Nitrogen losses with surface runoff from farmlands in hilly areas around Tai Lake

Peng Wang; Chao Gao; Qi Yao; Long Xi Han; Xia Shen

Nitrogen losses with surface runoff from farmlands in hilly areas around Tai Lake

Peng Wang, Chao Gao, Qi Yao, Long Xi Han, Xia Shen

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Characteristics of nitrogen loss with surface runoff from farmlands in hilly areas around the Tai Lake were studied. The results indicate that the concentration of TN varied with surface runoff and its peak lagged behind that of the latter in time. At the prior period of runoff, NH₃-N and NO₃^--N were similar in concentration, but later on NO₃^--N rose while NH₃-N declined slowly. The concentrations of NO₃ ^--N were relatively low and fell down quickly with the time. As for TN and NO₃^--N, contents of the dissolved were higher than those of the suspended, whereas in the case of NH₃-N concentration, the dissolved was equivalent to that of the suspended. The average content of inorganic nitrogen weighted by runoff was higher than organic nitrogen. Organic nitrogen, especially the suspended form, showed the characteristic of varying with the flux of runoff.

Original language	English
Pages (from-to)	46-49
Number of pages	4
Journal	Rural Eco-Environment
Volume	21
Issue number	2
State	Published - 25 Apr 2005
Externally published	Yes

Keywords

Inorganic nitrogen
Non-point source pollution
Organic nitrogen
Overland runoff

Cite this

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title = "Nitrogen losses with surface runoff from farmlands in hilly areas around Tai Lake",

abstract = "Characteristics of nitrogen loss with surface runoff from farmlands in hilly areas around the Tai Lake were studied. The results indicate that the concentration of TN varied with surface runoff and its peak lagged behind that of the latter in time. At the prior period of runoff, NH3-N and NO3--N were similar in concentration, but later on NO3--N rose while NH3-N declined slowly. The concentrations of NO3 --N were relatively low and fell down quickly with the time. As for TN and NO3--N, contents of the dissolved were higher than those of the suspended, whereas in the case of NH3-N concentration, the dissolved was equivalent to that of the suspended. The average content of inorganic nitrogen weighted by runoff was higher than organic nitrogen. Organic nitrogen, especially the suspended form, showed the characteristic of varying with the flux of runoff.",

keywords = "Inorganic nitrogen, Non-point source pollution, Organic nitrogen, Overland runoff",

author = "Peng Wang and Chao Gao and Qi Yao and Han, {Long Xi} and Xia Shen",

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TY - JOUR

T1 - Nitrogen losses with surface runoff from farmlands in hilly areas around Tai Lake

AU - Wang, Peng

AU - Gao, Chao

AU - Yao, Qi

AU - Han, Long Xi

AU - Shen, Xia

PY - 2005/4/25

Y1 - 2005/4/25

N2 - Characteristics of nitrogen loss with surface runoff from farmlands in hilly areas around the Tai Lake were studied. The results indicate that the concentration of TN varied with surface runoff and its peak lagged behind that of the latter in time. At the prior period of runoff, NH3-N and NO3--N were similar in concentration, but later on NO3--N rose while NH3-N declined slowly. The concentrations of NO3 --N were relatively low and fell down quickly with the time. As for TN and NO3--N, contents of the dissolved were higher than those of the suspended, whereas in the case of NH3-N concentration, the dissolved was equivalent to that of the suspended. The average content of inorganic nitrogen weighted by runoff was higher than organic nitrogen. Organic nitrogen, especially the suspended form, showed the characteristic of varying with the flux of runoff.

AB - Characteristics of nitrogen loss with surface runoff from farmlands in hilly areas around the Tai Lake were studied. The results indicate that the concentration of TN varied with surface runoff and its peak lagged behind that of the latter in time. At the prior period of runoff, NH3-N and NO3--N were similar in concentration, but later on NO3--N rose while NH3-N declined slowly. The concentrations of NO3 --N were relatively low and fell down quickly with the time. As for TN and NO3--N, contents of the dissolved were higher than those of the suspended, whereas in the case of NH3-N concentration, the dissolved was equivalent to that of the suspended. The average content of inorganic nitrogen weighted by runoff was higher than organic nitrogen. Organic nitrogen, especially the suspended form, showed the characteristic of varying with the flux of runoff.

KW - Inorganic nitrogen

KW - Non-point source pollution

KW - Organic nitrogen

KW - Overland runoff

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M3 - Article

AN - SCOPUS:18944366356

SN - 1001-5906

VL - 21

SP - 46

EP - 49

JO - Rural Eco-Environment

JF - Rural Eco-Environment

IS - 2

ER -

Nitrogen losses with surface runoff from farmlands in hilly areas around Tai Lake

Abstract

Keywords

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