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2 根系周转速率与气候因子和土壤理化性质之间的相关系数

Table 2 Correlation coefficients of the root turnover rate with climatic factors and soil properties

气候因子 Climatic factor 土壤理化性质 Soil properties MAT MAP Gravel BD pH CEC MAP 0.50*** Gravel 0.09 0.46*** BD 0.01 -0.13 -0.16 pH 0.04 -0.12 -0.31*** -0.17* CEC 0.14 0.35*** 0.11 -0.76*** 0.11 RTR 0.45*** 0.46*** 0.39*** -0.33*** -0.18* 0.30***