蔬菜地面源污染生态拦截系统与效果
针对蔬菜种植业面源污染日益严重的现状,该文选取浙江省太湖流域典型的蔬菜集约化种植区为研究对象,以因地制宜、实用高效、维护便捷、成本合理为原则,在研究区域构建了农田生态沟渠—生态消纳塘水肥一体化—过滤型主排水渠生态拦截系统,并对拦截系统效果进行综合分析研究,探索高效实用的农田面源污染生态拦截技术。结果表明,与2010年相比,工程建成运行后2011年、2012年总氮去除率分别达33%~52%、43%~67%,总磷去除率达23%~59%、43%~82%,在雨季6-9月间,去除效果最佳,且2012年效果优于2011年。该系统有效削减了菜地废水氮、磷等营养元素的排放,达到改善水质、美化景观、提升经济的综...
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| Published in | 农业工程学报 Vol. 29; no. 20; pp. 168 - 178 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
浙江大学环境与资源学院，杭州 310058
2013
农业部面源污染控制重点开放实验室，杭州 310058%浙江省农业科学院,杭州,310021%浙江大学环境与资源学院,杭州,310058 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2013.20.023 |
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| Summary: | 针对蔬菜种植业面源污染日益严重的现状,该文选取浙江省太湖流域典型的蔬菜集约化种植区为研究对象,以因地制宜、实用高效、维护便捷、成本合理为原则,在研究区域构建了农田生态沟渠—生态消纳塘水肥一体化—过滤型主排水渠生态拦截系统,并对拦截系统效果进行综合分析研究,探索高效实用的农田面源污染生态拦截技术。结果表明,与2010年相比,工程建成运行后2011年、2012年总氮去除率分别达33%~52%、43%~67%,总磷去除率达23%~59%、43%~82%,在雨季6-9月间,去除效果最佳,且2012年效果优于2011年。该系统有效削减了菜地废水氮、磷等营养元素的排放,达到改善水质、美化景观、提升经济的综合效果,为蔬菜种植区面源污染控制提供技术工程示范,具有典型的推广应用价值。该文可为农田面源污染拦截技术研究及应用提供参考。 |
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| Bibliography: | pollution, ecology, engineering, vegetable field, ecological interception The ever-worsening problem of non-point source pollution has plagued vegetable industries worldwide. This study attempts to tackle this problem using an ecological interception system in Taihu basin, Zhejiang province, to examine the effects of removal of nitrogen （N） and phosphorous （P） from the effluents of vegetable fields. The system consisted of ecological ditches with filtration apparatus optimized for location, efficiency, and cost control. Construction of the system started in September 2010 and was completed and put into operation in April 2011. The results showed total-N removal rates of 79.75% and 88.86% in July 2011 and July 2012 respectively, which were 2.47 and 3.02 times the controls for the same years. The total-P removals in July 2011 and July 2012 were 86.74% and 96.35% respectively, which were 2.39 and 2.84 times of the controls for the same years. Compared to 2010, the total-N and total-P concentrations in the effluen |
| ISSN: | 1002-6819 |
| DOI: | 10.3969/j.issn.1002-6819.2013.20.023 |