Riparian buffers are of important application patential . the present this is only primary study on riparian buffer effectiveness 5 )缓冲带对不同浓度的无机营养盐和有机营养盐的吸收效果不同。
The category , character , standard , and manage request of fortified nutrient salt was depicted emphasizly 重点介绍了强化营养盐状况、强化营养盐食品添加剂的类别、性质和强化营养盐标准及管理要求。
It is necessary to study aerobic treatment with in - situ bioremediation by means of inoculated microorganism and added nutrition and co - metabolism substrate 接种微生物、添加电子受体、营养盐和共代谢基质是生物修复的主要技术手段。
Because of the nutrient load both inside and outside , xuanwu lake became a eutrophic lake ; eutrophication is going to be more serious in the f uture 在巨大的营养盐内外负荷压力下，玄武湖处于严重富营养化状态，且存在恶化的趋势。
Due to the major role played by diatoms in the biological pump of co _ ( 2 ) , biogenic silica may has a close coupling in the global carbon cycle 生物硅在整个海洋硅循环中占有重要地位。在过去的40年中，营养盐结构的变化已经引起胶州湾生态环境的巨大变化。
Nutrients concentration has an obvious increase than those in 1980s , and clear seasonal variation of nutrients distribution and structure was observed in this area 调查海区主要形态营养盐浓度较20世纪80年代有较为显著的升高，而且营养盐分布具有明显的季节变化。
The pelagic - benthic coupling is realized by the deposition of phytoplankton and poc into the detritus and the transportation of nutrient elements from the bottom to the pelagic 水层和底栖生态系统的耦合是通过浮游植物与颗粒有机物的沉降和沉积物中营养盐的再悬浮来实现的。
Analysis of change of the nutrient concentration in porewater with depth indicates the relation between the oxidative - reductive conditions and the nutrient concentration 对沉积物中孔隙水营养盐浓度随深度的变化分析，表明了沉积物孔隙水中营养盐浓度变化与氧化还原环境的关系。
For revealing the mechanism of low bacterial biomass in the lake , limiting factors for bacterial growth were studied with pure cultural and natural cultural tests 为了探明西湖水体中细菌生物量低的原因，通过添加不同营养盐类的纯种和自然培养试验，对异养细菌生长的限制因子进行了研究。
Biological activities are also vigorous at the boundaries of freshwater and shelf water , including the boundaries of water masses and the upwelling areas . the sink of co2 is thus further enlarged 冲淡水带来了大量的营养盐，促进了生物活动的发展，必然消耗大量的coz ，使海水成为大气co :的汇区。
