基于茎流-蒸渗仪法的荒漠草原带人工灌丛群落蒸散特征

马龙龙, 杜灵通, 丹杨, 王乐, 乔成龙, 吴宏玥

Characteristics of evapotranspiration in planted shrub communities in desert steppe zone based on sap flow and lysimeter methods

MA Long-Long, DU Ling-Tong, DAN Yang, WANG Le, QIAO Cheng-Long, WU Hong-Yue

表3 蒸散与环境因子的通径分析

Table 3 Path analysis among evapotranspiration and environmental factors

直接通径系数 Direct path coefficient 间接通径系数(间接作用) Indirect path coefficient (Indirect effect) 总和 Total 净辐射 Net radiation 风速 Wind speed 土壤含水量 Soil water content 空气相对湿度 Air relative humidity 气温 Air temperature 净辐射 Net radiation 0.619 0.081 - -0.003 0.071 -0.068 0.081 风速 Wind speed -0.253 -0.077 0.006 - -0.063 -0.020 0.000 土壤含水量 Soil water content 0.312 0.145 0.141 0.051 - 0.004 -0.051 空气相对湿度 Air relative humidity 0.188 -0.217 -0.225 0.027 0.007 - -0.026 气温 Air temperature 0.163 0.180 0.306 0.001 -0.097 -0.030 -