摘要
白洋淀是华北地区重要的淡水湖泊,对该地区生态环境的影响巨大.利用开发的数字化软件对白洋淀进行数字化,计算出了3—9月白洋淀内次表层水温的分布及其变化规律,从而为白洋淀的管理及相关学科的发展提供借鉴和参考.结果表明,白洋淀次表层水温变化与季节变化密切相关,3月份次表层开始出现温度差异,温差为3℃;4—7月,随着气温的回升,水温也逐渐上升;次表层水温的年最高值出现在8月,其值为14℃;9月份温度开始回落,温差也减小到2℃.
Baiyangdian Lake is the most important freshwater lake in North China Plain, and it has considerable influence on ecological environment of this region. In this paper, the terrain map of Baiyangdian Lake was digitized by the software that we developed, then the variation law and the distribution of the subsurface water temperature of Baiyangdian Lake was simulated from March to September. The result showed that the variation of the subsurface temperature was related closely to the seasons. The difference of subsurface temperature began to emerge in March, and it was 3 ℃. From April to July, the higher the air temperature , the higher the sub- surface water temperature . In August, the temperature on the subsurface was 14 ℃, which reached its annual maximum. From September, the subsurface water temperature started to decrease, and the temperature difference also reduced to 2 ℃.
出处
《河北大学学报（自然科学版）》
CAS
北大核心
2007年第3期313-316,共4页
Journal of Hebei University(Natural Science Edition)
基金
河北省教育厅资助项目(Z2006415)
河北省科技厅资助项目(06276906)
关键词
白洋淀
次表层水温
分布
Baiyangdian Lake
subsurface water temperature
distribution.
