摘要
研究了模拟水生生态系统中沉水植物对水体营养物质消减的影响。在水体、底泥和沉水植物所组成的模拟生态系统中,沉水植物的生长对于水体中的营养盐浓度具有显著影响。沉水植物对水体营养盐浓度的影响通过多种途径实现,比如直接吸收、促进沉降吸附和促进硝化反硝化作用等。沉水植物的存在降低了模拟水生生态系统中水体营养盐的平衡浓度,同时温度对营养盐的归趋也有重要影响,温度的降低会减缓营养盐从水体中的去除,而温度升高,则会加速这一过程。
Effect of submerged plants on nutrient removal was studied in small model aquatic eco-systems consisting of water, sediment and submerged plants. The growth of submerged plants had a notable effect on residual nutrient concentrations. The equilibrium nutrient concentrations decreased with the presence of submerged plants due to nutrient uptake by roots and rhizomes, stabilization of the sediment surface, enhanced nitrification/denitrification, and etc. The nutrient removal rates increased with the temperature.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2006年第10期753-756,共4页
Environmental Pollution & Control
关键词
模拟水生生态系统
沉水植物
营养盐
富营养化
Simulative aquatic eco-system Submerged plants Nutrition Eutrophication
