近50年岱海流域气候与湖泊水文变化分析

Analysis of climate and lake hydrological change in Daihai Basin in the late 50 years

在历史资料与实地调查、采样分析的基础上,分析了岱海流域近50年来的气候变化,以及在气候变化和人类活动影响下的湖泊水位、水化学等特征的变化,并对由此产生的环境问题进行探讨。认为50年来岱海流域的气候在全球气候变化和区域人类活动的双重影响下,气温升高,降水略有减少,干旱有所加强,而湖泊水文及水化学的变化与流域上人类活动的关系更为明显。

Based on the history data, field survey and sampling data of the Daihai Basin, the global climate change and it incluced-lake water level and hydrochemical characteristics changes under human activities in the late 50 years, as well as their influences on environment were analyzed. It is presented that warmer climate and less precipitation lead to a dry tendency under the global climate changes and human activities in the Daihai Basin in the late 50 years. And human activities play an important role in the process of hydrological changes, especially in hydro chemical changes.