图们江流域湿地空间格局变化与保护

图们江流域的自然环境较为复杂，湿地类型丰富，分布广泛。源头及上游以森林沼泽和灌丛沼泽为主，中游多为草本沼泽，下游到图们江口，湿地分布广泛，主要类型为天然和人工湖泊，草本沼泽。由于人为活动，湿地的空间分布格局发生较大的变化。为保护湿地的环境功能，必须加强湿地环境监测，合理调整湿地空间结构，保证湿地资源的可持续利用。

Spatial pattern changes and protection of wetlands in the Tumen River Basin

Different physical environment in the Tumen River Basin results in the occurrence of diverse wetland types. The source and upper reaches are dominated by forest and shrub swamps. In the middle reaches are mainly dominated by herbaceous marshes. From the lower reaches to the mouth of the Tumen River, the main types are natural lakes, reservoirs and marshes. Human activities have greatly changed the spatial pattern and ecological structure of wetlands in the whole Tumen River Basin. In order to protect the environmental functions and ensure the sustainable use of wetlands, the wetland ecological monitoring systems should be developed, the wetland spatial structure must be rationally adjusted.