Long-term effects are primarily mediated by changes in tree species composition and the consequent alterations of foreststructure, productivity, and nutrient uptake.
长期影响主要是由树种组成的变化以及随之而来的森林结构、生产力和养分吸收的变化所导致的。
2
Natural forest stand structure of Pinus tabulaeformis was studied.
对油松天然林的林分结构进行了研究。
3
Built back before the civil war, Grace Episcopal Church is a stone and stucco structure out in the middle of nowhere surrounded by forest and fields.