小城镇街道灰尘中氮磷含量研究  

STUDY ON NITROGEN AND PHOSPHORUS CONTENT IN STREET DUST OF SMALL TOWNS

作　　者：张菊[1] 邓焕广[1] 陈振楼[2] 许世远[2] 

机构地区：[1]聊城大学环境与规划学院生态环境规划研究中心,山东聊城252000 [2]华东师范大学地理信息科学教育部重点实验室,上海200062

出　　处：《云南地理环境研究》2007年第2期17-21,共5页Yunnan Geographic Environment Research

基　　金：国家自然科学基金(No.40131020);上海市基础研究重点项目(No.02DJ14029).

摘　　要：以上海市的枫泾镇(FJ)、松江新城(SJ)和朱家角镇(ZJJ)为例,研究了小城镇街道灰尘中氮磷的含量水平和分布特征,结果表明:小城镇街道灰尘中总无机氮的含量为11.9～1040.6μg/g,平均含量为117.5μg/g;可溶磷的含量为15.8～265.8μg/g,平均含量为48.7μg/g;各小城镇街道灰尘中的氮磷含量表现为:FJ>ZJJ>SJ。各小城镇街道灰尘中氮磷含量的空间分布差异较大,位于城镇中心和风景区内采样点的氮磷含量明显较高,而城镇周边乡村地区含量较低。对各小城镇街道灰尘氮磷含量的季节变化分析表明,秋季小城镇街道灰尘中氮磷的含量明显高于冬季和夏季,温度、降雨量可能是其季节变化的主要影响因子。Taking Fengjin Town （FJ） , Songjiang New Aera （SJ） and Zhujiajiao Town （ZJJ） as an example, the content and distribution character of the nitrogen and phosphorus in the street dust of small towns was analyzed. The results showed that the range of total inorganic nitrogen content in street dust was 11.9μg/g～1 040.6μg/g, with the average value of 117.5 μ/g, and the range of dissolved phosphorus content was 15.8μg/g～265.8 μg/g, with the average value of 48.7μg/g. The nitrogen and phosphorus content in the street dust of the three small towns could be ordered as follows： FJ〉ZJJ〉SJ. The spatial distribution of the content of nitrogen and phosphorus in the street dust of each town had much difference. The content of nitrogen and phosphorus was much higher at the sampling sites in the central area of the towns and the scenery area than that in rural area of towns. The seasonal change analysis of the nitrogen and phosphorus content in the street dust of the three small towns showed higher content of nitrogen and phosphorus in autumn than in winter and summer. Temperature and precipitation might be the main factors to affect their seasonal change.

关 键 词：氮磷 街道灰尘 分布特征 季节变化 小城镇 

分 类 号：X831[环境科学与工程—环境工程]