呼伦贝尔草地植物茎秆和叶片中养分的时间动态与回收

张效境, 梁潇洒, 马望, 王正文

Temporal variation and resorption of nutrients in plant culms and leaves in Hulun Buir grassland

ZHANG Xiao-Jing, LIANG Xiao-Sa, MA Wang, WANG Zheng-Wen

表3 茎秆和叶片氮(N)、磷(P)回收效率的差异(平均值±标准差)

Table 3 Differences of nitrogen (N) and phosphorus (P) resorption efficiency in plant culm and leaf (mean ± SD)

器官 Organ 样本量 n N回收效率 N resorption efficiency (%) P回收效率 P resorption efficiency (%) 元素间差异 Differences between elements (p) 叶片 Leaf 11 65.19 ± 8.21 75.58 ± 7.22 p < 0.05 茎秆 Culm 11 61.65 ± 4.24 78.33 ± 9.90 p < 0.05 器官间差异 Differences between organs (p) - p < 0.05 p = 0.189 -