NUTRIENT DYNAMICS IN SHALLOW LAKES - EFFECTS OF CHANGES IN LOADING AND ROLE OF SEDIMENT-WATER INTERACTIONS

被引:42
作者
LIJKLEMA, L
机构
[1] Water Quality Management Section, Nature Conservation Department, Agricultural University, DD Wageningen, 6700
关键词
NUTRIENTS; LOADING; LOAD REDUCTION; LAKES; PRODUCTIVITY; RESILIENCE; NUTRIENT POOLS; SINKS; LIMITING NUTRIENT;
D O I
10.1007/BF00026724
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
The transport and cycling of nutrients through the various pools in water, soil and sediment is controlling the long term and short term productivity of water bodies. An understanding of the size of these pools and the fluxes between them is essential for the assessment of the usefulness of management measures resulting in reduced external input and the anticipated resilience of the system towards changes in trophic character. Large pools, such as phosphorus in surficial sediments and nitrate in groundwater have a potential for prolonged stimulation of productivity. Diffuse sources, fluxes towards sinks, competition between biota and adsorbents for sparse nutrients, feedback mechanisms, non-linearities and shifts among prevailing processes are discussed.
引用
收藏
页码:335 / 348
页数:14
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