• Title/Summary/Keyword: 종조성

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Early Responses of Planted Quercus serrata Seedlings and Understory Vegetation to Artificial Gap Treatments in Black Locust Plantation (아까시나무림에서 인공 숲틈 처리에 대한 졸참나무 식재목 및 하층식생의 초기 반응)

  • Cho, Yong-Chan;Kim, Jun-Soo;Lee, Jung-Hyo;Lee, Heon-Ho;Ma, Ho-Seob;Lee, Chang-Seok;Cho, Hyun-Je;Bae, Kwan-Ho
    • Journal of Korean Society of Forest Science
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    • v.98 no.1
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    • pp.94-105
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    • 2009

  • Black locust (Robinia pseudoacacia) stand is representative lowland exotic plantation with low ecological quality and arrested succession in South Korea. To facilitate succession and restore natural vegetation, small canopy gaps (${\sim}57m^2$), which can modify minimally structural variables and reduce restoration related disturbances on stand, was established in the black locust stand, and oak (Quercus serrata) seedlings were introduced in the gap. Two types of varying levels were introduced for gap creation; cutting (C) and girdling (G) on canopies. Understory removal (CU and GU) treatment was applied as subtypes of structural modification. Growth (diameter, height and leaf area) of target species and responses (species composition, diversity and coverage) of understory community were monitored during study years (2007~2008). Canopy openness was different significantly among treatments but not for light availability. Based on the result of logistic regression, growth of height and leaf area of seedlings were significant variables on seedling survival. Height and leaf area of seedlings were increased during study years, although radial growth was reduced. During study years, there were no significant differences in species composition and diversity, and total coverage increased about 20%. Increase of resources by gap creation and understory removal likely affect growth of target species. Small gap creation was effective to reduce understory responses in composition and diverstiy. Synthesized, growth of target species and responses of understory community to small canopy gap creation exhibited, in short term, possibility of utilization in alternative forest restoration and management option. Long-term monitoring is necessary to certificate effect of artificial gap creation on forest restoration.

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Ecological Changes of the Larix kaempferi Plantations and the Restoration Effects Confirmed from the Results (일본잎갈나무조림지의 생태적 변화와 그 결과를 통해 확인된 복원 효과)

  • Kim, Se-Mi;An, Ji-Hong;Lim, Yun-Kyung;Pee, Jung-Hun;Kim, Gyung-Soon;Lee, Ho-Young;Cho, Yong-Chan;Bae, Kwan-Ho;Lee, Chang-Seok
    • Korean Journal of Ecology and Environment
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    • v.46 no.2
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    • pp.241-250
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    • 2013

  • 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.

  • https://doi.org/10.11614/KSL.2013.46.2.241 인용 PDF KSCI

Distribution of Fishes around the Offshore Wind Farm at the Southern Part of Yellow Sea by Trawl Net (저인망에 의한 서남해 해상풍력 실증단지 주변 해역의 어류분포)

  • Choi, Youn;Lee, Heung-Heon;Oh, Jeong-Kyu
    • Korean Journal of Ichthyology
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    • v.26 no.3
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    • pp.222-229
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    • 2014

  • As a study for offshore wind farm, we investigated the fish fauna of the Wi-do, Younggwang-gun, Chollabuk-do, Korea. From the four times collection of fish species from October 2013 to June 2014, we collected 46 species of 26 families including 9 orders. Among them, the fish of family Gobiidae includes the most number of six species (13.6%). The dominant species was the Argyrosomus argentatus with 53.10%. Total of 17 fish species, including the Cynoglossus joyneri were collected from all of four collecting sites. On the other hand, 13 species including Inimicus japonicus were collected from only one site. Being the wind farm under construction, fish will temporary decrease in this area. But in the long term, we think that Oplegnathus fasciatus, Sebastes shlegelli and others will increase with good inhabited environment provided by the wind farm structures.

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