Its research subject is tourism ecosystem which is a compound ecological system of society, economy and nature.
旅游生态学的主要研究对象是旅游生态系统，旅游生态系统是一个社会—经济—自然复合生态系统。
As an important and special ecological system on the earth, wetland is one of important living environment of human being in the transition zone between terrestrial ecosystem and aquatic ecosystem.
湿地作为地球上一种重要且独特的生态系统，处于陆地生态系统与水生生态系统的过渡地带，是人类最重要的生存环境之一。
Wetland ecosystem as juxtaposed with forests and sea of global ecological system, and is one of the three global climate and environment protection plays an extremely important role.
湿地生态系统作为与森林和海洋并列的全球三大生态系统之一，正在保护全球气候和生态环境方面发挥着极其重要的作用。
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