This research was made to investigate the effects of burned, which is made in the early spring every year at Saebyeol-Oreum from 2003 to 2009, on changes in vegetation on the grassland. The results of analyzing the characteristics of the lay of the land showed that the proportion of the surface land that had the angle of azimuth and the angle of slope in the range of southeast 135°~180° accounting for 73.89% and 21°~30° accounting 58.33% of the entire surface land, respectively, was found to be highest. The results of the analysis showed that the relative importance value was found to be lowered from 27.07 in 2003 to 19.47 in 2009, and this can be attributable to the relative importance value of Artemisia japonica having been heightened from 7.07 in 2003 to 16.23 in 2009. The reason that the relative importance value of Artemisia japonica was found to be high is thought to be that vegetation on the surface land was removed by burned in the early spring and, due to this, the dry surface of soil and the high slope accelerated the soil erosion and could not provide proper environment of the growth and development for Imperata cylindrical and Miscanthus sinensis, so Imperata cylindrical and Miscanthus sinensis were excluded and Artemisia japonica whose importance value had been highest have flourished. Researches to maintain the current vegetation on the burned location of Saebyeol-Oreum and to adjust physical characteristics of soil to restore vegetation and the proper time and cycle of burned should be conducted.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 조사지역
  2.2. 조사 및 분석 방법
 3. 결 과
  3.1. 새별오름 화입지 지형 특성
  3.2. 식생 구조 변화
  3.3. 종다양성 지수 변화
 4. 고 찰
 5. 결 론
 참 고 문 헌

• 송국만(제주대학교 생물학과) | Kuk-Man Song (Department of Biology, Jeju National University)
• 강성현(제주대학교 생물학과) | Seong-Hyun Kang (Department of Biology, Jeju National University)
• 최선아(제주대학교 생물학과) | Sun-Ah Choi (Department of Biology, Jeju National University)
• 김문홍(제주대학교 생물학과) | Moon-Hong Kim (Department of Biology, Jeju National University) Corresponding Author