业大学资源环境学院;
【基金】：广东省科技计划项目(2014B020206002) 广东省交通运输厅科技项目(科技-2012-02-064)
【分类号】：S154

【相似文献】