本文在调查鄱阳湖区湿地生态环境特征的基础上，分析两种控湖水位运行方案对湖区湿地生态环境的影响。
After analysised the characteristic of wetland ecosystem in Poyang Lake, we state the impact of two water lever operation scheme to the wetland ecosystem in Poyang Lake.
在本文中，对关键种的概念进行了讨论，并介绍了关键种的典型特征及其在群落和生态系统中的判别。
This paper discussed the keystone species concept and introduced the typical characteristics of keystone species and their identification in communities or ecosystems.
一个舞种是否成立，是要看它是否具备相对完备的舞蹈形态，有着怎样的独特生态环境中的历史成因，以及有没有形成独具一格的审美特征。
The survival of a genre of dance depends on its comparatively comprehensive dance pattern, historical cause of its formation in special ecological environment and unique aesthetic features.
在本研究中，我观察了86种植物的繁殖物候（主要是开花和结果）来检测在热带季节雨林中繁殖物候参数与生态条件及植物繁殖特征之间的关系。
In this study, reproductive phenology of 86 species was studied to examine the relationships between phenological characters and ecological traits in a tropical seasonal rain forest.
在本研究中，我观察了86种植物的繁殖物候（主要是开花和结果）来检测在热带季节雨林中繁殖物候参数与生态条件及植物繁殖特征之间的关系。
In this study, reproductive phenology of 86 species was studied to examine the relationships between phenological characters and ecological traits in a tropical seasonal rain forest.
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