枣麦间作系统枣树与冬小麦根系空间分布特征

采用分层挖掘法对新疆阿克苏市枣-冬小麦间作系统中果树和作物根系空间分布特征进行分析。结果表明,枣树吸收根根量在垂直方向主要集中在0～80cm土层,占总量73.11%,水平方向主要集中在距枣树0～100cm,占总量的56.31%;小麦吸收根根量在垂直方向主要集中在0～60cm土层,占总量的83.05%,水平方向分布比较均匀,距枣树50～150cm根量占总量52.30%;综合来看,距枣树50～100cm、土层0～60cm是枣树和冬小麦根系交错最严重的区域。

Spatial Distribution Characteristics of Root System of Jujube Trees and Wheat in the Jujube wheat Intercropping System

This study was conducted to discuss the spatial distribution of root system of jujube trees and wheat in jujube-wheat intercropping system of Aksu in Xinjiang using the layered digging method.The results showed that:in the vertical direction,the fine roots of jujube trees was mainly within the soil layer of 0-80 cm,the ratio of the total was 73.11%,in the horizontal direction,was mainly distributed within the distance range of 0-100 cm to jujube trees,the ratio of the total was 56.31% of the total;the fine roots of wheat in the vertical direction was mainly distributed within the soil layer of 0-60 cm,accounting for 83.05% of the total,in the horizontal direction,was more evenly distributed,from the range of 50-150 cm to jujube trees,accounted for 52.30% of the total;generally,the most serious staggered distribution range of jujube trees and wheat fine roots was the distance of 50-100 cm to the jujube tree,the soil layer of 0-60 cm.