文献类型：期刊文献

中文题名：上海市生态用地属性与空气负离子浓度的关联性

英文题名：Relevance of the air negative ion concentrations to the ecological properties of the sampling areas in Shanghai

作者：赵艳佩[1];熊丽君[2];王敏[2];石登荣[1];邱是涵[3]

机构：[1]上海师范大学生命与环境科学学院,上海200234;[2]上海市环境科学研究院,上海200233;[3]华东理工大学中德工学院,上海200237

年份：2015

卷号：15

期号：4

起止页码：322

中文期刊名：安全与环境学报

外文期刊名：Journal of Safety and Environment

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：上海市科学技术委员会科研计划项目(STCSM-12231204600);上海市生态环境调查与评估项目(ZX31942)

语种：中文

中文关键词：环境学;空气负离子;LAI;覆盖度;关联性

外文关键词：environmentalology; air negative ion; LAI; vegetation cover; correlation

摘要：空气负离子具有杀菌、降尘、清洁空气的功效,能够表征环境空气的清洁度。为探明上海市生态用地空气负离子浓度的分布特征,便于人们休闲游憩,选择24个上海市生态核查样区,在植被最为茂盛的夏季进行空气离子浓度监测(离子迁移率为0.4 cm2/(V·s)),共获得正、负离子现场监测数据各21 600个,研究生态用地属性与空气负离子浓度的关系。结果表明:外环以内生态用地负离子浓度总体低于外环以外,内陆地区总体低于临海地区,上海植物园最低,海湾森林公园最高;除东平森林公园外,其他生态用地空气负离子浓度均大于正离子浓度;市区的共青森林公园、世纪公园,郊区的佘山森林公园、金山岛自然保护区等8个样区CI均大于1,空气清洁度为A,最清洁;负离子浓度与植被覆盖度、LAI总体没有明显相关性,但在同一样区3个样方植被覆盖度相差大于等于0.10或LAI相差大于等于1的地区,负离子与植被覆盖度、LAI呈正相关性;负离子与温度呈负相关,不具备显著性,与相对湿度呈明显的正相关性。
The paper is engaged in an investigation of the relevance of the air negative ion concentration to the ecological properties of the sampling areas in Shanghai,for it is believed that the negative air ions play an active function for disinfection,dusting and purification of the air we breathe. In order to explore the concentration distribution of the negative air ion in the different ecological sampling areas of Shanghai in favor of people＇s health protection,leisure and recreation,we have chosen 24 areas in the city for the ecological verification sampling according to the national ecological standards. For our research purpose,we have divided each sampling area into three quadrats for their lush vegetation,with the research time fixed on the summer of 2012 in hoping to monitor the 21 600 data of positive and negative ions by using a kind of air ion monitor with the ionic mobility being 0. 4cm2/（ V·s）. Seeing the fact that there exist more than one factor that may influence the changes of the concentrations of the negative air ions,we have to keep our monitoring activities of all the factors involved,such as the positive ions,the longitude,latitude,temperature,humidity,leaf area index and vegetation cover simultaneously,in addition to the study of the relevance of air negative ions and the ecological sampling area＇s features in the city. The results of our investigative analysis show that：（ 1） The concentration of the negative ions in the sampling areas within the outer-ring roads of the city tend to be lower than that of the outerring areas on the whole,and the concentration of the negative ions in the areas far from the seaside prove to be lower than that of the seaside areas. What is more,the lowest concentration can be found in Shanghai Botanical Garden whereas the highest can be found in the Shanghai Bay Forest Park;（ 2） Of all the regions,the concentration of negative ions turns out to be higher than the positive ions,except for the Dongping Forest Park. In addition,of all the 8 sampling areas whose CI is greater than 1 and the air cleanliness is of level A,such as Gongqing Forest Park,Shiji Park,Sheshan Forest Park and Jinshan Island Natura Reserve;（ 3） No significant correlation can be found among the above said three factors,the negative ions,vegetation cover and LAI in all ecological sampling areas we have investigated,however,in the same sampling area,there exists a positive correlation in the gaps of the vegetation coverage and the other two quadrats;（ 4） No significant negative correlation can be found in the temperature though a significant positive correlation can be found in the relative humidity.