黄土塬区苹果种植对深剖面土壤水分和地下水补给的影响
程立平, 王亚萍, 齐光

Impacts of apple tree planting on deep soil water content and groundwater recharge for the Loess Tableland of China
CHENG Liping, WANG Yaping, QI Guang
图4 黄土深剖面氯离子和氚分布
注:图b数据来源于同一区域研究文献[20]。
Fig. 4 Distributions of chloride and tritium for deep loess profiles