Long-term effects are primarily mediated by changes in tree species composition and the consequent alterations of forest structure, 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。
Forest Structure is different, its Function is different.
森林结构的不同，其森林功能也不同。
A dialog management model based on the topic forest structure is presented here, which can well handle those issues with mixed initiative dialog control.
该文提出基于主题森林结构的对话管理模型，较好地处理了上述问题，能实现对话过程的混合主导。
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