Tracing the Sources and Fate of NO<sub>3</sub><sup>–</sup> in the Vadose Zone–Groundwater System of a Thousand-Year-Cultivated Region
Xiaoqian Niu, Xiaoxu Jia, Xiaofan Yang, Jiao Wang, Xiaorong Wei, Lianhai Wu, Mingan Shao
Abstract
might reach the aquifer in the near future in areas with recent FN loading, especially those under cropland-to-orchard transition or where the vadose zone is relatively thin. This study suggests that future agricultural land-use transitions from croplands to orchards should be promoted with caution in areas with shallow vadose zones and coarse soil texture.
Topics & Concepts
Vadose zoneGroundwaterAquiferHydrology (agriculture)Environmental scienceGroundwater pollutionGroundwater rechargeGeologyWater tableGeotechnical engineeringGroundwater and Isotope GeochemistryGroundwater flow and contamination studiesHydrology and Watershed Management Studies