状态 | 透明度(m) | DO (mg/L) | 初级生产力(g/m2∙d) | (mg/L) | NO2-N (mg/L) | 可溶解磷(mg/L) | TOC (总有机碳) (mg/L) | |||||||
xik | sik | xik | sik | xik | sik | xik | sik | xik | sik | xik | sik | xik | sik | |
极贫 | 40 | 1 | 40 | 1 | 0.70 | 1 | 0.10 | 1 | 0.01 | 1 | 0.001 | 1 | 0.02 | 1 |
贫 | 8 | 5 | 16.5 | 5.88 | 1.18 | 4.79 | 0.50 | 5.0 | 0.05 | 5.0 | 0.005 | 5 | 0.10 | 5 |
中 | 2.40 | 16.68 | 10.0 | 16.0 | 2.0 | 23.32 | 3.0 | 30.0 | 0.15 | 15.0 | 0.010 | 10 | 0.50 | 25 |
富 | 0.73 | 54.8 | 4.0 | 100.0 | 3.25 | 100.08 | 10.0 | 100 | 0.50 | 50 | 0.050 | 50 | 1.50 | 75 |
重富 | 0.40 | 100 | 3.0 | 177.76 | 4.20 | 216 | 20.0 | 200 | 2.00 | 200 | 0.20 | 200 | 7.0 | 350 |
极富 | 0.10 | 400 | 1.0 | 1600 | 7.0 | 1000 | 35.0 | 350 | 5.00 | 500 | 1.00 | 1000 | 30 | 1500 |