|
KMID : 0386819920020020262
|
|
Journal of the Institute of Health Environmental Sciences
1992 Volume.2 No. 2 p.262 ~ p.270
|
|
|
A Study on Water Pollutant Load from Nonpoint Sources of Rural Area on the Basis on USLE Analysis
|
|
|
|
|
Abstract
|
|
|
This study was performed to evaluate the applicability of USLE (Universal Soil Loss Equation) for rural area and to provide necessary information for water quality management. The management of nonpoint sources about water pollution is often
frustrated
by its costly and intricate tasks.
The results of this study applying USLE in evaluation of pollutant load from nonpoint sources of rural areas were as follows.
Rainfall energy factor (R) was 288 lower than the nationwide average 483. The values of other important factors in USLE were estimated to be 0.3 of soil erodibility factor (K), 0.9 of slope length and steepness factor (LS), 0.24 of crop
management
factor and 0.8 of conservation practices factor. Annual estimated sediment yield from the survey area was 16.7 tons/ha, and annual loads of T-N and T-P were estimated to be 87.8 kg/ha and 26.8kg/ha respectively. The maximum load of nutrients as
T-N
and
T-P was produced July to August.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|