摘要
日本Kojima湖现在每年的COD平均浓度大约是 1 0mg/L ,这是日本环境标准的两倍。COD颗粒的浓度被确定是与叶绿素a的浓度成比例的。另一方面 ,溶解COD的浓度与叶绿素a的浓度无关。因此 ,COD颗粒显然是被水藻增长引起的。此外 ,估计与Kojima湖富营养化相关的内部产物导致的COD的百分比是总COD的 2 0 %～ 30 %。
The current annual average COD concentration in Kojima Lake, Japan is about 10 mg/L, which is twice that of the Japanese Environmental Standard The concentration of particulate COD (p-COD) was determined to be proportional to the concentration of chlorophyll a On the other hand, the concentration of dissolved COD was independent of chlorophyll a concentration Hence, p-COD is apparently caused by algal growth Moreover, the percentage of COD due to eutrophication-related internal production in Kojima Lake was estimated to be 20%～30% of the total COD
出处
《云南地理环境研究》
2002年第2期51-55,共5页
Yunnan Geographic Environment Research
