中国草地生态系统根系周转的空间格局和驱动因子

孙元丰,万宏伟,赵玉金,陈世苹,白永飞

Spatial patterns and drivers of root turnover in grassland ecosystems in China

Yuan-Feng SUN,Hong-Wei WAN,Yu-Jin ZHAO,Shi-Ping CHEN,Yong-Fei BAI

表1 不同草地类型根系周转速率统计

Table 1 Statistics of root turnover rate in different grassland types

草地类型 Grassland type 样本数 N 平均值 Mean 标准误差 SE 高寒草甸 Alpine meadow 47 0.428 0.022 荒漠草原 Desert steppe 14 0.360 0.063 草甸草原 Meadow steppe 29 0.387 0.030 典型草原 Typical steppe 57 0.246 0.019 热性草丛 Warm-temperate tussock 7 0.782 0.077