常见例句The results showed that ecotonal community had developed into mixed forest, and it was near pine forest in the characteristics in 16 years ago. 边缘群落原非常接近马尾松林群落，经过16a的演变，已经发展成为混交林群落，说明边缘效应的作用。ecotonal community 交错区群落 返回 ecotonal