Different physical environment in the Tumen River Basin results in the occurrence of diverse wetland types.
图们江流域的自然环境较为复杂，湿地类型丰富，分布广泛。
Human activities have greatly changed the spatial pattern and ecological structure of wetlands in the whole Tumen River Basin. In order to protect thee...
由于人为活动，湿地的空间分布格局发生较大的变化。
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