淮河中上游浮游植物时空分布特征及关键环境影响因子识别
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周宇建, 张永勇, 花瑞祥, 左其亭, 陈豪
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Spatial and temporal distribution of phytoplankton assemblages and key environmental factors in the upper and middle Huaihe River
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Yujian ZHOU, Yongyong ZHANG, Ruixiang HUA, Qiting ZUO, Hao CHEN
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| 表1 环境因子平均值及其变化范围 |
| Tab. 1 Mean values of environmental variables and their ranges |
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| 非汛期 | | 汛期 | P | | 2012-12 | | 2013-12 | 平均值 | 2013-7 | 2014-7 | 平均值 | | pH | 8.26 ±0.34 | 8.28 ±0.22 | 8.26±0.34 | | 7.70 ±1.17 | 8.24 ±0.39 | 7.7±1.17 | 0.350 | | CON(μs·cm–1) | 851.00 ±507.00 | 717.50 ±408.50 | 833.5±524.5 | 573.70 ±414.30 | 851.00 ±507.00 | 758.7±599.3 | 0.040 | | ORP(mv) | 186.20 ±103.00 | 224.00 ±22.70 | 186.2±103 | 143.05 ±23.15 | 269.35 ±160.75 | 269.35±160.75 | 0.059 | | NH4-N(mg·L–1) | 1.48 ±1.38 | 1.27 ±1.09 | 1.48±1.38 | 0.47 ±0.34 | 0.32 ±0.19 | 0.47±0.34 | 0.030 | | CODMn(mg·L–1) | 2.56 ±1.76 | 3.13 ±2.16 | 3.05±2.25 | 3.31 ±2.10 | 2.92 ±1.94 | 3.20±2.22 | 0.070 | | CODCr(mg·L–1) | 16.55 ±6.55 | 13.15 ±3.15 | 16.55±6.55 | 12.30 ±2.30 | 17.10 ±4.50 | 15.8±5.8 | 0.064 | | TP/mg·L–1) | 0.17 ±0.14 | 0.14 ±0.12 | 0.16±0.14 | 0.11 ±0.09 | 0.21 ±0.19 | 0.20±0.18 | 0.080 | | TN(mg·L–1) | 4.73 ±4.23 | 4.88 ±3.95 | 4.73±4.23 | 2.49 ±1.80 | 2.72 ±1.75 | 2.58±1.89 | 0.045 | | DO(mg·L–1) | 11.13 ±1.42 | 11.00 ±2.39 | 11±2.39 | 9.72 ±7.68 | 7.12 ±3.46 | 9.72±7.68 | 0.002 |
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