基于AHP-GIS耦合模型的赣州红层盆地及周边地下水勘查靶区优选
丰章哲 , 余圣品 , 邓飞 , 万皓辉 , 陈婷
现代地质 ›› 2026, Vol. 40 ›› Issue (4) : 1244 -1256.
基于AHP-GIS耦合模型的赣州红层盆地及周边地下水勘查靶区优选
Optimization of Groundwater Exploration Targets in Ganzhou Red Bed Basin and Surrounding Areas Based on AHP-GIS Coupling Model
为解决南方红层盆地地下水勘查靶区优选难题,本研究以赣州盆地及其周边为研究区,构建了层次分析法(AHP)和地理信息系统(GIS)相互耦合的多因子综合评价模型,系统整合地质构造、地形地貌、气象水文及地表覆盖4大类10项指标,开展地下水潜力定量评价与勘查靶区优选。结果表明:研究区地下水潜力指数呈“盆心低、边缘中、山地高”的分布格局,高潜力区集中分布于东西两侧山地;含水岩组(权重0.29)与小流域面积(权重0.21)是地下水补给-富集的核心指标,构造密度与植被覆盖度协同调控地下水运移与补给能力;圈定的B1-B5高潜力靶区,均位于含水岩组适宜性评分高、汇水面积大、构造发育且植被覆盖度高的复合区域;钻孔验证显示靶区单井涌水量达611.71 ~ 1381.33 m3/d,模型计算结果与抽水试验数据高度吻合。研究结果实现了赣州红层盆地及周边地下水勘查靶区的分级评价及空间识别,可为南方红层地区地下水精准勘查与可持续开发提供可靠技术支撑。
To address the challenges in selecting optimal groundwater exploration targets in the red-bed basins of southern China,this study focuses on the Ganzhou Basin and its surrounding areas. By constructing an AHP-GIS coupled multi-factor comprehensive evaluation model,we systematically integrated 10 indicators from four major categories-geological structure,topography,meteorology-hydrology,and land cover-to conduct quantitative evaluation of groundwater potential and optimize exploration targets. The results indicate that the groundwater potential index in the study area exhibits a distribution pattern of “low in the basin center,moderate at the edges,and high in mountainous regions,”with high-potential zones concentrated in the mountainous areas on the eastern and western sides. The aquifer formation (weight 0.29) and small watershed catchment area (weight 0.21) are identified as the core factors influencing groundwater recharge and enrichment,while structural density and vegetation coverage jointly regulate groundwater movement and recharge capacity. The delineated high-potential target zones (B1-B5) are all located in composite areas characterized by high aquifer suitability scores,large catchment areas,well-developed structures,and high vegetation coverage. Drilling validation revealed that the water yield per well in these target zones ranges from 611.71-1,381.33 m3/d,with model calculations showing high consistency with pumping test data.The findings enable spatial identification and hierarchical evaluation of groundwater exploration targets in the Ganzhou red-bed basin and its surroundings,providing reliable technical support for precise groundwater exploration and sustainable development in southern red-bed regions.
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江西省水资源基础调查项目(赣自然资办函〔2024〕362号)
江西省技术创新引导类计划项目(2023KDG01010)
江西省地质局青年科学技术带头人培养计划项目(2023JXDZKJRC07)
南昌市水文地质与优质地下水资源开发利用重点实验室项目(20251A101)
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