北京大学学报（自然科学版）2017，Vol.53Issue(3)：525-534,10.DOI:10.13209/j.0479-8023.2017.058
常州不同城市用地类型地表污染物累积特征
Accumulation Characteristics of Surface Pollutants in Different Urban Land Use Types in Changzhou
摘要
Abstract
In view of the problem that the non-point source pollutants had different accumulation characteristics on urban complex different underlying surfaces, the research took Changzhou central city as an example, collected 64 samples of surface pollutants on residential, industrial, traffic, commercial and cultural lands, tested the contents of SS, ammonia nitrogen and total and dissolved COD, TP, TN of surface pollutants, analyzed the accumulation characteristics of surface pollutants on different urban lands and the seasonal differences among residential and traffic lands. The results showed that the cumulative intensities of pollutants on roads were generally higher than other lands, especially SS and the total COD, with 59004.5 and 11179.7 mg/m2 respectively. The cumulative intensities of dissolved pollutants on commercial lands were highest. The cumulative intensities of pollutants on cultural, residential and industrial lands were low. The cumulative intensities in October 2014 (autumn) and March 2015 (spring) had significant seasonal differences on roads. Compared with autumn, the average cumulative intensities of SS in spring were reduced by 7.7%, while total TN and dissolved COD, TN, TP and ammonia nitrogen were increased by 3.3%, 49%, 85%, 61% and 200%. The cumulative intensities had no seasonal differences on residential lands. The average ratios of grainy to total COD, TP and TN were 86.5%, 85.1% and 71.1%, which indicated that the main pollutants were adsorbed on the particulate matters, and more urban cleaning helped reduce urban non-point source pollution. The average contents of COD and TN per unit mass of particulate matters on commercial lands were higher than that on the other lands with 532.6 mg/g and 17.5 mg/g, while that on roads were lower than that on the other lands with 212.2 mg/g (COD), 0.86 mg/g (TP) and 2.9 mg/g (TN).关键词
城市面源/地表污染物/累积Key words
urban non-point source/surface pollutants/accumulation分类
资源环境引用本文复制引用
江燕,秦华鹏,肖鸾慧,何康茂,赵志杰..常州不同城市用地类型地表污染物累积特征[J].北京大学学报（自然科学版）,2017,53(3):525-534,10.基金项目
国家水体污染控制与治理科技重大专项(2013ZX07501005)资助 （2013ZX07501005）
