Proceedings of the Korea Water Resources Association Conference (한국수자원학회:학술대회논문집)
- 2004.05b
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- Pages.72-76
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- 2004
Theory and Practices of Water Pollution Control by Wetland - a Case Study of Reed Wetland in Baiyangdian Lake
- Li, Guibao (Dept. of Water Envir., China Institute of Water Resources and Hydropower Research) ;
- Zhou, Huaidong (China Institute of Water Resources und Hydropower Research) ;
- Liu, Fang (Graduate Student, Agricultural University of Hebei) ;
- Wang, Dianwu (Agricultural University of Hebei)
- Published : 2004.05.01
Abstract
Wetland is an important eco-system on the earth and can effectively control agricultural non-point source pollution. Reed is a typical wetland plant for land/inland water ecotone in north China. The studies indicated that reed had a underground rooted-stem, which formed a 'high speeded-connecting vessels' i.e. reed root channel (RRC) in Baiyangdian lake of Hebei province. It spread predominantly along horizontal direction underground and are mainly distributed at 18-75 cm. The results of field work from healthy reed-wetland (HRW) and regarded reed-wetland (RRW) showed that the reed, averagely, in HRW is 4.2 m height, 1 cm diameter, 65/m2 density; in RRW is 2.4 m height, 3 mm diameter, 86/m2 density. These results indicated the regradation of the function of RRC in RRW. The results of laboratory work of sewage purification from reed soil column (RSC)