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中国东北黑龙江、松花江与乌苏里江汇流处,是世界上仅存的三大黑土平原之一的三江平原,属内陆湿地与水域生态系统类型。三江湿地@庄艳平
The junction of the Heilongjiang, Songhua and Ussuri Rivers in Northeast China is the Sanjiang Plain, one of the three remaining black soil plains in the world, belonging to the inland wetland and water ecosystem types. Sanjiang wetlands @ Zhuang Yanping