Effects of lateral nitrate flux and instream processes on dissolved inorganic nitrogen export in a forested catchment: A model sensitivity analysis

2015 ◽  
Vol 51 (4) ◽  
pp. 2680-2695 ◽  
Author(s):  
Laurence Lin ◽  
Jackson R. Webster ◽  
Taehee Hwang ◽  
Lawrence E. Band
Keyword(s):  
Sensitivity Analysis ◽  
Inorganic Nitrogen ◽  
Dissolved Inorganic Nitrogen ◽  
Model Sensitivity ◽  
Nitrogen Export ◽  
Forested Catchment ◽  
Nitrate Flux

Dissolved inorganic nitrogen budget for a forested catchment at Beddgelert, North Wales

1993 ◽  
Vol 80 (1) ◽  
pp. 1-8 ◽  
Author(s):  
P.A. Stevens ◽  
T.G. Williams ◽  
D.A. Norris ◽  
A.P. Rowland
Keyword(s):  
Inorganic Nitrogen ◽  
Nitrogen Budget ◽  
Dissolved Inorganic Nitrogen ◽  
Forested Catchment ◽  
North Wales

scholarly journals Stagnation point bionanofluid slip flow model: Sensitivity analysis

2021 ◽  
Vol 60 (6) ◽  
pp. 5227-5243
Author(s):  
Sze Qi Chan ◽  
Fazlina Aman ◽  
Syahira Mansur
Keyword(s):  
Sensitivity Analysis ◽  
Stagnation Point ◽  
Flow Model ◽  
Slip Flow ◽  
Model Sensitivity

Characteristics of Non-Point Source N Export via Surface Runoff from Sloping Croplands in Northeast China

2011 ◽  
Vol 347-353 ◽  
pp. 2302-2307 ◽  
Author(s):  
Hong Xiang Wang ◽  
Yi Shi ◽  
Jian Ma ◽  
Cai Yan Lu ◽  
Xin Chen
Keyword(s):  
Point Source ◽  
Surface Runoff ◽  
Rainfall Intensity ◽  
Inorganic Nitrogen ◽  
Rainfall Amount ◽  
Organic N ◽  
Dissolved Inorganic Nitrogen ◽  
Slope Gradient ◽  
N Loss ◽  
Total N

A field experiment was conducted to study the characteristics of non-point source nitrogen (N) in the surface runoff from sloping croplands and the influences of rainfall and cropland slope gradient. The results showed that dissolved total N (DTN) was the major form of N in the runoff, and the proportion occupied by dissolved inorganic nitrogen (DIN) ranged from 45% to 85%. The level of NH4+-N was generally higher than the level of NO3--N, and averaged at 2.50 mg·L-1and 1.07 mg·L-1respectively. DIN was positively correlated with DTN (R2=0.962). Dissolved organic N (DON) presented a moderate seasonal change and averaged at 1.40 mg·L-1. Rainfall amount and rainfall intensity significantly affected the components of DTN in the runoff. With the increase of rainfall amount and rainfall intensity, the concentrations of DTN, NH4+-N and NO3--N presented a decreased trend, while the concentration of DON showed an increased trend. N loss went up with an increase in the gradient of sloping cropland, and was less when the duration was longer from the time of N fertilization.fertilization.

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