Conductivity Albufera of Valencia lagoon

The Albufera of Valencia (Eastern Spain) is an oligohaline coastal lagoon, surrounded by an ancient marsh transformed into rice fields about 200 years ago. The surficial water inflows maintain the conductivity in steady values around the annual average, with occasional increases in periods of droughts. The concentration of chloride is the variable most related to conductivity. The data contains the series of its long-term conductivity changes. We have observed that there has been a significant trend toward an increase of minimum values in the last decade, which could indicate a decrease in freshwater inputs to the lagoon. The measurement of this variable would be a good indicator of the alterations that may occur in a foreseeable scenario of climate change with a decrease in both rainfall and freshwater inflows.

西班牙东部巴伦西亚的阿尔武费拉湖是一处寡盐沿海潟湖（oligohaline coastal lagoon），其周边约200年前的古老沼泽已被改造为稻田。表层淡水流入使该潟湖的电导率（conductivity）维持在年平均值附近的稳定水平，仅在干旱时期偶有升高。氯离子浓度是与电导率相关性最强的变量。本数据集包含该潟湖电导率的长期变化序列。我们观测到，近十年来该潟湖电导率的最小值呈现显著上升趋势，这或暗示流入该潟湖的淡水补给量有所减少。在降雨与淡水补给均减少的可预见气候变化情景中，对该变量的监测可作为潟湖生态系统潜在变化的良好指示指标。