Abstract: Luliang Prefecture, situated in 36°30'~38°30' N, 110°10'~110°20'E, is located in the eastern of loess plateau and western Shanxi, North China. The wetland vegetations in Luliang Prefecture are concentrately distributed in the basins of Sanchuan River, Qiushui River and Wenyu River, and in Wucheng Reservoir and Wenyuhe Reservoir and around the reservoirs. The wetland vegrtations were divided into 11 formations by TWINSPAN, which were as follows: Form. Phragmites communis, Equisetum ramosissimum, Form. Polygonum hydropiper, Form. Chloris virgata, Form. Calamagrostis pseudophragmites, Form. Artemisia scoparia, Form. Medicago falcata, Form. Carex sp., Medicago falcata, Form. Aneurolepidium dasystachys, Form. Carex spp., Form. Artemisia scoparia, Artemisia annua, Form. Chloris virgata, Artemisia integrifolia. Moreover, the dynamics of the wetland vegetation and the relationship between the vegetation and moisture in soil were discussed, respectively, Finally, the strategies for protecting, utilizing, developing the vegetation are presented in this paper.

Key words: Loess plataeu, Wetland vegetation, Numerical classification, Luliang Prefecture, Shanxi