کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5746320 | 1618794 | 2017 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of sources and seasonal variability of organic matter in Lake Sihwa and surrounding inland creeks, South Korea
ترجمه فارسی عنوان
شناسایی منابع و تغییرات فصلی مواد آلی در دریاچه سیهوا و مناطق مرزی دره کره جنوبی کره جنوبی
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کلمات کلیدی
DTNhLFPLFTOCDOCHIXδ13CfLFPOCδ15N - d15Nδ34S - d34SPCA - PCAPrincipal component analysis - تحلیل مولفههای اصلی یا PCAanalysis of variance - تحلیل واریانسANOVA - تحلیل واریانس Analysis of varianceStable carbon isotopic composition - ترکیب ایزوتوپ کربن پایدارchemical oxygen demand - تقاضای اکسیژن شیمیاییbiodegradability - زیست تخریب پذیریSIAR - سیرhumification index - شاخص تندرستیDOM - قضاوتDissolved organic matter - ماده آلی حل شدهOrganic matter sources - منابع ماده آلیStable isotope ratio - نسبت ایزوتوپ پایدارParticulate nitrogen - نیتروژن تیتانیومFluorescence property - ویژگی فلورسانسCod - کادوParticulate organic carbon - کربن آلاینده کربنDissolved organic carbon - کربن آلی حل شدهdissolved total nitrogen - کل نیتروژن حل شدهTotal organic carbon - کل کربن آلی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
Coastal areas are subjected to significant allochthonous organic matter deposits from surrounding areas; however, limited information is available on the source and delivery of this organic matter. In this study, to assess seasonal changes in the sources of organic matter in Lake Sihwa (Korea), biodegradability, fluorescence property, and stable isotopic compositions (carbon, nitrogen, and sulfur) of the organic matter were determined. Water samples were collected from the inner lake (n = 9) and inland creeks (n = 10) in five separate events, from November 2012 to October 2013. Organic matter originating from rural, urban, and industrial areas was examined as the potential sources. The organic matter contents and biodegradability in the industrial area were the highest, whereas low concentrations and poor biodegradability of organic matter were found in the rural area, and moderate properties were observed in the urban area. In Lake Sihwa, a large concentration of total organic matter and enhanced biodegradability were observed during March and August. However, main source of organic matter differed between the sampling events. The largest contribution of organic matter, deriving from marine phytoplankton, was found in March. On the other hand, in August, the organic matter originating from the industrial area, which is characterized by high levels of heavy metals and persistent organic pollutants, was significantly increased. Our results could be useful to enhance the management of water bodies aimed at reducing the organic matter concentrations and improving the water quality of Lake Sihwa, and even that of the Yellow Sea.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 177, June 2017, Pages 109-119
Journal: Chemosphere - Volume 177, June 2017, Pages 109-119
نویسندگان
Yeonjung Lee, Seongjin Hong, Min-Seob Kim, Dahae Kim, Bo-Hyung Choi, Jin Hur, Jong Seong Khim, Kyung-Hoon Shin,