内蒙古地区的C_4植物名录

The List of C_4 Plants in NeiMongol Area

根据国内外已发表的不同地区的 C4 植物名录以及实测的内蒙古地区 2 80余种植物的稳定性碳同位素值 (δ13 C) ,将内蒙古地区 2 3 2 6种维管植物中的 C4 植物名录整理出来 ,共有 1 2科 57属的 1 2 5种植物是 C4 光合功能型 ,分别属于蓼科、藜科、苋科、马齿苋科、大戟科、景天科、蒺藜科、旋花科、菊科、眼子菜科、禾本科和莎草科 .含有 4种以上 C4 植物的属为 9个 ,分别是藜属、地肤属、猪毛菜属、兔丝子属、眼子菜属、隐子草属、稗属、画眉草属和莎草属 .并归纳了1 2 5种 C4 植物的生活型、水分生态型。

All the C 4 plants in NeiMongol of China were identified according to the stable carbon isotope( δ 13 C)contents and some related literatures. There are 125 C 4 species of total 2 326 vascular plants in NeiMongol area. They belong to 12 families,that is, Polygonaceae, Chenopodiaceae, Amaranthaceae, Portulacaceae, Euphorbiaceae, Crasulacaceae, Zygophyllaceae, Convolvulaceae, Compositae, Potamogetonaceae, Gramineae and Cyperaceae. The genera containing more than four C 4 species are Chenopodium, Kochia, Salsola, Cuscuta, Potamogeton, Cleistogenes, Echinochloa, Eragrostis and Cyperus. The life form, water ecotype, geographical element of flora and distribution region of 125 C 4 plants were also given here, which could provide a basis for further studies in this area.