ISSN : 2287-8327
In lotic wetlands, runner reed (Phragmites japonicus) plays a role as a pioneer, which helps other plant species to settle by making dense roots trapping floating-sediments. In lentic wetlands, on the other hand, P. japonicus could play a role as an invader threatening biodiversity by forming tall and dense stands. To conserve an abandoned paddy terrace in mountainous areas, a habitat of an endangered dragonfly species (Nannophya pygmaea), from the monotypicoccupation by P. japonicus, we applied three kinds of treatment: (1) hand-clipping in 2009, (2) mechanical excavating in 2012, and (3) planting of alternative vegetational unit in 2012. We have monitored vegetation changes in the wetland in 2008~2012 and 2017. Vegetation cover of P. japonicus sharply decreased from 43% in 2011 to 16% in 2012 by the mechanical excavation. After 5 years from applying the treatment, Schoenoplectiella mucronata that was utilized in the planting became the predominant species instead of P. japonicus and the number of wetland plant species increased from 16 to 25 with the shift
Asaeda T, Baniya MB, Rashid MH. Effect of floods on the growth of Phragmites japonica on the sediment bar of regulated rivers: a modelling approach. Int J River Basin Manag. 2011;9:211–20.
Asaeda T, Siong K, Kawashima T, Sakamoto K. Growth of Phragmites japonica on a sandbar of regulated river: morphological adaptation of the plant to low water and nutrient availability in the substrate. River Res Appl. 2009;25:874–91.
Byun C, Kwon GJ, Lee D, Wojdak JM, Kim JG. Ecological assessment of plant succession and water quality in abandoned rice fields. J Ecol Field Biol. 2008;31:213–23.
Cho Y-C, Lee S-M, Lee C-S. Floristic composition and species richness of soil seed bank in three abandoned rice paddies along a seral gradient in Gwangneung Forest Biosphere Reserve, South Korea. J Ecol Environ. 2018;42:12.
Choe GC, Kim NC. Study on the revegetation methods of Phragmites japonica, Miscanthus sacchariflorus, Themeda triandra and Pennisetum alopecuroides for the rehabilitation of close-to-nature river. J Korean Soc Environ Restor Technnol. 1999;2:70–7.
Chu H, Cho WK, Jo Y, Kim W-I, Rim Y, Kim J-Y. Identification of natural hybrids in Korean Phragmites using haplotype and genotype analyses. Plant Syst Evol. 2011;293:247–53.
Chun SH, Hyun JY, Choi JK. A study on the distribution patterns of Salix gracilistyla and Phragmites japonica communities according to microlandforms and substrates of the stream corridor. J Korean Institute Landscape Architect. 1999;27:58–68.
Hong MG, Kim JG. Role and effects of winter buds and rhizome morphology on the survival and growth of common reed (Phragmites australis). Paddy Water Environ. 2014;12(Suppl 1):S203–9.
Hong MG, Nam JM, Kim JG. Occupational strategy of runner reed (Phragmites japonica Steud.): change of growth patterns with developmental aging. Aquat Bot. 2012;97:30–4.
Hong MG, Son CY, Kim JG. Effects of interspecific competition on the growth and competitiveness of five emergent macrophytes in a constructed lentic wetland. Paddy Water Environ. 2014;12(Suppl 1):S193–202.
Kim DG, Yum JW, Yoon TJ, Bae YJ. Life history of an endangered dragonfly, Nannophya pygmaea Rambur, in Korea (Anisoptera: Libellulidae). Odonatologica. 2010;39:39–46.
Kim Y-H, Kim J-H. Genetic variations and relationships of Phragmites japonica and P. communis according to water environment change. Korean J Plant Resour. 2009;22:152–8.
Lenssen JPM, Kleunen MV, Fischer M, Kroon HD. Local adaptation of the clonal plant Ranunculus reptans to flooding along a small-scale gradient. J Ecol. 2004;92:696–706.
Park HJ, Nam BE, Hong MG, Kim JG. Slope and soil nutrients can explain the distribution of Phragmites australis and P. japonica in riparian wetlands. River Res Appl. 2018. https://doi.org/10.1002/rra.3350.
Park J, Hong MG, Kim JG. Relationship between early development of plant community and environmental condition in abandoned paddy terraces at mountainous valleys in Korea. J Ecol Environ. 2013;36:131–40.
Tanaka TST, Irbis C, Kumagai H, Wang P, Li K, Inamura T. Effect of Phragmites japonicus harvest frequency and timing on dry matter yield and nutritive value. J Environ Manag. 2017;187:436–43.
Tsubaki Y, Michael TSJ, Tomohiro O. Recopulation and post-copulatory mate guarding increase immediate female reproductive output in the dragonfly Nannophya pygmaea Rambur. Behav Ecol Sociobiol. 1994;35:219–25.
Yang C, Zhang X, Zhou C, Seago JL Jr. Root and stem anatomy and histochemistry of four grasses from the Jianghan Floodplain along the Yangtze River, China. Flora. 2011;206:653–61.
Yang YY, Kim JG. The optimal balance between sexual and asexual reproduction in variable environments: a systematic review. J Ecol Environ. 2016;40:12.
Yang YY, Kim JG. Correction to: the optimal balance between sexual and asexual reproduction in variable environments: a systematic review. J Ecol Environ. 2018;42:6.
Yoon J, Kim H, Nam JM, Kim JG. Optimal environmental range for Juncus effusus, an important plant species in an endangered insect species (Nannopya pygmaea) habitat in Korea. J Ecol Field Biol. 2011;34:223–35.
Yoon J, Nam JM, Kim H, Bae YJ, Kim JG. Nannophya pygmaea (Odonata:Libellulidae), an endangered dragonfly in Korea, prefers abandoned paddy fields in the early seral stage. Environ Entomol. 2010;39:278–85.