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The Change Analysis of Plant Diversity in Protected Horticulture of Agricultural Ecosystems

시설원예단지 조성이 농업생태계의 식생다양성에 미치는 영향 분석

  • 손진관 (농촌진흥청 국립농업과학원) ;
  • 공민재 (농촌진흥청 국립농업과학원) ;
  • 강동현 (농촌진흥청 국립농업과학원) ;
  • 박민정 (농촌진흥청 국립농업과학원) ;
  • 윤성욱 (농촌진흥청 국립농업과학원) ;
  • 이시영 (농촌진흥청 국립농업과학원)
  • Received : 2016.04.09
  • Accepted : 2016.05.19
  • Published : 2016.05.31

Abstract

Although the ecosystem extends numerous functions for the benefit of humankind, construction of horticultural facilities can potentially lead to the degeneration of some of these functions owing to the expansion of impervious regions and loss of habitats. Thus, this study aimed to examine the effect of construction of horticultural facilities on plant biodiversity. Analysis of the vegetation distribution characteristics showed that horticultural facilities had significantly lower plant diversity than did rice paddies. Hence, the proposed approach involved low-impact development, arrangement of habitat space, plant preservation, restricted use of chemical fertilizer, habitat creation, and reduced preservation cost. Lifestyle analysis suggested the importance of developing favorable environments for the growth of annual plants and aquatic plants. In all, 20 species of naturalized plants belonging to 10 families were identified. Furthermore, the proportion of these naturalized plants was higher in glass greenhouses and multi-span greenhouses, suggesting the advantages of employing natural soil mulching while avoiding concrete mulching. Statistical analysis was performed to validate the results, which suggested that impervious regions be converted to natural soils. Collectively, the findings of this study are expected to be used for establishing policies for the construction of eco-friendly and ecological horticultural facilities; this may aid the maintenance of sustainable agricultural landscapes and large-scale development of the reclaimed lands.

인간은 생태계로부터 다양한 공익적 기능을 제공받고 있지만 시설원예단지 조성은 불투수면적 확장과 생물서식처 손실로 인해 기능저하의 원인이 될 수 있다. 시설원예단지 조성이 식물 종 다양성에 미치는 영향을 파악하였다. 식생분포 특성 분석결과 논에 비해 시설원예단지의 식물다양성이 상당히 낮다는 것을 알 수 있었다. 따라서 저 영향개발, 서식공간 배치, 식물 보전, 화학비료 사용제한, 서식처 조성, 보전비용 등을 제안하였다. 생활형 분석을 통해 일년생식물과 수생식물의 생육기반 환경 조성을 제시하였다. 귀화식물은 총 10과 20종류가 확인되었으며, 귀화율은 유리온실과 연동형 온실이 매우 높게 분석되어 콘크리트 피복을 지양하고 자연토양 피복을 유도 할 것을 제안하였다. 연구결과는 통계분석을 통해 확인하고 불투수면적을 자연형 토양으로 전환을 제안하였다. 본 연구결과는 지속가능한 농업경관 유지와 대규모 간척지 개발 사업에 있어 친환경, 생태적 시설원예단지 조성을 위한 정책자료에 활용되길 기대한다.

Keywords

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