[논문]온배수가 유입되는 계류 (부소천)에서 부착조류의 생태학적 특성

전경혜; 김난영; 황순진; 신재기

doi:10.11614/ksl.2017.50.2.216

온배수가 유입되는 계류 (부소천)에서 부착조류의 생태학적 특성
Ecological Characteristics of Periphyton Community in a Small Mountain Stream (Buso) Inflowing Thermal Wastewater Effluent, Korea 원문보기

생태와 환경 = Korean journal of ecology and environment, v.50 no.2, 2017년, pp.216 - 237

전경혜 (건국대학교 환경보건과학과) , 김난영 (건국대학교 환경보건과학과) , 황순진 (건국대학교 환경보건과학과) , 신재기 (한국수자원공사 낙동강남부권관리단)

초록
AI-Helper

온천의 온배수는 오래 전부터 전 세계를 통해 지질학, 육수학 및 수생태학에서 온도구배와 담수조류의 관계에서 많은 관심을 갖게 한 분야이었다. 반면에, 우리나라는 인공온천이 전국적으로 개발되었으나 아직까지 이에 대한 연구가 미진한 실정에 있다. 본 연구는 2015년 12월부터 2016년 9월까지 경기도 포천에 위치한 계류(부소천)의 최상류 구간 4개 지점(BSU (상류), HSW (온천폐수 방류구), BSD1~2 (하류))에서 부착조류 생태에 온배수의 시공간적 영향을 파악하고자 매월 조사하였다. 조사기간 동안 온배수의 수온 영향권은 <1.0 km이었고, 동시에 N P 영양염의 주요 공급원으로 작용하였다. 그 영향은 저온 갈수기(12월~3월)에 우세하였고, 고온 풍수기 (7월~9월)에 약세를 보여 다소 계절적인 특성을 반영하였다. 이러한 환경에서 부착조류 군집은 총 59속 143종으로 구성되었다. 이 중에서 규조류가 21속 83종 (58.0%), 남조류가 9속 21종(14.7%) 및 녹조류가 25속 32종(22.4%)을 차지하였다. 또한, 상대도수가 >10%인 분류군은 총 24속 31종이었으며, 시공간적 분포는 수온 ($5^{\circ}C$와 $15^{\circ}C$) 및 유속 ($0.2m\;s^{-1}$와 $0.8m\;s^{-1}$)과 밀접한 관련성을 가졌다. 그리고 연중 높은 수온을 유지하는 기초 환경에서 수중의 $PO_4$에 친화력이 크거나, $NO_3-PO_4$가 풍부한 하천 서식처를 선호하는 분류군이 우점하였다. 결과적으로, 부소천은 온배수에 의해 연중 과영양 및 과열 오염이 지속되어 국내에서 조사된 선행 부착조류 생태연구의 결과와 비교할 때 오염이 심한 상태로 평가되었고, 상 하류 간에 계절적으로 동질성 (하계~추계)과 이질성(동계~춘계)이 반복되는 역동적인 생태계로 볼 수 있었다.

Abstract ▼ AI-Helper

Thermal effluent of the hot spring has long been a field of interest in the relationship between temperature gradient and freshwater algae in geology, limnology and aquatic ecology throughout the world. On the other hand, many artificial hot springs have been developed in Korea, but the research on them has not been still active. This study was performed every month from December 2015 to September 2016, to elucidate the spatiotemporal effects of thermal wastewater effluent (TWE) on the ecosystem of benthic algal assemblage in four stations(BSU (upstream), HSW (hot spring wastewater outlet), BSD1~2 (downstream)) of the upstream reach of the Buso Stream, a tributary located in the Hantan River basin. During the survey, the influencing distance of temperature on TWE was <1.0 km, and it was the main source of N P nutrients at the same time. The effects of TWE were dominant at low temperature and dry season (December~March), but it was weak at high temperature and wet season (July~September), reflecting some seasonal characteristics. Under these circumstances, the attached algal communities were identified to 59 genera and 143 species. Of these, the major phylum included 21 genera 83 species of diatoms(58.0%), 9 genera 21 species of blue-green algae (14.7%) and 25 genera 32 species of green algae (22.4%), respectively. The spatiotemporal distribution of them was closely related to water temperature ($5^{\circ}C$ and $15^{\circ}C$) and current ($0.2m\;s^{-1}$ and $0.8m\;s^{-1}$). In the basic environment maintaining a high water temperature throughout the year round, the flora favoring high affinity to $PO_4$ in the water body or preferring stream habitat of abundant $NO_3-PO_4$ was dominant. As a result, when compared with the outcomes of previous algal ecology studies conducted in Korea, the Buso Stream was evaluated as a serious polluted state due to persistent excess nutrient supply and high thermal pollution throughout the year round by TWE. It can be regarded as a dynamic ecosystem in which homogeneity (Summer~Autumn) and heterogeneity (Winter~Spring) are repeated between upstream and downstream.

주제어

질의응답

핵심어	질문	논문에서 추출한 답변
	부소천이란 무엇인가?	부소천은 산지에서 발원하는 원류성 계류(溪流)로써 경기도 포천의 한탄강(댐) 상류에 유입되는 지천이다(MOLIT, 2012; Jeon et al., 2017).
	우리나라에서 정의하는 온천수 온도는 얼마인가?	온천수는 자연 용출 또는 인공 취수가 가능하여 온도 기준은 국가마다 다를 수 있다. 우리나라는 >25℃ 지하 온수를 온천으로 정의하고 있다(1981년 제정, 법률 제 3377호 참고). 그리고 땅 속 마그마(magma) 또는 화산(volcano) 활동 기원의 화산성과 그렇지 않는 비화산성 온천으로 구분하는데 백두산 지역을 제외하고 모두 후자에 포함된다(Kim, 2007a).
	산림구역에 인접한 계류의 특징은 무엇인가?	, 2017). 일반적으로 산림구역에 인접한 계류는 인위적 오염원 또는 교란이 거의 없는 청정지역에 속하며, 수질은 삼림과 지역적 특수성(예, 지질과 대기질)을 제외하고 빈영양의 자연수 수준을 보이게 된다(Kim, 2004a). 수온이 비교적 차고 연중 유수환경이 유지되어 1차 생산자 중 식물플랑크톤보다 부착조류 생태계가 우세하다(Shin and Cho, 1998; Kim, 2004a).

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저자의 다른 논문 :

표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

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