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以新疆塔里木河中游河岸北部河漫滩的胡杨幼林带为对象,从克隆生态学的角度,采用挖掘法、高压冲洗法及断根胁迫实验,研究了胡杨在资源异质环境中的风险分担、资源觅食与保持功能以及根源性克隆生长形态特征。结果表明:胡杨的地下根分枝类型为单轴型,同一生长方向2水平根的夹角平均约为180°,水平根与垂直根的夹角为90°～100°,水平根和垂直根的空间构型近似T形;基株的胚根周长>分株的次根周长;水平根呈侧圆台形,胡杨的2水平根之间存在着养分的传递。
Taking the Populus euphratica forest belt in the river bank of the middle reaches of the middle reaches of the Tarim River in Xinjiang as an example, from the point of view of clonal ecology, this paper studied the risk sharing, resource foraging of Populus euphratica in resources heterogeneous environment by digging method, high pressure washing method and root- And maintain function as well as the morphological features of clonal growth. The results showed that the root branching type of Populus euphratica was uniaxial, the average angle between two horizontal roots in the same growth direction was about 180 °, the angle between horizontal root and vertical root was 90 ° -100 °, horizontal root and vertical root The spatial configuration of the plant is similar to the T shape. The radicle perimeter of the plant is the circumference of the sub-root of the ramet. The horizontal root has the shape of a lateral truncated cone, and there is nutrient transfer between the two horizontal roots of the plant.