생태와 환경 Vol. 52 No. 2 (p.161-170)

|Original article|
울산광역시 침입외래식물의 분포 현황과 특성에 관한 연구

A Study on the Distribution Characteristics of Invasive Alien Plants in Ulsan City, South Korea.
키워드 :
flora,invasive alien plants,Ulsan city

목차

Abstract
서 론
재료 및 방 법
  1. 연구 지역
  2. 연구 방법
결과 및 고 찰
  1. 울산광역시의 침입외래식물 현황
  2. 생활형 구분
  3. 행정구역별 비교
  4. 원산지별 구분
  5. 이입시기 및 도입 구분
  6. 확산등급
  7. 침입외래식물의 서식지별 분포 특성
REFERENCES

초록

Invasive alien plants were identified and recorded in Ulsan city based on field surveys and related literatures. These plants consisted of 147 taxa in total, belonging to 30 families, 93 genera, 144 species, 2 subspecies and 1 variant. The family of Asteraceae was predominant with 42 taxa, followed by Gramineae with 27 taxa and Leguminosae with 15 taxa. According to the result of life-form based distribution analysis revealed that 62 taxa (42.2%) were annual plants, 48 taxa (33.6%) were perennial plants, 34 taxa (23.1%) were biennial plants, and 3 taxa (2%) were woody perennials. Compare to other administrative districts in Korea, prevalence of invasive alien plants in a certain city of Ulsan showed the seventh highest species number followed after Jeju, Gyeonggi, Jeonnam, Incheon, Seoul and Gangwon. On the basis of the results from the country origin analysis, two dominating taxa were introduced from Europe and America, 55 taxa and 51 taxa respectively. The spreading grade of alien plants was elucidated in order of 1 grade (PS) 67 grade (21.1%)>2 grade (MS) 31 taxa (21.1%) >5 grade (WS) 18 taxa (11.6%)>3 grade (CS) 17 taxa (11.6%)>4 grade (SS) 14 taxa (9.5%). Ulsan city is one of a pivotal conduit for the introduction of invasive alien plants. Thereby, reliable management plans are required to monitor these species.