It embodied the composition characteristics of bird communities in forest-stepped ecotone from forest zone to steppe zone gradually trastion.
体现了森林草原交错带鸟类群落的组成特点，即由森林鸟类逐渐向草原鸟类过渡。
It embodied the composition characteristics of bird communities in forest-stepped ecotone from forest zone to steppe zone gradually trastion.
体现了森林草原交错带鸟类群落的组成特点，即由森林鸟类逐渐向草原鸟类过渡。
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