摘要
为反映我国SO2污染的时空演变规律,通过半方差分析和克里格空间内插法,对1990年,1995年和2000年主要城市的SO2年日均浓度进行了空间分析,发现SO2浓度空间分布的结构性在不断减弱,随机性有所增强,并且在总体改善的同时,污染中心有向西部转移的动向.
In order to make clear the spatial and temporal variation of SO2 in China, the average annual concentration of SO2 in key cities of 1990, 1995 and 2000 was analyzed based on the geostatistics that mainly include semivariogram and kriging. It is found that the structural or regional character of the SO2 pollution has been weakened whereas the randomicity has been strengthened. The pollution was meliorated in the whole, but the center has the potential of moving to the western region.
出处
《中北大学学报（自然科学版）》
EI
CAS
2005年第5期372-375,共4页
Journal of North University of China(Natural Science Edition)
基金
中国科学院知识创新工程项目
