The term 'synusia 'was defined so broadly that confusion in use of the concept resulted.
“层片”一词的定义过于广泛，以致在层片概念的应用中引起混乱。
2
Layer structure, synusia structure and height - classes structure and dynamics of degraded ecosystem were studied.
对退化生态系统的层次结构、层片结构、高度级结构及其动态等进行了研究。
3
The results showed that the more serious the community degraded, the simpler the layers, the synusia and the height- classes structures in community were.