변산반도국립공원 내 임도 식물상과 귀화식물 현황

The Flora and Alien Species of Forest Road, Byeonsanbando National Park

본 조사는 2013년 봄(4~5월)과 여름(7월) 2회에 걸쳐 변산반도국립공원 내 개설된 10개 임도주변의 식물상과 생태계교란정도를 파악하여 효율적인 임도의 관리방안을 마련하기 위해 실시하였다. 조사한 10개 임도에서 확인된 식물상은 41목 97과 353종 68변종 13품종 3아종으로 총 437분류군(taxa)이 조사되었다. 이중 환경부지정 멸종위기생물 II급인 노랑붓꽃(Iris koreana Nakai) 1종이 조사되었으며, 귀화식물은 44종이며 그 중 환경부지정 생태계교란생물은 돼지풀, 도깨비가지, 애기수영, 서양금혼초 등 4종이 확인되었다. 전체에 대한 도시화지수(UI: Urbanization Index)는 14.24%이고, 귀화율(NI, Naturalization Index)은 10.07%로 나타났으며 개별 임도의 경우 도시화지수가 가장 낮은 곳이 2.27%이고 가장 높은 곳은 7.77%로 나타났다. 귀화율의 경우 4.46%에서 11.86%을 나타냈다. 도시화지수와 귀화율에 대한 개별 임도 간 차이는 인위적 간섭정도, 즉, 임도의 주기적 관리와 차량 출입의 빈도에 따라 차이가 나는 것으로 판단된다.

This study was carried out to prepare the effective forest road management plan by examining the flora and ecosystem disturbance status around 10 forest roads opened in Byeonsan Peninsula National Park 2 times in the spring (April to May) of 2013 and summer (July). Flora identified at 10 forest roads examined were found out to be a total of 437 taxonomic groups including 41 orders, 97 families, 353 species, 68 variants, 13 kinds, 3 subspecies. Among them, 1 endangered species designated by the Ministry of Environment was found such as Grade II, Iris Koreana Nakai, 44 species of naturalized plant were identified, and 4 species of ecosystem disturbance organism designated by the Ministry of Environment were identified including ragweed, bogy branch, Rumex acetosella and cat’s-ear. The Urbanization index for all was 14.24%, and the Naturalization index was 10.07%. Among individual forest loads, the road with the lowest UI was found to be 2.27%, the road with the highest UI was 7.77%. NI was found between 4.46% and 11.86%. The difference of UI and NI in individual forest roads is found to appear depending on the degree of artificial intervention, that is, regular management of forest road and frequency of vehicle access.