保护地油桃根系垂直分布的调查研究

An Investigation & Research on the Vertical Distribution of Nectarine Root System

在辽宁省营口熊岳地区采用方块取土法,进行了油桃(山桃砧木)根系垂直分布调查,其结果是:在日光温室条件下,根系垂直集中分布层在10～50 cm之间;在露地条件下根系垂直集中分布层在10～60 cm之间.日光温室油桃在0～40 cm土层中的根量占0～60 cm深土层内总根量的86.4%;其中0～30 cm范围内各土层的根量比例,均高于同深度层次的露地油桃,尤其是0～10 cm土层内根量比例比露地同层次根量比例多11.6%;而30 cm深度以下各土层中的根量比例均低于同层次的露地桃;随土层加深,根量比例逐渐减少,与露地油桃根量比例的差值逐渐加大.

An investigation of the vertical distribution of the nectarine root system with the way of taking soil was made in Yingkou Xiongyue area in Liaoning province . The results are as following; the vertical distribution of root system is 10-15cm deep in greenhouse and in open field is 10-60cm deep in 0-40 cm soil are 86. 4%, among them, the scale of root quantity deep in 0-30 cm soil are higher than those in open field, especially those deep in 0-10 cm soil are higher to 11. 6%. The deeper soil floor is , the less the scale of root quantity, so the scale difference of nectarine root system is increasing .