Identification of nitrate leaching hot spots in a large area with contrasting soil texture and management

摘要: Abstract Identification of nitrate (NO 3 ) leaching hot spots is important in mitigating environmental effect NO . Once identified, the can be further analyzed detail for evaluating appropriate alternative management techniques to reduce impact on groundwater. This study was conducted identify an approximately 36,000 ha area Serik plain, which used intensively agriculture Antalya region Southern Turkey. Geo-referenced water samples were taken from 161 wells and representative soils around during period late May early June 2009. The data by classical statistics geostatistics. Both soil groundwater -N concentrations demonstrated a considerably high variation, with mean 10.2 mg kg −1 2.1 mg L groundwater, respectively. ranged 0.01 102.5 mg L well waters 1.89 106.4 mg kg soils. Nitrate spatially dependent area. Six identified general, coincided table, sand content, irrigated wheat cotton. adverse effects mitigated switching surface furrow irrigation methods sprinkler irrigation, results more efficient N use. Computer models such as NLEAP analyze practices together soil, aquifer, climate characteristics determine set alternatives mitigate these spot areas.