不同放牧条件下锡林郭勒典型草原土壤水分分布特征及降水入渗估算

李晋波,姚楠,赵英,范庭,张建国,兰志龙,易军,司炳成

Characteristics of soil water distribution and evaluation of recharge rate under different grazing history in the Xilin Gol Steppe

LI Jin-Bo,YAO Nan,ZHAO Ying,FAN Ting,ZHANG Jian-Guo,LAN Zhi-Long,YI Jun,SI Bing-Cheng

表4 包气带土壤水分特征值

Table 4 Soil water eigenvalues of vadose zone

处理 Sampling plots Cl-平均浓度 Average Cl- concentrations (mg·L-1, 0-160 cm) 补给率 Recharge rate (mm·a-1) 年平均补给 量/年降水量 Annual average supply/Annual precipitation (%) 补给上界 Upper bound (mm· a-1) 补给下界 Lower bound (mm·a-1) UG79 101.63 5.64 1.58 7.61 4.51 UG99 161.68 3.54 0.99 4.78 2.83 CG 233.88 2.45 0.68 3.31 1.96