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낙동강 하류에서 수서무척추동물에 의한 정수식물의 낙엽분해
김구연(Gu Yeon Kim),주기재(Gea Jae Joo),김현우(Hyun Woo Kim),신건성(Geon Seong Shin),윤해순(Hae Soon Yoon) 한국하천호수학회 2002 생태와 환경 Vol.35 No.3
Leaf litter breakdown rates of the Phragmites australis, Ziznia latifolia and Typha angustifolia were determined at the lower Nakdong River from Nov. 1998 to Sept. 1999. The relationship between leaf litter breakdown of three and abundance of aquatic invertebrates was investigated. Aquatic invertebrates collected in the litterbags were 11 family, 11 species(mean density: 222 ind./㎡, n=792), and Chironomidae was dominant. Mean density of Chironomidae in the litterbags were different according to the aquatic plant species: Z. latifolia(180 ind./㎡, n=264) T. angustifolia(187 ind./㎡, n=264) P. australis(95 ind./㎡, n=264). The breakdown of Z. latifolia was the shortest, and that of T. angustifolia was shorter than P. australis. Overall, the breakdown rate at floating layer was faster than that of submerged layer in all of three species and differences of the breakdown rate between open bags and closed bags were not found.