The major factors to affect windthrow contain the biologic mechanical attribute of tree, the mutual action of soil and base, disturbance of wind and so on.
影响风倒的主要因素包括林木的生物力学特性、根系与土壤的相互作用和风的扰动等。
2
Mechanical mechanism of the windthrow of scale spruce in the northeast area have been opened out in the study, which combine mechanics with the biology properties in tree.