降雨量越大，根系越深、总根长越大、根系直径越大、侧根越多、根冠比越低。
The higher the precipitation, the greater the root depth, total root length and root diameter, the more lateral roots and the lower ratio of root to shoot.
银杏的鲜重增长量、叶增长量、总根长，含水量都随酸、铝胁迫程度增加而降低。
The F W increment of the plant and the leaves, the total roots length and the water content of Ginkgo all decreased with the acidity and aluminum concentrations elevated.
各处理苜蓿不同深度处根重占总根重的百分率随土壤深度的增加呈对数关系，相关系数均超过了0.9623。
There existed logarithm relations between the layer weight of roots and soil depth with the correlation factor of over 0.9623. The weight of roots decreased rapidly with the increase of soil depth.
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