| 罗源湾区域入海非点源污染COD排放量估算 |
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| 引用本文： | 林志兰,余兴光,刘希,陈彬.罗源湾区域入海非点源污染COD排放量估算[J].台湾海峡,2006,25(2):209-215. |
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| 作者姓名： | 林志兰 余兴光 刘希 陈彬 |
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| 作者单位： | 1. 国家海洋局第三海洋研究所,福建,厦门,361005
2. 国家海洋局第三海洋研究所,福建,厦门,361005;厦门大学环境科学研究中心,福建,厦门,361005 |
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| 基金项目： | 福建省海洋与渔业局科研项目 |
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| 摘 要： | 根据汇水流向,借助GIS进行罗源湾汇水区的划分;在ENVI软件下利用遥感分析技术提取土地利用类型;结合研究区域内主要溪流的水质监测结果和土地利用现状,利用反推法计算出农田污染单位面积COD负荷.在此基础上,采用排污系数法和单位面积污染负荷法分别计算出各汇水区农村生活污水、畜禽养殖、农田和村镇建设用地降雨径流的COD排放量.结果表明罗源湾入海非点源污染COD总排量为11 446.44t/a,其中农村生活污水的COD排放量最大,约占38.9%,其次是畜禽养殖、农田和村镇建设用地降雨径流污染.最后提出非点源污染控制的建议.
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| 关 键 词： | 海洋环境 COD排放量 非点源污染 入海污染物 罗源湾 |
| 文章编号： | 1000-8160（2006）02-0209-07 |
| 收稿时间： | 2006-01-19 |
| 修稿时间： | 2006-01-19 |
Estimation of COD discharge from non-point pollution into Luoyuan Bay |
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| LIN Zhi-lan,YU Xing-guang,LIU Xi,CHEN Bin.Estimation of COD discharge from non-point pollution into Luoyuan Bay[J].Journal of Oceanography In Taiwan Strait,2006,25(2):209-215. |
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| Authors: | LIN Zhi-lan YU Xing-guang LIU Xi CHEN Bin |
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| Institution: | 1. Third Institute of Oceanography, SOA, Xiamen 361005, China; 2. Environmental Science Research Center, Xiamen University, Xiamen 361005 ,China |
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| Abstract: | According the flowing direction, the watershed in Luoyuan coastal zone was segmented with GIS technology. The landuse information was extracted from TM image. With water quality data and landuse information, the unit-area load of COD from farmland runoff was estimated by means of reverse educing. Consequently, COD discharges from household wastewater,livestock cultivation and the runoff from farmland and construction land were estimated using discharge coefficient and unit- area load approaches. It is estimated that total COD discharge from non-point pollution into Luoyuan Bay was 11 446. 44t/a. The household wastewater was the biggest source of non-point pollution which accounts for 38.9%. The second source was livestock cultivation. The COD discharge from the runoff of farm and the construction land was the least. Advices to control non-point pollution were put forward in this paper. |
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| Keywords: | marine environment COD emission non-point source pollution pollutant into bay Luoyuan Bay |
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