Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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Distribution Characteristics of Paddy Weeds in Northern Gyeonggi-do

경기북부 논 잡초 분포 특성

  • Oh, Young-Ju (Korea Biodiversity Reserarch Center Co., Ltd.) ;
  • Hong, Sun-Hee (Institute of Environment and Ecology, Korea University) ;
  • Lee, Wook-Jae (Korea Biodiversity Reserarch Center Co., Ltd.) ;
  • Kim, Chang-Seok (Department of Agro-Food Safety, National Academy of Science, RDA) ;
  • Lee, In-Yong (Department of Agro-Food Safety, National Academy of Science, RDA)
  • 오영주 ((주)한반도생물다양성연구소) ;
  • 홍선희 (고려대학교 환경생태연구소) ;
  • 이욱재 ((주)한반도생물다양성연구소) ;
  • 김창석 (국립농업과학원 농산물안전성부) ;
  • 이인용 (국립농업과학원 농산물안전성부)
  • Received : 2013.10.28
  • Accepted : 2013.12.19
  • Published : 2013.12.31
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Abstract

The climate change affects the growth and development of weeds as well as the outbreak of weeds. Especially, the occurrences of problematic paddy weeds due to climate change might cause the difficulties in weed control. This study therefore, investigated the current dominance and distribution of paddy weeds. As a result of the study on paddy weeds in northern Gyeonggi-do, there were total of 65 taxonomy groups including 23 family, 41 genus, 57 species, 7 subspecies and 1 variety. Among all the plants, 46 species were annual plants and 16 were perennial plants. Echinochloa crus-galli was the highest in importance analysis and the followings were in order of Ludwigia prostrate and Lemna paucicostata. The similarity of different paddy weeds in different regions observed through TWINSPAN analysis was distinguished by Fimbristylis miliacea, Rotala indica and Cyperus flaccidus. Regional differences shown in CCA analysis using weed species and soil environment revealed that Gimpo-si and Namyangju-si has difference soil and weeds, which are features that distinguished them from other regions. In northern Gyeonggi-do the result of paddy weed research showed the interregional difference not in dominant weeds but in distribution species.

기후변화는 기온, 강수량, 일사량 등을 변화시켜 잡초의 생육에 영향을 많이 미치며 잡초발생의 변화를 가져올 것이다. 논에 발생하는 문제잡초의 대부분이 C4 식물이며 이는 기후변화에 의해 문제잡초 발생이 많아지며 잡초방제에도 많은 어려움이 있을 것으로 예상되고 있다. 따라서 본 연구는 논 잡초발생 현황을 조사하여 문제잡초의 향후 변화양상에 대비하고 자 수행하였다. 경기북부 논 잡초 조사결과 23과 41속 57종 7변종 1품종으로 총 65분류군이 조사되었고 전체 식물중에 일년생 식물은 46종이고 다년생 식물을 16종으로 분석되었다. 이중 사초과가 23.1%로 가장 비율이 높았으며 벼과, 마디풀과, 국화과 순으로 나타났다. 중요치 분석에서는 돌피가 가장 높았으며 여뀌바늘, 좀개구리밥, 물달개비, 사마귀풀순으로 분석되었다. 지역별로는 가평군, 고양시, 파주시, 의정부시, 김포시, 양주시에서는 돌피의 중요치가 높았으며 남양주시는 물달개비, 연천군은 사마귀풀, 동두천시, 포천시는 좀개구리밥의 중요치가 높았다. TWINSPAN 분석을 통한 시군의 잡초종의 유사성은 바람하늘지기, 마디꽃, 병아리방동사니에 의해 지역이 구분되었다. CCA 분석에서 잡초종과 토양환경을 이용한 지역간의 차이는 김포시가 높은 토양 EC와 파대가리, 애기부들에 의해 구분되고 남양주시가 낮은 토양 온도조건과 미꾸리낚시, 통발에 의해 다른 지역과 구별되었다.

Keywords

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