• The Korean Journal of Ecology
• /
• 제24권5호
• /
• pp.267-271
• /
• 2001

동북아시아 냉온대림역의 해안사구에 발달하고 있는 해안사구임연식생인 해당화군목의 군락체계에 대한 식생학적 연구가 수행되었다. 현재 해당화군목은 동북아시아 임연식생의 최상위 계급인 찔레꽃군강에 귀속되어 있으나, 군락체계적으로 애매한 문제점을 내포하고 있는 실정이다. 본 연구는 찔레꽃군강과 해당화 군목의 식물사회학적 군락체계 및 한국과 일본의 해안사구에서 조사된 해당화군목 197개의 균질한 releve를 이용하여 수행되었다. 해당화군목의 군락체계 분석에는 상재도, 빈도 및 순기여도가 이용되었다. 해당화군목은 그 상급단위로 결정되어 있는 찔레꽃군강과는 명확히 구분되어 해당화군목의 찔레꽃군강으로의 예속은 부적절하였다 따라서, 해당화군목의 식생학적 군락체계는 재고되어야할 것으로 생각되며, 그것은 난온대형 해안사구관목식생을 특징짓는 순비기나무군강에 대응되는 군락유형으로 판단된다.

• The Korean Journal of Ecology
• /
• 제18권3호
• /
• pp.307-321
• /
• 1995

Division of ecoregions having respective functions was attempted through quantitative and qualitative analysis on vegetation diversity, and heterogeneity and on soil environment of the study sites. Field research was carried out in a square of 81 ㎢ around Andongpo (126°38'E, 37°30'N), Kimpo-gun, Kyonggi provice. Conventional methods applied are as follows: classical syntaxonomy by the Zurich-Montpellier School, interpolation method to determine the degree of diversity, heterogeneity and distribution pattern of vegetation, and correlation analysis between soil properties and plant communities. 41 plant communities were identified and composed of 6 forests, 4 mantle and 31 herb communities including 6 saltmarsh plant communities. In a mesh, number of plant communities was highly correlated to the number of species. The highest number of plant community and species was 25 communities·km-2·mesh-1 and 381 species· km-2·mesh-1 ,and the highest value of vegetation heterogeneity was 28.1 species· community-1·mesh-1. Their lowest numbers were 4 communities·km-2·mesh-1. and 28 species·km-2·mesh-1. and 7 species·community-1·mesh-1, respectively. Contour map on vegetation diversity and heterogeneity enabled us to establish two regions; coastal and inland vegetation. Isoline 〔150〕,〔10〕and〔10〕and〔15〕on the species diversity, the community diversity and the vegetation heterogeneity, respectively, were regarded as ecolines in the study area. Cl- content was recognized as the most important factor from correlation analysis between soil properties. Ordination of sites indicated that the study area be divided into two edaphic types: inland and coastal habitats. It was considered that the extent of desalinization in soil played a major role in determining the species composition in the reclamed area. By matching edaphic division of habitats with division of vegetation structures, designation of ecoregion was endorsed. The approach of current study was suggested as an effective tool to implement an assessment of the vegetation dynamics by the disparity of natural environment and anthropogenic interferences.