Conversion of Forest Hillslopes into Tea Fields Increases Soil Nutrient Losses through Surface Runoff

The conversion of forest hillslopes into tea fields changes the slope structure, soil properties, and vegetation, which may increase great variations in nitrogen (N) phosphorus (P) losses through surface runoff induce agricultural non-point source pollution, particularly during first years conversion. Therefore, a natural system newly reclaimed were compared to determine land use effects on resulting N P 2013–2016. results showed that bulk density (BD) at all depths saturated conductivities (Ks) higher than system, indicating impacts soil’s physical hydraulic properties. annual volumes ratios significantly (p < 0.05), this increased was largely attributed structure property changes. total (TP), dissolved (DP), particle (PP) concentrations similar two systems, while (TN) due high fertilizer application rates system. percentages (DN) TN (PN) were, respectively, lower associated with erodibility mean (11.07 ± 4.03 kg ha−1 yr−1 1.73 0.19 yr−1) (4.51 0.66 0.78 0.18 yr−1). exponentially correlated both systems; however, coefficients determination (R2) exponential relationship between should be more stable effort dedicated reducing though when are converted fields, three