摘要
Energy budget of the water body of the Nanhu lake in Changchun city was studied at ecosystem level.The water surface received 4969635.4kJ·m -2 radiant energy annually,which was used to conduct the physical and biological reactions in the lake,as well as the energy exchanges with surroundings.Loss by evaporation amounted to 55 9% of the total radiant energy received by the lake body,with reflection 17 8%,exchange with atmosphere 14 0%,increase of water temperature 6 6%,ice melting 4 9%,primary production 0 6%,and exchange with bottom 0 2%.Finally, the energy budget of the Nanhu Lake was compared with other water bodies.
Energy budget of the water body of the Nanhu lake in Changchun city was studied at ecosystem level.The water surface received 4969635.4kJ·m -2 radiant energy annually,which was used to conduct the physical and biological reactions in the lake,as well as the energy exchanges with surroundings.Loss by evaporation amounted to 55 9% of the total radiant energy received by the lake body,with reflection 17 8%,exchange with atmosphere 14 0%,increase of water temperature 6 6%,ice melting 4 9%,primary production 0 6%,and exchange with bottom 0 2%.Finally, the energy budget of the Nanhu Lake was compared with other water bodies.
出处
《生态学杂志》
CAS
CSCD
北大核心
2000年第2期8-12,共5页
Chinese Journal of Ecology
基金
吉林省科委资助项目
关键词
长春
南湖
城市湖泊
生态系统
能量收支
ecosystem level,energy budget,the Nanhu lake,Changchun.
