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1 20龄苹果林地土壤水分剖面
注:图b中误差线为标准差(n=3)。
Fig. 1 Soil water profiles beneath 20-yr apple orchards