Natural environmental dynamics and Environmental change of the large river in central Myanmar

缅甸中部是亚洲季风的重要地带，从全新世自然环境变化的角度出发，选择了一个大型的河流流域--伊洛瓦底江流域作为研究对象，并对该流域的地貌特征进行了研究。通过对多个钻孔的沉积物分析，明确了中全新世是三角洲发育的重要时期。

The central part of Myanmar is important zone of Monsoon Asia and in the view of Holocene natural environmental change, the large river basin-Irrawwady river basinis selected a target area and we made to clarify the geomorphologic features of the river basin. We clarified that the important delta evolution period is the middle Holocene using sediment analysis of several all core borings.