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3 不同林龄苹果林地深层(4~20 m)土壤储水量和亏缺量(相对于农田)
Fig. 3 Soil water storage and soil water deficit (relative to farmland) in deep soil layers (4-20 m) beneath apple orchards with different stand ages