摘要
在滇池采取的沉积物剖面经磁化率测定发现，磁化率曲线Ａ３亚段低值点群揭示了一个昆明地区２００年前干旱期的存在。它延续约２００年，表现为湖面萎缩，甚至滇池干涸，说明近代滇池地区气候导致的环境变化剧烈；我们面对的不仅是水质污染；从长远的规划的角度考虑，水量不足的威胁可能是更加严重的问题。
? The cores taken from centre part of Lake Dianchi were sectioned and examined by a multidisciplinary approach,in which magnetic susceptibility dates reveal the details of environmental changes in Kuming regionSubmember A3 of lake sediment profile has low values in magnetic susceptibility indicating low lake level and drying climate conditionsThe arid climate period lasted for 200 years and continued until 200 yr BP
出处
《云南地理环境研究》
1998年第1期20-25,共6页
Yunnan Geographic Environment Research
基金
云南省科委国际科技合作项目
云南省应用基础研究基金
