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- 저자 : 피정훈 ( Jung Hun Pee ) (검색결과 3 건)
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자갈 하중주에서 식생의 공간 분포 및 동태: 방태천의 사례
피정훈 ( Jung Hun Pee ),김혜수 ( Hye Soo Kim ),김경순 ( Gyung Soon Kim ),오우석 ( Woo Seok Oh ),구본열 ( Bon Yoel Koo ),이창석 ( Chang Seok Lee ) 한국하천호수학회 2013 생태와 환경 Vol.46 No.2
We clarified the background for establishment of vegetation by comparing the spatial distribution maps of vegetation and substrate on a gravel bar in the Bangtae stream located on Inje-gun of Gangwon-do, the central eastern Korea. The total vegetation coverage was higher in the interior and lower in the marginal parts of the gravel bar. Spatial distribution of vegetation on the longitudinal section of the gravel bar tended to be arranged in the order of shrub, subtree, and tree dominated vegetation types from the front (upstream) toward the rear (downstream) parts. Coverage of the herbaceous plants was higher in the central and rear parts and lower in the front and right parts of the gravel bar. Vegetation height was higher in the rear part and became lowered as move toward the front part. Substrate was distributed in the order of boulder, gravel, sand, and boulder from the front toward the rear parts. Ordination of stands based on vegetation data was arranged in the order of annual plant, perennial herb, shrub, and tree dominated vegetation as move from the right to the left parts on the axis I. Species richness was higher in the order of Pinus densiflora community, Phragmites japonica community, Salix gracilistyla community, Fraxinus rhynchophylla community, annual plant dominated vegetation, and Prunus padus for. padus community based on the species rank-abundance curve. The order based on the Shannon`s index was some different; diversity of Phragmites japonica community and Salix gracilistyla community, which showed higher dominance degree, were low differently from species richness. In conclusion, it was evaluated that the gravel bar newly established toward the upstream and vegetation dynamics of the gravel bar seemed to follow ecosystem mechanisms of succession. As were shown in the above results, the Bangtae stream corresponded to the upstream and thereby particle size of substrate was big. Therefore, they move by rolling and are accumulated for the upstream. Vegetation types were arranged in the order of woodland, shrub-land and grassland from the rear toward the front parts of the gravel bar and thereby reflected the formation process of the bar. However, the gravel bar is disturbed frequently by not only the running water but also the suspended sand as the dynamic space. Such disturbances cause habitat diversity and consequently led to high biodiversity.
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구본열 ( Bon Youl Koo ),김한결 ( Han Gyeoul Kim ),신재권 ( Jae Kwon Shin ),피정훈 ( Jung Hun Pee ),손성원 ( Seoung Won Son ),조용찬 ( Yong Chan Cho ) 한국임학회 2014 산림과학 공동학술대회 논문집 Vol.2014 No.-
성숙림의 매토종자는 교란 후 즉각적인 식생재생 및 식물상 저장고로서 중요한 생태적 역할을 수행함에도 불구하고 우리나라에서는 관련 연구가 수행된 바 없다. 본 연구는 성숙한 졸참나무-서어나무림 (광릉숲 18개소), 신갈나무림 (점봉산 30개소) 및 너도밤나무림 (울릉도 8개소)에서 매토종자의 다양성과 종조성, 그리고 지상부 식생과의 상관성을 분석하였다. 졸참나무림에서 37분류군, 신갈나무림에서 46분류군 및 너도밤나무림에서 17분류군의 매토종자를 확인하였다. 매토종자 중요 종은 졸참나무림에서 큰까치수염 (233.7/ha), 병꽃나무 (110.6/ha) 등, 신갈나무림에서 국수나무 (328.7ha), 노루오줌 (238.6/ha), 등 그리고 너도밤나무림에서 섬황벽 (83.1/ha), 등수국 (72.5/ha) 등이었다. 서열분석 결과, 너도밤나무림이 내륙의 것과 이질적인 종조성을 나타내었다. 지상부 식생과의 유사도는 졸참나무림 평균 10 %, 신갈나무림 평균 21 %, 너도밤나무림 3 %로 분석되었다. 우리나라 참나무과 성숙림의 매토종자에서는 숲 종보다 임연부 종이 높은 비율을 차지하여 일반적 매토종자 구성 특성을 잘 반영하였으며, 비교적 큰 임분 교란에 즉각적으로 반응할 수 있는 잠재성을 나타내었다. 또한 지상부와 지하부 식생의 낮은 유사성은 매토종자의 지속성을 잘 나타낸다. The seed banks of mature forest exhibit important ecological role in flora storage and spontaneous revegetation process after disturbance but related research has not been performed in South Korea. We analyzed species composition and diversity, and relationship between aboveground vegetation in soil seed banks in mature Quercus serrata forest (Gwangneung forest and n = 18), Q. monogolica forest (Mt. Jumbong-san and n = 30) and Fagus engleriana forest (Ulleung-do and n = 8). 37 species in Q. serrata forest, 46 species in Q. monogolica forest and 17 species in F. engleriana forest were germinated in soil. Majority of species in soil seed bank was edge or early successional species such as Lysimachia clethroides, Stephanandra incisa, Astilbe rubra, and Rubus takesimensis. Species composition of F. engleriana was different to that of in-land forest. Mean vegetation similarity between below and aboveground was higher in the order of Q. monogolica forest (21 %), Q. serrata forest (9 %) and F. engleriana forest (3 %). The seed bank of mature Fagaceae forest in South Korea well exhibited general pattern of high proportion of early seral species. Thus, high potential to severe forest disturbance was clarified. Low similarity between above and below vegetation means long term persistence of soil seed banks.
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일본잎갈나무조림지의 생태적 변화와 그 결과를 통해 확인된 복원 효과
김세미 ( Se Mi Kim ),안지홍 ( Ji Hong An ),임윤경 ( Yun Kyung Lim ),피정훈 ( Jung Hun Pee ),김경순 ( Gyung Soon Kim ),이호영 ( Ho Young Lee ),조용찬 ( Yong Chan Cho ),배관호 ( Kwan Ho Bae ),이창석 ( Chang Seok Lee ) 한국하천호수학회 2013 생태와 환경 Vol.46 No.2
Developmental process of vegetation over years after afforestation was analyzed in the Japanese larch (Larix kaempferi) plantations with different stand ages. The height and diameter of Japanese larch increased rapidly until 24 years after afforestation and tended to be blunted thereafter. The density of Japanese larch was similar with each other in the 8 and 17 years old stands but was reduced greatly in the 24 years old plantation and changing little thereafter. The floristic composition of the Japanese larch plantation did not show any clear trend depending on stand ages. The differences of species composition among plantation themselves with different ages were bigger than those between plantations and the reference stands, Mongolian oak (Quercus mongolica) stands. Japanese larch plantations showed a trend of succession to native vegetation dominated by Mongolian oak based on the results of analysis of frequency distribution by diameter class of major tree species. Species richness and diversity of all plantations were higher than those of the reference vegetation. As were shown in the above mentioned results, it can be evaluated that Japanese larch plantations practiced in the level of the functional restoration achieved successful restoration based on the floristic composition similar to the reference vegetation, the successional trend toward native vegetation, and higher species diversity compared with the reference vegetation.
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