defoliation
noun [ U ] uk/ˌdiː.fəʊ.liˈeɪ.ʃən/ us/ˌdiː.foʊ.liˈeɪ.ʃən/
（尤指因使用强效化学品而出现的）落叶，凋零
the process of leaves falling off a plant, or of making this happen
Defoliation occurred when the plants were nearly mature. 落叶发生在植物接近成熟时。
Over 64 per cent of all tree species have slight to severe defoliation. 所有树种中超过64%有轻微到严重的落叶现象。
See: defoliate
- More examples
- The sand and low shrubs were obviously a result of repeated chemical defoliation.
- Trees can withstand gypsy moth defoliation for two or three years without dying.
- Complete defoliation of the immediate area would lead to deteriorating conditions for the ants.