PERAN HIDROLOGI TERHADAP TANAH DAN VEGETASI DI PANTAI KILI – KILI TULUNGAGUNG
Keywords:
Hydrology, Aquifers, Alluvial Soils, VegetationAbstract
Kili-Kili Beach in Trenggalek Regency is a coastal area with complex hydrological dynamics due to the interaction of seawater, river water, groundwater, and community activities. These dynamics affect soil characteristics and coastal vegetation patterns. This study aims to analyze hydrological conditions, physical and chemical properties of the soil, vegetation patterns, and the relationship of hydrology to soil and vegetation at Kili-Kili Beach. The study used a quantitative descriptive approach with a case study method. Data were obtained through surface water quality measurements (temperature, pH, DO, salinity, and TDS), Audio Magnetotelluric (ADMT) interpretation for aquifer identification, physiographic and soil property analysis, and vegetation analysis using the quadratic method. The results showed that surface water in the coastal zone is unsuitable for consumption due to high salinity (±3%), river water is only suitable for agriculture, while water in the residential zone is of good quality and suitable for consumption. ADMT interpretation indicates the presence of a potential deep aquifer at a depth of 80–190 m as the main source of fresh water. The soil is classified as alluvial with a silt loam texture with moderate porosity, moderately fast permeability, a slightly acidic pH, and very low organic carbon content. Vegetation is dominated by sea pine and sea pandanus with a moderate diversity index (H' = 1.10). Salinity gradient is the main factor controlling soil properties and vegetation zoning.
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