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在建平县油松沙棘混交林面积已达13.83万亩,是辽西地区又一稳定的人工混交林类型。通过对不同立地条件上的油沙混交林、油松纯林的地上、下部生长状况、土壤理化性质及气象、水土保持指标等,进行的定位试验,调查分析表明,油沙混交林较同龄油松纯林平均树高、胸径分别高153%和191%;土壤有效含水量增加45.6%,透水性增大65.4%,土壤有机质、含氮量增加30.26%、55.5%;减水减沙效果分别高55.4和15.8倍。
In Jianping Pinus tabulaeformis mixed seabuckthorn area has reached 13.83 million mu, is the Liaoxi area another stable mixed type of man-made forest. According to the location experiment of the aboveground and understory growth conditions, soil physical and chemical properties, meteorology and soil and water conservation indexes of the oil and sand mixed forest on different site conditions and the pure stands of Pinus tabulaeformis forest, the investigation and analysis showed that the oil-sand mixed forest was more oil- The mean tree height and DBH of pine forests were 153% and 191% respectively higher than those of the control. The effective soil water content increased 45.6%, the water permeability increased 65.4%, and the soil organic matter and nitrogen content increased 30.26% and 55.5% respectively. 55.4 and 15.8 times higher.