摘要
针对我国区域环境现状评价工作中的实际问题,在地理信息系统PURSIS的支持下,作者设计了一种离散点插值或趋势面拟合扩展的方法,将以往侧重于监测点逐点评价扩展为在整个空间区域上进行评价,即通过扩展模型获得评价因于浓度空间分布图,在此基础上进行环境因子单项或综合评价。在福建湄洲湾环境质量现状评价中,用这种方法,可以统计出污染物的超标面积及分布区域,并进行年际比较,取得了更为科学、实用的评价结果。
In this paper, a fresh attempt has been made in evaluating environmental quality of a region by GIS-PURSIS. The authors have designed an expansion method with scar-tering point insertion or tendency-plane simulation instead of what the conventional method emphasizes the data of monitoring points, applies them to spatial assessment, then graphs the distribution of pollutant concentrations on maps. The new method has been applied to assessment of environmental quality in Meizhou Bay, Fujian Pro-vince, and a scientific and practical result has been acheived.
出处
《环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1990年第6期62-67,共6页
Environmental Science
关键词
环境质量
评价
区域环境
湄洲海湾
Spatial assessment of environmental quality, geographic information system, Meizhou Bay.
