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.
作者
王宛青
Wang Wanqing(Weather Bureau of Hainan Tibetan Autonomous Prefecture,Xining 813000,China)
出处
《环境科学与管理》
CAS
2024年第7期132-135,共4页
Environmental Science and Management
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
carbon dioxide concentration
dynamic moving sampling method
characteristics of concentration changes
ecological environment
