Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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The Effect Analysis of Vegetation Diversity on Rice-Fish Mixed Farming System in Paddy Wetland

벼-담수어 복합생태농업이 논습지 식생다양성에 미치는 영향 분석

  • Kong, Minjae (Dept. of Agricultural Environment, National Institute of Agricultural Sciences, RDA) ;
  • Kim, Changhyun (Department of Landscape Architecture, Dankook University) ;
  • Lee, Sangmin (Dept. of Agricultural Environment, National Institute of Agricultural Sciences, RDA) ;
  • Park, Kwanglai (Dept. of Agricultural Environment, National Institute of Agricultural Sciences, RDA) ;
  • An, Nanhee (Dept. of Agricultural Environment, National Institute of Agricultural Sciences, RDA) ;
  • Cho, Junglai (Dept. of Agricultural Environment, National Institute of Agricultural Sciences, RDA) ;
  • Kim, Bongrae (Company limited by shares) ;
  • Lim, Jongahk (Jeollanam-do Ocean & Fisheries Science Institute) ;
  • Lee, Changwon (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Kim, Hyeongsu (Inland Aquaculture Research Center, National Institute of Fisheries Science) ;
  • Nam, Hongsik (Dept. of Agricultural Environment, National Institute of Agricultural Sciences, RDA) ;
  • Son, Jinkwan (Dept. of Agricultural Engineering, National Institute of Agricultural Sciences, RDA)
  • 공민재 (농촌진흥청 국립농업과학원 농업환경부) ;
  • 김창현 (단국대학교 녹지조경학과) ;
  • 이상민 (농촌진흥청 국립농업과학원 농업환경부) ;
  • 박광래 (농촌진흥청 국립농업과학원 농업환경부) ;
  • 안난희 (농촌진흥청 국립농업과학원 농업환경부) ;
  • 조정래 (농촌진흥청 국립농업과학원 농업환경부) ;
  • 김봉래 (진솔원) ;
  • 임종악 (전라남도 해양수산과학원) ;
  • 이창원 (전라북도 수산기술연구소) ;
  • 김형수 (국립수산과학원 중앙내수면연구소 내수면양식연구센터) ;
  • 남홍식 (농촌진흥청 국립농업과학원 농업환경부) ;
  • 손진관 (농촌진흥청 국립농업과학원 농업공학부)
  • Received : 2018.10.26
  • Accepted : 2018.11.13
  • Published : 2018.11.30
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Abstract

Organic farming practices including loach based ecosystem-farming have been demonstrated to be effective in conjunction with rice farming to increase yield and quality. This new form of farming combines agriculture and fishery and is quickly developing into a new industry. The current study investigated the effect of rice-fish mixed farming system on the vegetation-diversity function. Vegetation within the four study sites was surveyed and analyzed based on plant taxonomy. The vegetation survey demonstrated that 127 taxa of 38 families, 100 genera, 107 species, and 20 varieties occurred within the study sites. A total of 15 plant species taxa occurred in the rice-fish mixed paddy fields with a fish habitat and did not occur in the conventional paddy field lacking fish habitat. This difference is thought to arise from differences in moisture requirements for vegetation. Life form analysis demonstrated differences in hemicryptophytes, therophytes, and hydrophytes according to fish habitat. The naturalized plants identified were also determined to be species widely distributed throughout Korea. Frequency analysis demonstrated that the rice-fish mixed paddy fields with a fish habitat had a high ratio of both obligate and facultative wetland plants relative to the conventional paddy field. Based on the study results, it is likely that vegetation-diversity will increase with environment diversity. However, no statistical significance was observed according to paddy types. Future research should aim to identify additional environmental factors, including the existence of fish habitat, habitat area, depth of fish habitat, hydrological parameters, water quality, and paddy soil environment, to enhance vegetation-diversity and biocultural diversity.

최근 유기농법이 확산되며 벼농사와 더불어 맛과 영양소 측면에서 월등하게 높은 가치를 평가받는 미꾸리를 활용한 생태농법이 농업과 어업이 결합된 차세대 산업으로 급부상하고 있는 추세이다. 본 연구는 복합생태농업이 식생다양성 기능에 미치는 영향을 알아보기 위해 수행하였다. 연구방법은 식생조사를 통한 식물학적 분류를 통해 분석하였다. 전체 연구대상지에서 식생조사 결과 38과 100속 107종 20변종 127종류가 출현하였다. 둠벙이 있는 복합생태논에서는 출현하였으나 둠벙이 없는 대조논에서 출현하지 않은 종은 총 15종류(Taxa)의 차이로 확인되어 둠벙의 유무에 따라 식생의 수분요구도 차이로 나타난 결과로 판단된다. 또한 생활형 분석결과 둠벙의 유무에 따라 접지, 일년생, 수생식물의 차이도 확인되었다. 출현한 귀화식물도 전국적으로 널리 분포하는 종으로 분석되었다. 습지출현빈도 분석결과 둠벙이 있는 복합생태논이 대조논에 비해 절대습지식물과 임의습지식물의 비율이 높게 나타났다. 본 연구결과 생육환경이 다양할수록 식생다양성은 높아질 것으로 판단된다. 하지만 유형별 통계적 유의성은 확인되지 않아 식생다양성 및 생물다양성 증진을 위해서 향후 둠벙의 유무, 면적, 둠벙의 깊이, 수문, 수질환경, 토양환경 등 다양한 환경적 요인 찾는 추가적인 연구가 필요하다고 판단된다.

Keywords

HKSJBV_2018_v20n4_398_f0001.png 이미지

Fig. 1. The cross section of two rice paddy fields.

Table 1. Analysis of the vegetation classification methods.

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Table 2. The number of taxa surveyed at four investigation sites

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Table 3. Life form analysis at organic and conventional farming sites.

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Table 4. Naturalized plants at organic and conventional farming site.*.

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Table 5. Comparison of naturalized ratio and urbanization index of different organic farming sites and conventional farming site.

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Table 6. Plant frequencies at organic farming and conventional farming sites.

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Table 7. Plant habitats at organic and conventional farming sites.

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Table 8. Statistical analysis of study sites (ANOVA).

HKSJBV_2018_v20n4_398_t0008.png 이미지

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