摘要
大伙房水库每年要接纳的氮、磷量分别为1878.75t和61.23t,其中无机氮1423.07t、溶解总磷45.27t。水库输出的氮、磷量分别为898.08t和26.44t。全年滞留于水库的氮为980.67t,磷为34.79t。河流输入氮、磷量约占总输入量的94.2%和95.2%,是大伙房水库氮、磷最主要的来源。此外,河流还向水库输入外源性浮游物约15111.34t可提供鱼产量约635t。外源性浮游物对水库渔业具有一定意义。
The annual inputs of total nitrogen and phosphorus were 1878.5 t and 61.23t,respectively,in which the total inorganic nitrogen and dissolved phospho-rus were 1423.07 t and 47. 27 t.The annual outputs of the total nitrogen and phosphorus were 898.08 t and 26.44 t,and about 980.6 t nitrogen and 34.79 t phosphorus were accumulated in Dahuofang Reservoir through a year,The influx-es of three rivers were dominant nutrient resource, 94.2% nitrogen and 95.2% phosphorus inputs derived from these rivers,In addition to these,approximate 15111.34 t extragenous seston which would be turnovered 635 t potential fish pro-duction were also inputed by these rivers in a year.The extragenous seston was important to reservoir fisheries.
出处
《大连水产学院学报》
CSCD
1995年第1期43-48,共6页
Journal of Dalian Fisheries University
基金
大伙房水库管理局的资助
关键词
水库
营养物质
氮
磷
浮游物
reservoir
nutrient
nitrogen
phosphorus
seston