摘要
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。
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.
出处
《西北农业学报》
CAS
CSCD
北大核心
2011年第12期54-58,共5页
Acta Agriculturae Boreali-occidentalis Sinica
基金
"十一五"国家科技支撑计划课题(2007BAD36B03)
"十一五"自治区科技重大专项(200731136-2)
关键词
枣麦间作
枣树
冬小麦
根系
根长密度
空间分布特征
Jujube-wheat intercropping system
Jujube
Wheat
Fine roots
Root length density
Spatial distribution characteristics