How Long, Narrowly Constructed Wetlands Purify Irrigation Return Water: A Case Study of Ulansuhai Lake, China

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td align="left"> </td><td align="center">May </td><td align="center">July</td><td align="center">Sep.</td><td align="center">Nov.</td><td align="center">Average</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td align="left">
                  RR<sub>N</sub></td><td align="center">0.235</td><td align="center">0.282</td><td align="center">0.203</td><td align="center">0.164</td><td align="center">22.1%</td></tr><tr><td align="left">RR<sub>P</sub></td><td align="center">0.224</td><td align="center">0.313</td><td align="center">0.211</td><td align="center">0.113</td><td align="center">21.5%</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Average removal ratio of N and P in four monitoring periods.

Advances in Meteorology

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Table 2

Table 2: How Long, Narrowly Constructed Wetlands Purify Irrigation Return Water: A Case Study of Ulansuhai Lake, China 