黄土高原半湿润区刺槐树干液流对人工截留降雨输入及环境因子的响应

何秋月,闫美杰,张建国,杜盛

Sap flow of Robinia pseudoacacia in response to rainfall exclusion treatment and environment factors in a sub-humid area in Loess Plateau

Qiu-Yue HE,Mei-Jie YAN,Jian-Guo ZHANG,Sheng DU

表3 两试验时段平均液流通量密度与空气水汽压亏缺拟合直线斜率的差异性检验

Table 3 Difference analyses on regression parameters for sap flux density vs. vapor pressure deficit

年份 Year 样树1-3 Sample tree 1-3 样树4-6 Sample tree 4-6 斜率差异检验 Difference between slopes 2014 a = 8.41 a = 6.78 NS R2 = 0.64 R2 = 0.63 p < 0.000 1 p < 0.000 1 2015 a = 12.33 a = 5.34 p < 0.001 R2 = 0.59 R2 = 0.69 p < 0.000 1 p < 0.000 1