Ⅰ.서론 Ⅱ.하천의 자연환경 1.수질...15 1.1 서론...15 1.2 조사대상 및 방법...16 1.3 하천유역의 오염원 현황...19 1.3.1 기상현황...19 1.3.2 행정구역 현황...20 1.3.3 오염원 현황...21 1.4 수질오염도 현황...22 1.4.1 안양천...22 1.4.2 홍제천·불광천, 향동천...38 1.5 상관성 분석...52 1.5.1 안양천...52 1.5.2 홍제천...52 1.6 환경기준 달성도 평가...54 1.6.1 안양천...54 1.6.2 홍제천·불광천, 향동천...55 1.7 결론...56 1.8 참고문헌...59 2.수질의 장기 변동 추세...63 2.1 서론...63 2.2 조사대상 및 방법...64 2.2.1 조사대상...64 2.2.2 조사방법...66 2.3 결과 및 고찰...67 2.3.1 수온과 용존산소...67 2.3.2 수소이온농도...70 2.3.3 생물화학적산소요구량...71 2.3.4 화학적산소요구량...73 2.3.5 부유물질...75 2.3.6 대장균군수...78 2.3.7 총질소...80 2.3.8 총인...84 2.3.9 음이온계면활성제...86 2.4 결론...89 2.5 참고문헌...91 3.하상 퇴적물...95 3.1 서론...95 3.2 재료 및 방법...96 3.3 결과 및 고찰...100 3.3.1 하상구조...100 3.3.2 총인, 총질소 함유량...103 3.3.3 부식화도...105 3.3.4 중금속...106 3.3.5 중금속 및 유기물질 항목간의 상관성...110 3.4 결론...111 3.5 참고문헌...112 Ⅲ.하천생물상 1.수서곤충 및 기타 저서동물...119 1.1 서론...119 1.2 조사내용 및 방법...121 1.3 조사지점의 개황...125 1.3.1 안양천 수계...125 1.3.2 홍제·불광천 수계...126 1.3.3 향동천 수계...127 1.4 안양천의 수서곤충 및 기타 저서동물...128 1.4.1 수서곤충 및 기타 저서동물의 분포상과 현존량...128 1.4.2 주요 분류군별 종조성 및 변동...138 1.4.3 주요 분류군별 출현개체수의 점유율 및 변동...160 1.4.4 우점도지수 및 우점종의 변동...161 1.4.5 종다양도지수의 변동...163 1.4.6 종풍부도지수의 변동...165 1.4.7 보호대책이 필요한 종 및 그 서식지...166 1.4.8 수질오염 지표생물의 검토...166 1.5 홍제·불광천의 수서곤충 및 기타 저서동물...168 1.5.1 수서곤충 및 기타 저서동물의 분포상과 현존량...168 1.5.2 주요 분류군별 종조성 및 변동...175 1.5.3 주요 분류군별 출현개체수의 점유율 및 변동...184 1.5.4 우점도지수 및 우점종의 변동...188 1.5.5 종다양도지수의 변종...190 1.5.6 종풍부도지수의 변동...190 1.5.7 특별히 보호대책이 필요한 종 및 그 서식지...192 1.5.8 지표생물의 검토...193 1.6 향동천의 수서곤충 및 기타 저서동물...194 1.6.1 수서곤충 및 기타 저서동물의 분포상과 현존량...194 1.6.2 주요 분류군별 종조성 및 변동...198 1.6.3 주요 분류군별 출현개체수의 점유율 및 변동...198 1.6.4 우점도지수 및 우점종의 변동...200 1.6.5 종다양도지수의 변동...201 1.6.6 종풍부도지수의 변동...201 1.6.7 특별히 보호대책이 필요한 종 및 그 서식지...202 1.6.8 지표생물의 검토...202 1.7 결론...203 1.8 참고문헌...205 2.어류...205 2.1 서론...209 2.2 조사내용 및 방법...210 2.3 안양천의 어류...211 2.3.1 안양천의 어류상...211 2.3.2 주요 분류군별 출현종수 및 개체수의 점유율 변동...212 2.3.3 우점도지수 및 우점종의 변동...217 2.3.4 특기 어종...218 2.3.5 특별히 보호대책이 필요한 종 및 그 서식처...219 2.4 홍제·불광천의 어류...219 2.4.1 홍제·불광천의 어류상...219 2.4.2 향동천의 어류상...220 2.5 결론...221 2.6 참고문헌...222 3.양서·파충류...225 3.1 서론...225 3.2 조사내용 및 방법...226 3.3 양서류 및 파충류...227 3.3.1 양서류 및 파충류상...227 3.3.2 특별히 보호대책이 필요한 종 및 그 서식지...231 3.4 결론...232 3.5 참고문헌...233