中国红原泥炭沼泽植物区系研究

沼泽植物是形成泥炭物质来源的重要资源植物。我国省西北部高原的红原县是我国沼泽最发达的地区之一，沼泽植物约有１５５种，隶属于３９科，８７属，包括世界分布属２０属，泛热带分布属５１属，旧世界温带分带属７属，温带亚洲分布属２属，地中海，西亚至中亚分布属１属和东亚分布属５属，在泥炭沼泽植物中，莎草科是种数最多的科，其次是菊科、毛茛科、玄参数、禾本科和龙胆科，它们的种数约占全部泥炭沼泽植物种数的５３．５４％

A STUDY ON THE FLORA OF PEATERY SWAMP PLANTS IN HONGYUAN,SICHUAN,CHINA

Swamp peatery plants are one of the important resource plants that formed peat. Hongyuan county of Northwest Plateau of Sichuan Province is one of the swamp development regions in China, there are 155 species of peatery swamp plants, which belong to 39 families and 87 genera, including 20 Cosmopolitan genera, 1 Pantropic genus, 51 North Temperate genera, 7 Old World Temperate genera, 2 Temperate Asia genera, 1 Mditerrane, W. Asia to C. Asia genus and 5 E. Asia genera. As for species,Cyperaceae is the largest family, and Compositae second, and Ranunculaceae, Scrophulariaceae third, and Gramineae fourth, which species numbers were 53.54 percent in the total species of peatery swamp plants. In the present paper, the areal types of every family and genus of peatery swamp plants are stated, which factors in the flora are studied. Main features of peatery swamp plants flora are pointed out, and flora of North Temperate is considered as main areal types of peatery swamp plants in Hongyuan.