Long-term changes of nitrogen and phosphorus loadings to a large lake in north-west Ireland

被引：75
作者：
Zhou, QX
Gibson, CE
Foy, RH
机构：
[1] Queens Univ Belfast, Dept Agr & Environm Sci, Belfast BT9 5PX, Antrim, North Ireland
[2] Dept Agr No Ireland, Agr & Environm Sci Div, Belfast BT9 5PX, Antrim, North Ireland
来源：
WATER RESEARCH | 2000年 / 34卷 / 03期
关键词：
phosphorus; nitrogen; long-term change; lake eutrophication;
D O I：
10.1016/S0043-1354(99)00199-2
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Lower Lough Erne is a large (109.5km(2)) eutrophic lake in north-west Ireland. Nutrient data from 14 years in the period 1974 to 1997 are analysed for temporal trends. Over the period of observation, soluble reactive phosphorus loadings have increased by approximately 2.0 tonnes SRP yr(-1) so that between 1974 and 1997 the mean concentration of the inflow has increased from 15 to 33 mu g SRP 1(-1). The increase is probably caused by diffuse agricultural sources. There is no temporal trend in inorganic nitrogen inputs. but the total nitrogen and total Kjeldhal N both show a weak upward trend with time. (C) 2000 Elsevier Science Ltd. All rights reserved.
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收藏
页码：922 / 926
页数：5
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