图1 昆仑针茅草原物种的Raunkiaer生活型谱。Ch, 地上芽植物; Cr, 地下芽(隐芽)植物; H, 地面芽植物; Ph, 高位芽植物; Th, 一年生植物。

Fig. 1 Raunkiaer’s life form spectrum of the species in Stipa roborowskyi steppe. Ch, chamaephytes; Cr, cryptophytes; H, hemicryptophytes; Ph, phanerophytes; Th, therophytes.

图2 昆仑针茅草原物种的区系地理成分分布。1, 青藏高原成分; 2, 青藏高原特有成分; 3, 亚洲中部成分; 4, 东古北极成分; 5, 中亚-亚洲中部成分; 6, 喜马拉雅成分; 7, 西藏-喜马拉雅成分; 8, 亚洲中部山地成分; 9, 泛北极成分; 10, 古北极成分; 11, 古地中海成分; 12, 中国-喜马拉雅成分; 13, 中亚-亚洲中部山地成分; 14, 北极-高山成分; 15, 亚洲中部高山成分; 16, 中亚-喜马拉雅成分; 17, 中亚-亚洲中部高山成分; 18, 中亚-青藏高原特有成分。

Fig. 2 Floristic geographic distribution of the species in Stipa roborowskyi steppe. 1, Qingzang Plateau element; 2, Qingzang Plateau endemic element; 3, Middle Asia element; 4, East palaeo-North pole element; 5, Central Asia-Middle Asia element; 6, Himalayan element; 7, Xizang-Himalayan element; 8, Middle Asia montane element; 9, Pan-North pole element; 10, Palaeo-North pole element; 11, Palaeo-Mediterranean element; 12, China-Himalayan element; 13, Central Asia-Middle Asia montane element; 14, Arctic-Alpine element; 15, Middle Asia alpine element; 16, Central Asia-Himalayan element; 17, Central Asia-Middle Asia alpine element; 18, Central Asia-Qingzang Plateau endemic element.

图3 昆仑针茅草原物种的Domin盖度等级分布。1, 1级盖度级(0.1%); 2, 2级盖度级(>0.1%, 且<1); 3, 3级盖度级(1%-4%); 4, 4级盖度级(5%-10%); 5, 5级盖度级(11%-25%)。

Fig. 3 Domin’s cover class distribution of the species in Stipa roborowskyi steppe. 1, cover class 1 (0.1%); 2, cover class 2 (>0.1% and <1); 3, cover class 3 (1%-4%); 4, cover class 4 (5%-10%); 5, cover class 5 (11%-25%).

图4 昆仑针茅草原物种的恒有度等级分布。I, 0%-20%恒有度; II, 20.1%-40%恒有度; III, 40.1%-60%恒有度; IV, 60.1%-80%恒有度; V, 80.1%-100%恒有度。

Fig. 4 Constancy degree distribution of the species in Stipa roborowskyi steppe. I, 0%-20% constancy; II, 20.1%-40% constancy; III, 40.1%-60% constancy; IV, 60.1%-80% constancy; V, 80.1%-100% constancy.