Soil water content, soil strength and the growth of elm root suckers.
Soil water content, soil strength and the growth of elm root suckers.
复制标题
土壤含水量、土壤强度与榆根吸盘的生长。
DOI：
10.1093/treephys/11.2.161
复制
发表时间：
1992
期刊：
影响因子：
4
通讯作者：
R. Sands
中科院分区：
文献类型：
--
作者：
D. Yau;R. Sands
荷兰榆树（Ulmus x hollandica Mill.）根吸盘的伸长率随树龄、土壤含水量和净生长压力（膨胀压力超过土壤抑制压力）的增加而增加，随土壤强度的增加而降低。随着年龄的增长，吸盘伸长率的增加可能是由于渗透势的降低导致膨胀压力的增加。土壤强度的增加增加了渗透调节的速度。吸盘伸长率随土壤含水量的增加而增加，可能是由于吸盘水势的增加和土壤强度随土壤含水量的增加而降低。
The elongation rate of root suckers of Dutch elm (Ulmus x hollandica Mill.) increased with increasing age of the sucker, soil water content and net growth pressure (the excess of turgor pressure over soil restraining pressure) and it decreased with increasing soil strength. The increase in the rate of sucker elongation with age was probably the result of a decrease in osmotic potential causing an increase in the turgor pressure. Increasing soil strength increased the rate of osmotic adjustment. The increase in the rate of sucker elongation with increasing soil water content was probably due to an increase in the water potential of the sucker and a decrease in soil strength associated with increasing soil water content.