As the main body of the land ecosystem, the forest ecosystem is playing the pivotal role in the whole ecosystem, its service function value appraisal research is a current hot spot.
森林作为陆地生态系统的主体，在全球生态系统中发挥着举足轻重的作用，其服务功能价值的评价是当前研究的一个热点。
The sentence patterns which help realize the appraisal function are mainly as follows: exclamatory sentences, which often plays a role in commanding the whole text or a certain local scene;
帮助评议功能实现的句式主要有感叹句，其常常能起到统摄全文或者某个局部场景的作用；
The sentence patterns which help realize the appraisal function are mainly as follows: exclamatory sentences, which often plays a role in commanding the whole text or a certain local scene;
帮助评议功能实现的句式主要有感叹句，其常常能起到统摄全文或者某个局部场景的作用；
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