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관행 논과 유기 재배 논의 토양 종자은행과 토양 특성 비교

Comparison of Soil seed bank and Soil characteristics in Conventional Paddy field and Organic Paddy field

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주제분류기타자연과학

초록

논은 다양한 생태계 서비스를 제공할 뿐만 아니라 생물다양성 보전에 중요한 서식지이며, 최근 생태학적 가치와 중요성이 점점 강조되고 있다. 따라서 본 연구는 영농 방식이 서로 다른 관행 논(Conventional Paddy field, CP)과 유기재배 논(Organic Paddy field, OP)을 대상으로 토양 종자은행의 특성을 파악하고 토양 환경 요인과의 상관관계를 분석하였다. 연구결과 관행 논의 식생은 단순하여 종자은행의 식물 다양성이 낮은 반면에, 유기 논의 식생은 상대적으로 다양하여 종자은행의 식물 다양성이 높게 나타났다. 또한 토양 환경 특성도 유기 논 (K, Ca, Mg, Na, Fe, Mn, B↓) 과 관행 논(K, Ca, Mg, Na, Fe, Mn, B↑)의 명확한 차이를 보였다. 이러한 결과는 벼 재배 방식에 대한 영농활동의 차이가 식생과 토양 종자은행의 구조와 다양성에 영향을 주었고 또한 토양 환경 요인에도 직간접적으로 영향을 준 것으로 판단된다. 본 연구결과는 농업생태계 생물다양성 보전과 생태계 복원 그리고 생태적 가치를 평가하기위한 기초자료로 활용될 수 있다.

Abstract

Paddy fields not only provide a variety of ecosystem services but also serve as crucial habitats for biodiversity conservation. Recently, their ecological value and significance have been increasingly emphasized. Therefore, this study aimed to investigate the characteristics of soil seed banks and analyze their correlation with soil environmental factors in Conventional Paddy field (CP) and Organic Paddy field (OP) with different farming practices. Our results revealed that the vegetation in CP was simple, resulting in low plant diversity in the soil seed banks. On the other hand, the vegetation in OP was relatively diverse, leading to higher plant diversity in the soil seed banks. Additionally, distinct differences in soil environmental characteristics were observed between OP (K, Ca, Mg, Na, Fe, Mn, B↓) and CP (K, Ca, Mg, Na, Fe, Mn, B↑). These results suggest that variations in agricultural practices for rice cultivation have influenced the structure and diversity of vegetation and soil seed banks. Furthermore, these agricultural practices have had both direct and indirect effects on soil environmental factors. Our findings can serve as fundamental data for evaluating biodiversity conservation in agricultural ecosystems, ecosystem restoration, and ecological value assessment.

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