| 植被缓冲带对乌梁素海区域农业面源污染的削减效果 |
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| 引用本文： | 史中奇,王猛,谭军,丁胜利,贾冰冰,刁风伟,罗俊清,侯亚州,王立新,郭伟.植被缓冲带对乌梁素海区域农业面源污染的削减效果[J].水土保持学报,2022,36(3):51-56. |
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| 作者姓名： | 史中奇 王猛 谭军 丁胜利 贾冰冰 刁风伟 罗俊清 侯亚州 王立新 郭伟 |
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| 作者单位： | 1. 内蒙古大学生态与环境学院, 蒙古高原生态学与资源利用教育部重点实验室, 草原生态安全省部共建协同创新中心, 内蒙古自治区环境污染控制与废物资源化重点实验室, 呼和浩特 010070;2. 内蒙古河套灌区水利发展中心乌拉特分中心, 内蒙古 巴彦淖尔 014400;3. 内蒙古河套灌区水利发展中心乌拉特分中心九排干沟排水所, 内蒙古 巴彦淖尔 014400 |
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| 基金项目： | 内蒙古自治区科技重大专项(ZDZX2018054);国家自然科学基金项目(31860170,41977113);内蒙古自然科学基金项目(2018MS04003) |
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| 摘 要： | 通过在内蒙古乌拉特前旗乌梁素海九排干岸边构建湖滨植被缓冲带,研究不同盐生植物种类和配置对农业面源污染削减效果的影响。结果表明:无植物空白对照带对径流和渗流水中TN、TP和COD无明显削减规律,芦苇、碱蓬、柽柳和芦苇—碱蓬混播缓冲带随着缓冲带宽度的增加削减率呈先增加后减缓的趋势,渗流水中污染物质的削减效果优于径流水。其中,芦苇对径流和渗流水中TN、TP的削减效果最好,削减率分别为53.56%,79.17%和62.37%,83.25%;碱蓬对径流和渗流水中COD的削减效果最好,削减率分别为50.53%,67.34%。通过计算得到4种植被缓冲带的最佳宽度为19~29 m,其中,碱蓬缓冲带宽度为19 m。综合考虑,可以选择真盐生植物碱蓬作为乌梁素海盐渍化湖滨带植被重建的首选植物,并将植被缓冲带在该地区扩展研究,推广应用。
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| 关 键 词： | 植被缓冲带 农业面源污染 乌梁素海 植物种类 最佳宽度 |
| 收稿时间： | 2021/10/5 0:00:00 |
Effect of Vegetation Buffer Zone on Reducing Agricultural Non-point Pollution in Wuliangsuhai Lake Basin |
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| SHI Zhongqi,WANG Meng,TAN Jun,DING Shengli,JIA Bingbing,DIAO Fengwei,LUO Junqing,HOU Yazhou,WANG Lixin,GUO Wei.Effect of Vegetation Buffer Zone on Reducing Agricultural Non-point Pollution in Wuliangsuhai Lake Basin[J].Journal of Soil and Water Conservation,2022,36(3):51-56. |
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| Authors: | SHI Zhongqi WANG Meng TAN Jun DING Shengli JIA Bingbing DIAO Fengwei LUO Junqing HOU Yazhou WANG Lixin GUO Wei |
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| Institution: | 1. Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Ministry of Education, Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education, School of Ecology and Environment, Inner Mongolia University, Hohhot 010070;2. Water Conservancy Development Center Urad Branch of Inner Mongolia Hetao Irrigation District, Bayannur, Inner Mongolia 014400;3. The Ninth Drain Ditch Drainage Station, Urad Sub-center of Inner Mongolia Hetao Irrigation District Water Conservancy Development Center, Bayannur, Inner Mongolia 014400 |
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| Abstract: | The effects of different halophyte species and configurations on reducing agricultural non-point source pollution were studied by constructing a lakeside vegetation buffer zone on the ninth trunk canal shoreside of Wuliangsuhai Lake, Wulate Front Banner, Inner Mongolia. The results showed that the blank buffer zone without plant had no obvious reduction law of TN, TP and COD in runoff and seepage water. The reduction rates of the Phragmites australisbuffer zone, Suaeda glaucabuffer zone, Tamarix ramosissimabuffer zone, Phragmites australis and Suaeda glauca mixed buffer zone increased first and then slowed down with the increasing of the buffer zone width. The reduction effect of pollutants in seepage water was better than that of runoff water. Among them, P. australis had the best reduction effect on TN and TP in runoff and seepage water,with the reduction rates of 53.56%, 79.17% and 62.37%, 83.25%, respectively. S. glauca had the best reduction effect on COD in runoff and seepage water, with the reduction rates of 50.53% and 67.34%, respectively. Through calculation, the optimal width of the four vegetation buffer zones were 19~29 m, among which the width of S. glauca buffer zone was 19 m. Considering comprehensively, the true halophyte S. glauca could be selected as the preferred plant for the reconstruction of theWuliangsuhai Lake salinized lakeside, and the vegetation buffer zone could be expanded and applied in this area. |
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| Keywords: | vegetation buffer zone agricultural non-point source pollution Wuliangsuhai Lake plant species optimum width |
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