东北大兴安岭演替初期泰加林灌草层典型植物开花物候与生长对模拟暖干化气候的响应

宋小艳,王根绪,冉飞,杨燕,张莉,肖瑶

Flowering phenology and growth of typical shrub grass plants in response to simulated warmer and drier climate in early succession Taiga forests in the Da Hinggan Ling of northeast China

SONG Xiao-Yan,WANG Gen-Xu,RAN Fei,YANG Yan,ZHANG Li,XIAO Yao

表1 模拟增温和排水处理对生长季主要环境因子的影响(平均值或平均值±标准误差)

Table 1 Simulative warming and drainage effects on the most important environmental factors (mean or mean ± SE)

对照 Control 增温 Warming 排水 Drainage 增温+排水 Warming + Drainage 空气温度 Air temperature (℃) 7.62 8.36 7.69 8.68 土壤温度 Soil temperature at 5 cm (℃) W, D 5.37 ± 0.14 5.38 ± 0.14 5.97 ± 0.04 5.91 ± 0.13 土壤水分 Soil moisture at 0-10 cm (%)W, D 45.52 ± 2.31 38.16 ± 6.82 25.36 ± 2.47 19.52 ± 1.05 最大融化深度 Maximun thaw depth (cm)D 62.4 ± 1.2 65.1 ± 1.2 57.5 ± 1.8 55.2 ± 1.6 生长季平均水位 Mean water table (cm) -20.0 ND -26.3 ND