中国湿地面积大约61英亩，包括沼泽、红树林、环礁湖、河流三角洲、湖泊以及沿海一些地区，总计为国土面积的2.5%。
China has 61 million acres of wetlands, which include swamps, mangroves, lagoons, river deltas, lakes, and coastal areas that collectively cover about 2.5 percent of the country.
沉积相可分冲积扇相、扇三角洲相、湖泊相、河流相和沼泽相。
The sedimentary facies can be classified into alluvial fan, fan delta, lake, stream and swamp.
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