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우분 분해에 대한 지렁이와 소똥구리의 상호작용

Interaction between Earthworm and Dung Beetles on Cattle Dung Decomposition

  • 방혜선 (국립농업과학원 기후변화생태과) ;
  • 나영은 (국립농업과학원 기후변화생태과) ;
  • 정명표 (국립농업과학원 기후변화생태과) ;
  • 김명현 (국립농업과학원 기후변화생태과) ;
  • 한민수 (국립농업과학원 기후변화생태과) ;
  • 강기경 (국립농업과학원 기후변화생태과) ;
  • 이덕배 (국립농업과학원 기후변화생태과)
  • Bang, Hea-Son (Agro-Ecosystem, Environmental Ecology Division, National Academy of Agricultural Science, RDA) ;
  • Na, Young-Eun (Agro-Ecosystem, Environmental Ecology Division, National Academy of Agricultural Science, RDA) ;
  • Jung, Myung-Pyo (Agro-Ecosystem, Environmental Ecology Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Myung-Hyun (Agro-Ecosystem, Environmental Ecology Division, National Academy of Agricultural Science, RDA) ;
  • Han, Min-Su (Agro-Ecosystem, Environmental Ecology Division, National Academy of Agricultural Science, RDA) ;
  • Kang, Kee-Kyung (Agro-Ecosystem, Environmental Ecology Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Deog-Bae (Agro-Ecosystem, Environmental Ecology Division, National Academy of Agricultural Science, RDA)
  • 발행 : 2009.09.30

초록

우분의 분해에 있어 소똥구리와 지렁이를 함께 처리한 구에서 단독으로 소똥구리와 지렁이를 처리한 것 보다 분해율이 높았고, 지렁이와 소똥구리가 우분 분해 활동을 한 다음에 식물체를 파종했을 때 식물체 생장은 비료를 처리한 것과 동일한 효과가 인정되었다. 우분 함수율 78%까지는 소똥구리에 의해 분해 활동이 일어나며, 30%까지는 지렁이에 의해, 30% 이하에서는 두 동물군 모두 분해 활동을 하지 않았다. 소똥구리와 지렁이에 의해 운반된 우분은 초기 우분의 약 72%이며, 이중 10.2%는 소똥구리의 brood ball 형성에 이용되었다. 지렁이의 활동이 소똥구리의 brood ball 형성에 저해요인이 되지 않았고, 소똥구리의 활동 또한 지렁이의 생육에 영향을 미치지 않아 지렁이와 소똥구리는 우분에서 공간적 분포를 같이 하면서 먹이 경쟁을 하기 보다는 상호보완적인 작용을 하는 것으로 밝혀졌다.

키워드

Decomposition;interaction;dung beetle;earthworm

참고문헌

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