• Title/Summary/Keyword: soil ecology

Search Result 1,229, Processing Time 0.023 seconds

The Community Structure in Old-Growth Forest of the Sangwonsa-Birobong Area, Odaesan National Park (오대산 국립공원 상원사-비로봉지역 노령임분의 군집구조)

  • 이경재;조재창;최영철
    • Korean Journal of Environment and Ecology
    • /
    • v.9 no.2
    • /
    • pp.166-181
    • /
    • 1996

  • This study was conducted to investigate the community structure of old-growth forest and vegetation-environment relationships in the Sangwonsa-Bironbong area, Odaesan National Park. TWINSPAN and DCA were used to identify and describe the community types for 45 sample sites. The results of DCA ordination showed that soil pH, soil organic matters and soil moisture played a role in determining community types in the study area. Community types of the study area were role in determining community types in the study area. Community types of the study area were classified into 6 groups by TWINSPAN; Abies holophylla-Carpinus koraiensis community. Each community types were significantly different in soil pH and soil organic matters. And each community types can be explained by geographical features.

  • PDF

Effects of environmental factors on the growth response of above- and below-ground parts of Mankyua chejuense, endangered endemic plant to Jeju province, in Korea

  • Kim, Hae-Ran;Shin, Jeong-Hoon;Jeong, Heon-Mo;You, Young-Han
    • Journal of Ecology and Environment
    • /
    • v.37 no.2
    • /
    • pp.61-67
    • /
    • 2014

  • Mankyua chejuense is a native endangered plant distributed only in Gotzawal, a forested wetland, in Jeju Province, Korea. In order to determine the optimal environmental conditions for the growth and development of M. chejuense, we investigated the above- and below-ground growth responses and survival rate to various soil texture (sand and clay), water regimes (flooding and non-flooding), and $CO_2+T$ (ambient and elevated) conditions. All of the treatments had significant effects on aboveground growth parameters, while only the water regime and $CO_2+T$ treatments influenced belowground growth. The survival rate of M. chejuense was about twice higher under the sand, non-flooding and elevated $CO_2+T$ conditions than clay, flooding and ambient $CO_2+T$ conditions. These results indicate that M. chejuense grows in well-drained sandy soil conditions and elevated $CO_2$ concentration and temperature situations. Thus, there is a need to maintain M. chejuense under constant non-flooding soil conditions by implementing appropriate soil drainage strategies.

  • https://doi.org/10.5141/ecoenv.2014.008 인용 PDF KSCI