云南墨江极小种群物种铁竹的种群结构与群落特征

喻丁香,杜凡,石明,杨聪,代俊

Community characteristics and population structure of Ferrocalamus strictus, a rare species in Mojiang, Yunnan, China

YU Ding-Xiang,DU Fan,SHI Ming,YANG Cong,DAI Jun

表3 铁竹种群静态生命表

Table 3 Time-specific life table of the Ferrocalamus strictus population

x ax nx dx qx Lx Tx ex 1 84 1 000 143 14.30 928.50 3 040.50 3.04 2 72 857 36 4.20 839.00 2 112.00 2.46 3 69 821 214 26.07 714.00 1 273.00 1.55 4 51 607 96 15.82 559.00 559.00 0.92 5 43 511