Trends of groundwater temperature

Against the background of the discussion on the effects of climate change, the data on groundwater temperatures for the period 1997 to 2009 were analysed for changes. 71 out of 128 groundwater bodies were analysed for the trend analysis. It was found that a significant temperature increase of about 0.7 °C occurred in more than half of the groundwater bodies examined. The results correlate with the development of the air temperature, which is why rising groundwater temperatures must be expected in the coming decades. It is known that even small-scale factors influence the development of groundwater temperature. However, no direct link could be identified in this work.在气候变化影响效应的研讨背景下，本研究针对1997—2009年的地下水水温数据展开变化趋势分析。本次趋势分析共纳入128处地下水水体中的71处开展研判。结果显示，超半数受监测的地下水水体出现了约0.7℃的显著水温升幅。该结果与气温变化态势高度契合，因此未来数十年内地下水水温持续上升或将成为可预见的趋势。已有研究证实，即便小尺度因子也会对地下水水温的变化产生影响，但本研究未在此类因子与水温变化间建立直接关联。