雷州半岛地下水资源特征及开采潜力评价

Characteristics and potential assessment of groundwater resources in the Leizhou Peninsula

为计算雷州半岛地下水资源量并评价其开采潜力,在分析雷州半岛水文地质条件的基础上,应用水文学与地下水动力学原理,建立雷州半岛地下水补给量和地下水允许开采量的计算模型。计算获得雷州半岛地下水的总补给量为67.79×10~8 m^3/a,地下水允许开采量为50.19×10~8 m^3/a,其中可供饮用或适当处理后可供饮用的地下水可开采量为48.92×10~8 m^3/a,占地下水允许开采量的97.47%。2015年,雷州半岛各类地下水的实际开采量为9.82×10~8 m^3/a,地下水资源的开采潜力为40.37×10~8 m^3/a,开采程度总体较低,具有较大的开采潜力。

Based on the theories of hydrology and groundwater dynamics, a numerical model of ground water recharge and allowable yield was put forward to calculate groundwater resources and evaluate its po tential in the Leizhou Peninsula. The results calculated indicate that the total recharge amount of groundw ater was 67.79×10^8m^3/a and the allowable yield of groundwater was 50.19×10^8m^3/a in the Leizhou Peninsula. The groundwater resources of drinking or drinking after appropriate treatment were 48.92×10^8m3/a, which accounted for 97.47% of the total allowable yield of groundwater. In fact, the groundwa ter yield in the Leizhou Peninsula was 9.82×10s m^3/a in 2015. However, the potential of groundwater re sources was 40.37×l0^8m^33/a. The exploitation level of groundwater resources in this area is relatively low, and therefore, the Leizhou Peninsula will have great potential for exploration of groundwater.