固碳菌发酵液修复土石方综合利用区效果研究  

Study on the Effect of Repairing the Comprehensive Utilization Area of Soil and Rock by Carbon Fixing Bacteria Fermentation Solution

作　　者：邓倩雯 谢炽健 陶雪琴[1,2] 刘昊桦 雷泽湘 郭微[3] 王敏 张晖[3] 李义勇 Deng Qianwen;Xie Chijian;Tao Xueqin;Liu Haohua;Lei Zexiang;Guo Wei;Wang Min;Zhang Hui;Li Yiyong(College of Resources and Environment,Zhongkai University of Agriculture and Engineering,Guangzhou 510220,Guangdong,China;Engineering and Technology Research Center for Agricultural Land Pollution Integrated Prevention and Control of Guangdong Higher Education Institutes,Guangzhou 510220,Guangdong,China;College of Horticulture and Landscape Architecture,Zhongkai University of Agriculture and Engineering,Guangzhou 510220,Guangdong,China)

机构地区：[1]仲恺农业工程学院资源与环境学院,广东广州510220 [2]广东省普通高校农业产地污染综合防治工程技术研究中心,广东广州510220 [3]仲恺农业工程学院园艺园林学院,广东广州510220

出　　处：《绿色科技》2024年第18期57-66,共10页Journal of Green Science and Technology

摘　　要：基于土石方综合利用区高效生态修复的技术需求,探讨了固碳菌发酵液对该区土壤的修复效果。选取广西壮族自治区钦州市某水利工程的土石方综合利用区为研究对象,开展了施加石灰、石灰+固碳菌发酵液、石灰+发酵牛粪有机肥3种不同处理,并选取了狗牙根、芒草、猪屎豆、格桑花4种植物开展50 d温室大棚盆栽试验,测试其对该区土壤的生态修复效果。结果表明:未播种情况下,在仅施加石灰条件下,有机质含量从原始土的6.3 g/kg下降至基础土的4.94 g/kg;在施加石灰+发酵牛粪条件下,基础土的有机质含量提升至8.65 g/kg,较原始土增加了37.30%;在施加石灰+固碳菌发酵液条件下,基础土的有机质含量得到大幅提升,达到12.23 g/kg,较原始土增加了94.13%。播种植物在一定程度上消耗了土壤有机质,但施加石灰+固碳菌发酵液的消耗最小。同时,土壤的碱解氮、速效磷和速效钾含量变化表现出与上述有机质含量变化相似的规律。根据隶属函数法计算得出,施加石灰+固碳菌发酵液+格桑花为最适合于本研究区域土石方综合利用区生态修复的措施。Based on the technical requirements of high efficiency ecological restoration of the earthwork area,the effect of carbon fixation bacteria fermentation broth on soil restoration was discussed.In this study,the earthwork area of a water conservancy project in Qinzhou City,Guangxi Province was selected as the research object,and three different treatments including lime,lime-carbon fixation bacteria fermentation solution,and lime-fermented cow manure organic fertilizer were carried out.Four plants such as Cynodondactylon,Miscanthus,Crotalaria and Galsang flower were selected to carry out a greenhouse pot experiment for 50 days.Its ecological restoration effect on soil in this area is tested.The results showed that the organic matter content decreased from 6.3g/kg in the original soil to 4.94g/kg in the base soil under the condition of no seeding and only lime application.Under the conditions of lime and fermented cow manure,the organic matter content of the base soil increased to 8.65g/kg,which was 37.30%higher than that of the primitive soil.Under the conditions of lime and carbon fixation bacteria fermentation solution,the organic matter value of the foundation soil increased significantly,reaching 12.23g/kg,which was 94.13%higher than that of the primitive soil.Sowing plants accelerated the consumption of soil organic matter to a certain extent,but the application of lime and carbon fixation bacteria fermentation liquid could mostly reduce the consumption.At the same time,the changes of available nitrogen,phosphorus and potassiumin soil showed a similar pattern to that of organic matter.According to the calculation of the membership function method,the application of lime and carbon fixation bacteria fermentation solution+Galsang flower is the most suitable measure for ecological restoration of the earthwork area in this study.

关 键 词：土石方综合利用区 固碳菌发酵液 生物有机肥 生态修复 

分 类 号：S153.6[农业科学—土壤学]