不同类型建筑用地上空污染物浓度变化特征研究  

Analysis of Characteristics of Pollutant Concentration Changes over Different Types of Building Land

作　　者：王宛青 Wang Wanqing(Weather Bureau of Hainan Tibetan Autonomous Prefecture,Xining 813000,China)

机构地区：[1]海南藏族自治州气象局,青海西宁813000

出　　处：《环境科学与管理》2024年第7期132-135,共4页Environmental Science and Management

摘　　要：为研究不同类型建筑用地上空污染物浓度变化特征,选择某典型高原大陆性气候的城市开展研究,利用决策树分类法获取该市的土地利用信息。应用静态与动态采样方法,调查1年间各类建筑用地上空二氧化碳浓度。结果显示,距市中心越远,CO_(2)浓度越低;绿地用地CO_(2)排放量最低,商业、住宅、工业用地最高。温度与污染物浓度呈正相关。结论指出:土地利用类型造成温度差异,进而影响污染物浓度变化。高温环境对污染物浓度变化有着显著影响。研究为城市规划和环境保护提供了重要的参考和借鉴。In order to study the variation characteristics of pollutant concentrations over different types of construction land,a typical plateau city with continental climate was selected to carry out the research.The land use information of the city was obtained by using the decision tree classification method.Static and dynamic sampling methods were used to investigate the carbon dioxide concentration over various types of construction land in one year.The results showed that the farther away from the city center,the lower the CO_(2) concentration.The CO_(2) emission of green land is the lowest,while that of commercial,residential and industrial land is the highest.There was a positive correlation between temperature and pollutant concentration.The conclusion is that land use types cause temperature differences,and then affect the change of pollutant concentration.High temperature environment has a significant impact on the concentration of pollutants.This study provides an important reference for urban planning and environmental protection.

关 键 词：二氧化碳浓度 动态移动采样方法 浓度变化特征 生态环境 

分 类 号：X831[环境科学与工程—环境工程]