单 位：
河南省林业科学研究所;中国林业科学研究院林业研究所
摘 要：
本文对太行山低山丘陵区苹果 -小麦复合系统内根系时空分布特征进行了研究。结果表明 :复合系统内小麦吸水根根系在垂直方向上有根系密集区和根系稀疏区之分 ,分属 0 4 0cm和 4 0 80cm土层 ,分别占总量的 81.93%和 18.0 7% ;在水平方向上 ,根量随带距的变化大致呈“两侧多、中间少”的分布趋势 ,并随生育期的延续 ,这种水平差异趋势越来越显著 ;在时间上 ,灌浆期是小麦根量“由多向少”变化的转折时期
译 名：
Spatial and Temporal Distribution Characteristics of Wheat Roots in Apple-wheat Intercropping
作 者：
ZHANG Jin song 1, MENG Ping 1, YIN Chang jun 1, MA Xiao qi 2,FENG Wei dong 2 (1.Research Institute of Forestry, CAF, Beijing\ 100091, China; 2. Forestry Institute of Henan Province, Zhengzhou\ 450003, Henan China)
关键词：
spatial and temporal distribution; wheat roots; apple wheat intercropping
摘 要：
The spatial and temporal distribution characteristics of wheat fine roots in the apple wheat intercropping were conducted in the hilly region of TaiHang Mountain. The results showed that the wheat roots system were characterized with densely and sparsely distributed zone vertically , belonging to 0 40 cm and 40 80 cm in soil depth, where the amount of the fine roots accounted for 81.93 % and 18.07% of the total respectively; the horizontal difference of fine roots, characterized with the closer to the tree row and the higher wheat fine root density was more significant with the wheat stage; the filling stage was the turning point in the wheat root growth.
