Korean Journal of Environmental Biology Vol. 40 No. 2 (p.148-156)

농업 환경보전 프로그램 대상마을의 논과 둠벙 생태계의 저서성대형무척추동물 분포 특성

Distribution characteristics of macroinvertebrates in an agricultural paddy field and irrigation pond ecosystems in a farmer’s practice manual on the village of the Agricultural Environment Conservation Program
키워드 :
environment-friendly agriculture,rarefaction curve,habitat,spawning ground,organic agriculture

목차

Abstract
서 론
재료 및 방법
   1. 조사기간 및 조사지역
   2. 조사방법 및 내용
결과 및 고찰
   1. 수환경특성
   2. 저서성대형무척추동물 군집조성 특성
   3. 저서성대형무척추동물의 기능군 분석
   4. 생태학적 군집분석
   5. 유사도 분석
적 요
사 사
REFERENCES

초록

Ecological occupation in irrigation ponds is a well-acknowledged fact that is essential for biodiversity conservation in agricultural ecosystems. However, there are few studies on the ecological functions and relationship between a paddy field and irrigation using macroinvertebrates in an environmentally friendly paddy field. The objective of this study is to identify the community and distribution characteristics of macroinvertebrates in an agricultural paddy field and irrigation pond ecosystems, and to provide basic data on the ecological function of an environmentally friendly paddy field. Macroinvertebrate sampling was conducted from May to September in an agricultural paddy field and irrigation pond in an environment-friendly paddy field in Boryeong city. We conducted a study to identify the distribution characteristics using macroinvertebrate species analysis, such as Functional Feeding Groups (FFGs), Habitat Oriented Groups (HOGs), rarefaction curve, and a two-way dendrogram. A total of 37 species of macroinvertebrates in 28 families, 13 orders were collected study during the period of the investigation. Dominant taxa of macroinvertebrates included Coleoptera, Hemiptera, and Odonata. In terms of FFGs, predators and gathering collectors accounted for approximately 70%, in relation to HOGs, and climbers and swimmers occupied more than 50% from both the paddy field and irrigation pond. With respect to the rarefaction curve, the irrigation pond (July) was high as E (S, 141)=18 species, while the paddy field (May) was comparatively low as E (S, 141)=9 species. In conclusion, our results revealed that macroinvertebrates, such as Notonecta triguttata, Peltodytes intermedius, Appasus major, Laccotrephes japonensis, Appasus japonicus, Sigara substriata, Enochrus simulans, and Sternolophus rufipes, were used as a habitat and spawning ground in both paddy field and irrigation pond. The irrigation pond appears to be a very important spawning ground for macroinvertebrates.