树木吸收利用深层土壤水的特征与机制: 对人工林培育的启示

席本野,邸楠,曹治国,刘金强,李豆豆,王烨,李广德,段劼,贾黎明,张瑞娜

Characteristics and underlying mechanisms of plant deep soil water uptake and utilization: Implication for the cultivation of plantation trees

XI Ben-Ye,DI Nan,CAO Zhi-Guo,LIU Jin-Qiang,LI Dou-Dou,WANG Ye,LI Guang-De,DUAN Jie,JIA Li-Ming,ZHANG Rui-Na

表1 全球不同植被类型累积95%根系的分布深度(d95) (数据源自Schenk & Jackson, 2002a)

Table 1 The estimated depths of 95% cumulative roots (d95) for global vegetation types (data from Schenk & Jackson, 2002a)

植被类型 Vegetation type d95 (cm)* 苔原 Tundra 29 寒温带针叶林 Boreal forest 58 寒温带森林(含人工林) Cool-temperate forest (including plantations) 104 暖温带森林(含人工林) Warm-temperate forest (including plantations) 121 森林草甸 Meadows in the forest zone 40 草原 Prairie 91 半荒漠草地 Semi-desert steppe 120 温带稀树草原 Temperate savanna 140 地中海灌丛/林地 Mediterranean shrubland/woodland 171 半荒漠灌丛 Semi-desert shrubland 131 荒漠 Desert 112 干旱热带稀树草原 Dry tropical savannas 144 湿润热带稀树草原 Humid tropical savannas 94 热带半落叶和落叶林 Tropical semi-deciduous and deciduous forest 95 热带常绿林 Tropical evergreen forest 91