参照经济生态学和循环经济的国内外实践，探讨了由减量化、再使用和资源化子系统组成的循环经济的系统结构。
A study is made on the structures of circular economy including subsystems of reduction, reuse and recycle referring to the domestic and foreign practices and economic ecology.
河岸带研究以生态学、水文学和地貌学为基础，涉及多种学科和技术，而我国河岸带的理论与实践研究均较为薄弱。
Based on ecology, geomorphology and hydrology, riparian study involves a wide range of disciplines and technologies, studies on basic theories and methods of riparian in China are very poor.
这些互补性的素质是通过对优秀学业的追求，通过在音乐、戏剧、精美艺术品、生态学和户外教育等方面的实践来培养的。
These complementary elements are acquired through the pursuit of excellence in academic work and experience in music, drama, the fine arts, ecology and outdoor education.
作者根据多年来在江苏省大丰县开展生态县规划与建设的实践，从人类生态学角度探讨了生态县的内涵、指标体系及评价方法。
Based on the human eco-planning work in Dafeng county in recent years, an eco-county concept, its scientific connotation, evaluation index and planning method are discussed.
普通生物学实习、生态学实习、社会实践、社会调查、毕业实践和毕业论文等。
Practices in General Biology and Ecology, Social Practice, Social Investigation, Graduation Practice and Graduation Thesis (Project) etc...
作者根据多年来在江苏省大丰县开展生态县规划与建设的实践，从人类生态学角度探讨了生态县的内涵、指标体系及评价方法。
Based on the human eco-planning work in Dafeng county in recent years, an eco-county concept, its scientific connotation, evaluation index and planning...
作者根据多年来在江苏省大丰县开展生态县规划与建设的实践，从人类生态学角度探讨了生态县的内涵、指标体系及评价方法。
Based on the human eco-planning work in Dafeng county in recent years, an eco-county concept, its scientific connotation, evaluation index and planning...
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