초록
국내 분포하는 환삼덩굴군락의 식생구조에 대해 식물사회학적 연구를 수행하였다. 총67개 조사구에 대한 식생자료의 분석은 $Z\ddot{u}rich$-Montpellier 학파의 방법을 이용하였다. 환삼덩굴군락의 상층 식생은 쑥-환삼덩굴군락, 흰명아주군락, 돌피-강아지풀군락, 전형하위군락으로 구분되었다. 하층 식생은 쇠별꽃-갈퀴덩굴군락, 쇠뜨기군락, 고마리군락, 바랭이-돌피군락, 전형하위군락으로 구분되었다. 식생과 서식환경과의 CCA분석 결과 상층의 돌피-강아지풀군락은 토양 경도와 상대광도 높은 지역에 서식하고 흰명아주군락은 토양 pH가 높은 지역에 분포한다. 하층의 쇠별꽃-갈퀴덩굴군락은 토양 pH가 높은 지역에 발생하고 고마리군락과 바랭이-돌피군락은 토양 수분이 높은 지역에 형성되었다.
Phytosociological study was carried out to investigate the structural characteristics of Humulus japonicus community in the Middle area of Korea. The vegetation data of total 67 $relev\acute{e}s$ were analyzed by the $Z\ddot{u}rich$-Montpellier school's method. Upper layer plant communities of Humulus japonicus were classified into four community groups : Humulus japonicus-Artemisia princeps community, Chenopodium album community, Setaria viridis-Echinochloa crus-galli community and Typical community. Lower layer plant communities were classified into five community groups : Galium spurium-Stellaria aquatica community, Equisetum arvense community, Persicaria theunbergii community, Echinochloa crus-galli-Digitaria ciliaris community and Typical community. According to the results of canonical correspondence analysis by vegetation and environmental factor, Setaria viridis-Echinochloa crus-galli community of upper layer was distributed throughout the soil with high relative light and soil hardness. Chenopodium album community appeared in the soil with high pH. Galium spurium-Stellaria aquatica community of lower layer was formed in the high soil pH. Persicaria theunbergii community and Echinochloa crus-galli-Digitaria ciliaris community were distributed in the soil with high moisture.