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博罗县下村农场地处花岗岩类型的缓坡台地，分布的土壤为赤红壤，其表土层多属中壤土，总孔隙度因利用方式不同而略有差异，待垦荒坡一般为５０％－５５％，全垦后辟为梯地的果园则＜５０％，但由于下层的较表层的低，致使剖面的土壤透水性较低，影响降水的入渗。土壤的持水能力较强，但土壤有效水量偏低，在熟化度略高的果园土壤中可占总库容量的５５％，未开垦的则仅占３０％－３５％。在有效水量范围内，当土壤吸力为８００ｋＰａ时，可释放出总有效水量的７０％－８０％。在土壤吸力分别为５０ｋＰａ、８００ｋＰａ时，土壤水容量分别降到１０－２、１０－３数量级，所以，如果连续７—８天未下雨，则土壤容易出现干旱。
Boluo County village farm is located in the granite type of gentle slope platform, the distribution of soil is reddish soil, the surface layer of mostly mid-loam, the total porosity due to the use of different ways slightly different, reclamation wasteland is generally 50% -55% However, the lower or lower surface soil resulted in lower permeability of the soil in the section, affecting the infiltration of precipitation. Soil has a high water holding capacity, but the soil available water is low, accounting for 55% of the total storage capacity in slightly soaked orchards, and only 30% -35% of uncultivated ones. In the effective water range, when the soil suction 800kPa, the total effective water release of 70% -80%. When the soil suction is 50kPa and 800kPa respectively, the soil water capacity drops to the order of 10-2 and 10-3, respectively. Therefore, the soil is prone to drought if it does not rain for 7-8 consecutive days.