河北小五台山青杨种群中雌雄群体的空间分布及其成因

蒙振思,向卫,苏国岿,李大东,董廷发,彭进友,李晓东,龚小平,梁宁,胥晓

Spatial distribution of male and female Populus cathayana populations and its drivers in Xiaowutai Mountains, Hebei, China

MENG Zhen-Si,XIANG Wei,SU Guo-Kui,LI Da-Dong,DONG Ting-Fa,PENG Jin-You,LI Xiao-Dong,GONG Xiao-Ping,LIANG Ning,XU Xiao

表5 小五台山青杨雌雄群体优势分布区的土壤理化性质(平均值±标准误差, n = 6)

Table 5 The soil properties in dominant distribution area of female and male Populus cathayana trees in Xiaowutai Mountains (mean ± SE, n = 6)

指标 Indices 含水量 Water content (%) pH 有机质 Organic matter (%) 总N Total N (g·kg-1) 总P Total P (g·kg-1) 总K Total K (g·kg-1) 有效N Available N (g·kg-1) 有效P Available P (mg·kg-1) 有效K Available K (g·kg-1) 雌株 Female 40.64 ± 2.64 7.00 ± 0.09 11.23 ± 0.85 5.39 ± 0.25 0.95 ± 0.03 13.01 ± 0.14 0.39 ± 0.01 12.06 ± 1.12 0.23 ± 0.01 雄株 Male 39.78 ± 2.06 6.99 ± 0.10 8.54 ± 0.45 4.10 ± 0.34 0.90 ± 0.03 13.15 ± 0.17 0.34 ± 0.02 9.74 ± 0.66 0.24 ± 0.02 P值 Probability 0.699 0.818 0.004 0.015 0.31 0.699 0.18 0.093 1 显著性 Significance ns ns ** * ns ns ns ns ns