白洋淀污染现状空间分布规律可视化分析

Visual Analysis of Spatial Distribution Law of Pollution in Baiyangdian Lake

选用2012年为现状年,运用Surfer软件对白洋淀主要污染物浓度的现状分布、富营养化程度分布及其趋势面进行可视化分析。结果表明:白洋淀大部分淀区的营养盐污染、有机污染以及富营养化程度都相当严重,污染程度由西向东逐渐减轻,其中入淀控制监测断面的污染最严重;白洋淀的污染主要由入淀河流排污产生的点源污染所致,应对白洋淀入淀河流污染进行严格治理;利用Surfer软件制图结果表述简单直观,为白洋淀水质污染状况的表征和评价提供了一种新的尝试。

Selected 2012 as the present year, made visual analysis on the main pollution concen-tration distribution, eutrophication degree distribution and trend surface in Baiyangdian Lake by Surfer software. The results showed that： nutrient pollution, organic pollution and eutrophication are quite serious, pollution level gradually reduces from west to east and pollution of the monito-ring section which controls the pollution into the lake is the most serious. Pollution in Baiyangdian Lake is mainly caused by the point source pollution, so the rivers into the lake should be strictly governed. The results got by Surfer are simple and intuitive, which can provide a new attempt for the characterization and evaluation of water quality pollution in Baiyangdian Lake.