서낙동강 본류 및 낙동강 둔치 습지의 수생식물 생물량 분포
(주)코리아스칼라
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- 2016.04.02
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- 2014.03
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서지정보
ㆍ발행기관 : 한국하천호수학회
ㆍ수록지정보 : 생태와 환경 / 47권 / 1호
ㆍ저자명 : 김구연, 김지윤
영어 초록
Standing crop distribution of aquatic plants in the West Nakdong River and riparian wetlands inthe Nakdong River were surveyed in May, July and September, 2010. Total 25 aquatic macrophyte species(submerged: 9, leaf-floating: 3, free-floating: 5, emergent: 8) were observed during the survey periods.Distribution area of aquatic plants and proportion of submerged communities were highest in Garakchi-deung(212,032m2, 72.7%). The distribution area of aquatic plants was highest in Phragmites australiscommunity(421,584m2), followed by Hydrilla verticillata-Vallisneria natanscommunity(181,511m2), Potamogetonwrightii-Vallisneria natanscommunity(61,604m2), and Hydrocharis dubiacommunity(49,709m2). Garakchi-deung(212,032kg) also had the highest aquatic plant production, followed by Suanchi-deung(15,546kg),Daedong(5,813kg), Dunchi-do(3,963kg), Maekdo(1,463kg), Yeommak(571kg), Jungsa-do(530kg), andShinan(300kg). Average standing crop of the study area were 147.8±20.8g DW∙m-2in 1988, 96.1±20.0gDW∙m-2in 2000, and 172.6±76.1g DW∙m-2in 2010. For a sustainable management of river habitat andfood source, aquatic plant should concurrently be surveyed with river environmental variables(i.e. sediment,nutrient, flow).
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