巴布亚新几内亚1500米海拔高地上有一片116公顷的湿地。考古学家经挖掘证实,该湿地已有七千至上万年的耕作历史。在湿地的沉积泥中考古学家发现了七千年前的香蕉植物化石,由于地下水中的硅渗入植物细胞中,形成的化石仍保持着原有的植株形态。考古学家依据有无花粉和结籽来判断 Papua New Guinea has a total area of ​​116 hectares on an altitude of 1500 meters. Archeologists confirmed that the wetlands have been cultivated for seven thousand to ten thousand years. Archeologists in the sediments of the wetlands discovered banana plant fossils seven thousand years ago. As the silicon in groundwater infiltrated plant cells, the fossils formed still retained their original plant morphology. Archeologists judge whether they have pollen or seed