不同抚育强度对侧柏林下土壤养分含量的影响

摘要

Taking Platycladus orientalis plantation in Chaoyang County of Liaoning Province as research objects,the soil nutrient contents of the two soil layers (0-10 &10-20 cm) undergrowth were studied by conducting different tending intensities.Result shows that different tending intensities can affect the pH value after tending on two soil layer.Effect of tending on organic matter content at 0-10 cm soil layer is significant, but have no significant effect on 10-20 cm soil layer.The content of N, P & K in soil is the highest at 0-10 cm soil layer, and the weak tending is not obvious.The nutrient content of 10-20 cm soil layer is the highest.%以辽宁省朝阳县地区的侧柏人工林为研究对象,通过实施不同强度的抚育来研究林下0~10 cm和10~20 cm两个土层的土壤养分含量.结果表明,不同的抚育强度都能对两个土层抚育后的pH值产生影响.抚育对0~10 cm土层有机质含量影响显著,而对10~20 cm土层无显著影响.土壤中氮磷钾养分含量,在0~10 cm土层以强度抚育含量最高,弱度抚育作用不明显,10~20 cm土层的养分含量以中度抚育最高.