济南市南部山区不同模式庭院林空气负离子浓度  

Air negative ion concentration in different modes of courtyard forests in southern mountainous areas of Jinan,Shandong Province of East China

作　　者：王晓磊[1] 李传荣[2] 许景伟[3] 胡丁猛[3] 赵振磊[2] 张刘东[2] 

机构地区：[1]中国林业科学研究院林业研究所/国家林业局城市林业研究中心,北京100091 [2]泰山森林生态站/山东农业大学农业生态与环境重点实验室,山东泰安271018 [3]山东省林业科学研究院,济南250014

出　　处：《应用生态学报》2013年第2期373-378,共6页Chinese Journal of Applied Ecology

基　　金："十二五"国家科技支撑计划项目(2011BAD38B03-2);山东省生态省创新工程项目(2005GG-1106001);山东省科技发展计划项目(2010GSF10630)资助

摘　　要：以济南市南部山区5种典型庭院林和1个无林庭院为对象,2010年3—12月对其空气负离子和相关气象因子进行同步观测.结果表明:不同模式庭院林空气负离子浓度呈明显的季节变化,夏季>秋季>春季>冬季;其中,日变化呈双峰曲线,峰值分别出现在10:00—11:00和16:00—17:00,12:00前后出现低谷.日空气质量均在10:00和16:00最清洁,下午的空气质量优于上午;夏季空气质量最佳;园林小品型四季空气质量等级最高.不同模式庭院林年均空气负离子浓度和离子评议系数(CI)大小排序为:园林小品型>经济林果型>自然绿化型>花卉盆景型>"农家乐"型>对照.负离子浓度分别为813、745、695、688、649和570个·cm-3;CI为1.22、1.11、0.85、0.84、0.83和0.69.园林小品型庭院林为最理想的庭院林模式.空气负离子浓度与空气温度和相对湿度呈显著正相关,与光照强度没有相关性.Taking five typical courtyard forests and a non-forest courtyard in southern mountains areas of Jinan as test objects,a synchronous observation was conducted on the air negative ion concentration and related meteorological factors in March-December,2010.The air negative ion concentration in the test courtyards showed an obvious seasonal variation,being in the order of summer autumn spring winter.The diurnal variation of the air negative ion concentration presented a double peak curve,with the maximum in 10：00-11：00 and 16：00-17：00 and the minimum around 12：00.The daily air quality was the best at 10：00 and 16：00,and better in afternoon than in the morning.Summer time and garden sketch mode had the best air quality in a year.The mean annual air negative ion and the coefficient of air ion（CI） of the test courtyards were in the order of garden sketch economic fruit forest natural afforested forest flowers and bonsai farm tourist non-forest,with the air negative ion concentration being 813,745,695,688,649,and 570 ions·cm-3,and the CI being 1.22,1.11,0.85,0.84,0.83,and 0.69,respectively.It could be concluded that garden sketch was the ideal courtyard forest mode.The air negative ion concentration was significantly positively correlated with air temperature and relative humidity,but irrelevant to light intensity.

关 键 词：庭院林 空气负离子 离子评议系数 空气质量 济南 

分 类 号：X831[环境科学与工程—环境工程]