Assessment of the change of forest health of Backdu-daegan area in South Korea
2014
Hur, Tae-Chul | Park, Byung Bae
The purpose of this study is to assess the change of forest health for a 5-year interval on paired seven coniferous and deciduous forests at the Backdu-daegan region. Three criteria and 26 indicators covering from crown vitality to soil chemical properties were investigated in 2005 and 2010 at fixed permanent plots, which represent major types of forests at these forest ecosystems. Growth of diameter at breast height in 2010 has increased by 16% for coniferous forests and 14% for deciduous forests compared to those in 2005. The crown vitality of both coniferous and deciduous forests showed no significant change. The sequential change of maximum species diversity index varied by region at the deciduous forests, but was consistent at coniferous forests. Organic content, total nitrogen, and available phosphate were significantly increased, but soil pH at both forest types was decreased, especially at the coniferous forests by 5.4 times. This study suggests forest health, assessed by vegetation indicators, showed no change for the 5-year interval, but long-term monitoring is needed to verify the influence of soil properties on tree crown vitality.
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