대관령 가축시험장 지장에 있어서의 몇개의 방목지에 대한 생태학적 연구 = An Ecological Study of Several Grazing Grasslands in the Branch Station of the Taiguanryong Livestock Experiment Center.

다국어 초록 (Multilingual Abstract)

PARK, Bong Kyu (Dept. of Biology, Coll. of Education. Ewha Womana Univ.) An ecological study of several grazing grasslands in the branch station of the Taiguan-ryong livestock experiment center. Kor. Jour. Bot. V(3): 1-4. 1962. A district (Sae-Bong) and 13 district (Sae-Jang Dong) grassland could be dlvided into four type of Community: Miscanthus-Community, Glyceria-Community, Festuca-Community, and Plantago-Community. Chose 17 or 20 stands from each district A and B and calculated F. I. with the Curtis method, finally vegetational continuum could be recognized while discontinuous boundary line of species distribution could not be recognized. As a rule the distributional curve of species was binominal or bell shaped. It had a distribution pattern peculiar to itself. As to the relationship of cattles density and vegetation, I found that the tendency of F. I. moving from small to large paralleled that of disturbance-pressure from weak to strong. Found that the more the steepness of environmental facters be controlled by a rule from large to small, the more F. I. might he controlled by a rule from small to large and that pH, soil-moisture-content, loss on ignition was in relation with the steepness.