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中国长芒草群系的群落特征
乔鲜果1, 郭柯1,2,*(), 赵利清3, 王孜1,2, 刘长成1
Community characteristics of Stipa bungeana alliance in China
QIAO Xian-Guo1, GUO Ke1,2,*(), ZHAO Li-Qing3, WANG Zi1,2, LIU Chang-Cheng1

图2. 长芒草群系的物种存在度(A)、生活型谱(B)、水分生态类型谱(C)和区系地理成分组成(D)。AH, 一、二年生植物; PBG, 多年生丛生禾草; PH, 多年杂类草; PRG, 多年生根茎禾草; S, 灌木; SS, 半灌木。HP, 湿生; MP, 中生; MX, 中旱生; SX, 超旱生; TX, 旱生; XM, 旱中生。CA-MA, 中亚-亚洲中部; EA, 东亚; EPA, 东古北极; HA, 泛北极; MA, 亚洲中部; PA, 古北极; PanT, 泛温带; Te, 古地中海; TP, 青藏高原; WS, 世界。

Fig. 2. Presence (A), life form spectrum (B), spectrum of ecological type for water (C) and geographical floristic type spectrum (D) of the species in Stipa bungeana steppe. AH, annual herbs; PBG, perennial bunch grass; PH, perennial herbs; PRG, perennial rhizome grass; S, shrubs; SS, semi-shrubs. HP, hygrophyte; MP, mesophytes; MX, meso-xerophytes; SX, super-xerophytes; TX, typical xerophytes; XM, xero-mesophytes. CA-MA, central Asia-middle Asia; EA, east Asia; EPA, east Palearctic; HA, Holarctic; MA, middle Asia; PA, Palearctic; PanT, pan-temperate; Te, Tethys; TP, Qinghai-Xizang Plateau; WS, world spread.