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2009년 하계 황해투기해역에서의 해양환경 변화에 관한 연구

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Alternative Title
The Characteristics of Environmental Changes in Ocean Dumping Area at Yellow Sea in summer 2009
Abstract
This thesis is focused on the impacts of waste dumping on water and sediment quality in the dumping area of the Yellow Sea from 1988. The environmental variables and parameters of the dumping and reference areas in the Yellow Sea were measured during July 2009 and analyzed.
In the study area, density stratification defended greatly on temperature rather than salinity. Yellow Sea Bottom Cold Water were found below 7℃ at the depth of 30m in all the observation points. The vertical distributions of salinity showed a sudden drop of 0.5∼1.5psu at the 20m depth. It seemed to be influenced by an increase in summer precipitation and also a southward shift of the Yellow River.
The chemical environment of the study area showed that deeper water has low pH, high SS and COD, low DO and an accumulation of nutrients in the bottom layer. Most notably, phosphate values at the bottom were higher than the reference area. The reason for the increase appears to be due to the disposal of livestock, sludge, excreta from 2002, rapid consumption of nitrogen and slow biogeochemical circulation. The data also suggests a eutrophic state is occuring at the bottom layer.
Sediment COD values exceeded 20㎎O2/g-dry, Japan Fisheries Environmental Standard, at stations 3 and 5. The concentration of Cr exceeded ERL(effect range-low) of the NOAA at station 3 and 4. It seems to be influenced by leather process wastes.
The correlation coefficients among the water content and Co, Cr, Cu, Fe, Hg, Ni, Zn concentration in the study area were very high. So, they are staying as dissolved matter.
The average concentration of TIN and phosphates at the bottom layer below the thermocline had incersed from 3.7μM to 9.8μM and from 0.5μM to 1.1μM, which correspond to 2.6, 2.2 times accumulation in the dumping area before 1988.
Continued disposal of waste into the Yellow Sea has impacted the northwest reference area(st.1) as a result of organic oxidation and heavy metal diffusion. In addition, at the station 3, the concentration of Cr exceeded the ERL(effect range-low) of the NOAA. Therefore, station 3 seems to need a rest zone appointment.
Author(s)
고혁준
Issued Date
2010
Awarded Date
2010. 8
Type
Dissertation
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000005165
Alternative Author(s)
Go, Hyuk Jun
Affiliation
제주대학교 일반대학원
Department
대학원 해양학과
Advisor
최영찬
Table Of Contents
목 차

List of Figures ⅲ
List of Tables ⅴ
Abstract ⅵ

Ⅰ. 서론 1

Ⅱ. 재료 및 방법 5
2.1. 조사방법 5
2.2. 해수시료 분석방법 8
2.3. 해저퇴적물시료 분석방법 9

Ⅲ. 결과 및 고찰 10
3.1. 연구해역의 해수 특성 10
3.1.1. 물리적 환경특성 10
3.1.2. pH 16
3.1.3. 부유물질(SS) 및 휘발성부유물질(VSS) 16
3.1.4. 화학적산소요구량(COD) 17
3.1.5. 용존산소(DO) 및 용존산소포화율 17
3.1.6. 엽록소 a(Chlorophyll a) 18
3.1.7. 무기영양염류의 분포 특성 및 영양상태 평가 21
3.1.8. 해수 중 미량금속 분포 31

3.2. 주변해역과 투기해역의 표층퇴적물 분포특성 33
3.2.1. 표층퇴적물 함수율, 강열감량, COD 함량과 분포 33
3.2.2. 표층퇴적물 금속원소의 함량과 분포 36

3.3. 주변해역과 투기해역 농도의 연변화 44

Ⅳ. 결론 48

참고문헌 50
감사의 글 54
Appendix 55
Degree
Master
Publisher
제주대학교 일반대학원
Citation
고혁준. (2010). 2009년 하계 황해투기해역에서의 해양환경 변화에 관한 연구
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Faculty of Earth and Marine Convergence > Earth and Marine Science
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