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Subsurface hydrological connectivity controls nitrate export flux in a hilly catchment

H B Xiao1, C Zhou2, X D Hu2

  • 1State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Huazhong Agricultural University, Wuhan 430070, PR China; Jiangxi Academy of Water Science and Engineering, Nanchang, Jiangxi 330029, PR China.

Water Research
|February 20, 2024
PubMed
Summary

Subsurface hydrological connectivity strongly controls nitrate export in hilly catchments. Nitrate flux rapidly increases when connectivity exceeds a threshold, especially with higher rainfall.

Keywords:
Nitrate exportNitrate fluxShallow groundwaterSubsurface hydrological connectivityWater quality

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