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논문 기본 정보

자료유형
학술저널
저자정보
Ahn-Sung Roh (Gyeonggido Agricultural Research & Extension Services) Jung-Su Park (Gyeonggido Agricultural Research & Extension Services) Young-Su Park (Gyeonggido Agricultural Research & Extension Services) Ok-Jung Ju (Gyeonggido Agricultural Research & Extension Services) Min-Woo Shin (Gyeonggido Agricultural Research & Extension Services) Min-Kyeong Kim (Rural Development Administration) Soon-Kun Choi (RDA)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제52권 제4호
발행연도
2019.11
수록면
369 - 374 (6page)

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This study aimed to identify the changing trends in the agricultural water quality of the major watersheds in Gyeonggi Province over a 10-year period ranging from 2007 to 2016. The results of water quality analysis of the study sites revealed that the mean chemical oxygen demand was 3.8 mg L<SUP>-1</SUP>, with the median values being 3.5 mg L<SUP>-1</SUP>. The mean chemical oxygen demand in April, July, and October were 4.7, 3.8, and 3.1 mg L<SUP>-1</SUP>, respectively, and chemical oxygen demand values trended to decrease from April to October. The mean and the median electrical conductivity were 0.22 dS m<SUP>-1</SUP>. The mean electrical conductivity values were slightly higher in April and lower in October, and there was no yearly fluctuation. The mean and median values of the T-N (Total Nitrogen) content were 3.3 mg L<SUP>-1</SUP> and 3.0 mg L<SUP>-1</SUP>, respectively. The mean and median values of the T-P (Total Phosphorous) content were 0.10 mg L<SUP>-1</SUP> and 0.06 mg L<SUP>-1</SUP>, respectively, and there was no tendency to increase or decrease during the April, July and October.

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ABSTRACT
Introduction
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UCI(KEPA) : I410-ECN-0101-2020-523-000120861