귀화식물 미국자리공(Phytolacca americana)의 적응환경요인

Adapted Environment Factors for a Neophyte Pokeweed (Phytolacca americana)

  • 발행 : 1996.06.01

초록

귀화식물인 미국자리공의 군락 구조와 무기환경요인을 추적하였다. 서식지 식생은 Pinus densiflora, persicaria perfoliata, Miscanthus sinensis, Smilax china, Rubus crataegifolius, Paederia scandens, Rosa multiflora, Commelina communis, Carex lancelolatl가 우점 하였으며 파괴된Pinus densiflora 아극상 감림군략에 침임하여 적응한 형태였다. 서식지 토양의 속성은 pH 4.6의 높은 산도, 높은 중금속과 유기물 함량이 특징적이었으며 이는 전형적인 황지식물군락의 환경요인이었다. 생장조절실 내에서 수행한 제한요인 처리에 의해 나타나는 유식물의 피해반응은 인공산성비에 의한 pH2.0과 500Lux의 광도에서 나타났으며 일시위조점은 pF2.6-2.7에서, 그리고 영구위조점은 pF2.8-2.9에서 각각 나타났다.

키워드

참고문헌

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