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洛惠渠灌区地形受黄河、渭河、洛河和涑水河冲积影响,形成三级阶地,地势由北向南倾斜,南北高差达48米。每级阶地上都有大小不同的低洼地段。微地形起伏不平,变化极为复杂。这些洼地往往成为地表径流与地下径流汇聚和盐碱地分布的地区。灌区地下水流向总的来说由北、西北向南、东南方向流,并与地表坡度大略一致。坡降1/2,000至1/500,地下水深一般在1—10米。地下水埋藏深度小于2.0米者占总面积
Luohui drainage area topography affected by the Yellow River, Weihe River, Luohe and Huangshuihe alluvial effects, the formation of terraces, topography from north to south tilt, north-south elevation of 48 meters. Each terrace has different sizes of low-lying lots. Micro topography ups and downs, changes are extremely complex. These depressions are often the areas where surface runoff, groundwater runoff and salinization are distributed. The groundwater flow in the irrigated area generally flows from north to northwest to south and southeast direction, and is roughly consistent with the surface slope. Pitch down 1 / 2,000 to 1/500, groundwater depth is generally 1-10 meters. Groundwater depth of less than 2.0 meters in total area