산불 후 산림식생 및 토양환경의 변화

The Changes of Forest Vegetation and Soil Environmental after Forest Fire

  • 오기철 (경상대학교 농과대학 산림과학부) ;
  • 김종갑 (경상대학교 농과대학 산림과학부) ;
  • 정원옥 (경상대학교 농과대학 산림과학부) ;
  • 민재기 (상주대학교 산림자원학과)
  • Oh, Ki-Cheol (Faculty of Forest Science, College of Agriculture, Gyeongsang National University) ;
  • Kim, Jong-Kab (Faculty of Forest Science, College of Agriculture, Gyeongsang National University) ;
  • Jung, Won-Ok (Faculty of Forest Science, College of Agriculture, Gyeongsang National University) ;
  • Min, Jae-Ki (Depart. of Forest Resources, Sangju National University)
  • 투고 : 2001.06.12
  • 발행 : 2001.09.30

초록

This study was carried out to examine the recovery of forest ecosystem at the burned areas of coniferous (Mt. Chosdae) and broad leaved forest (Samsinbong in Mt. Chiri) by investigating the changes of forest vegetation. The results obtained are summarized as follows; 1. In the Samsinbong, the total number of species appeared at the burned area were 5 species at tree layer, 11 species at sub-tree layer and 24 species at herb layer, and at the unburned area were 5 species at tree layer, 14 species at sub-tree layer, 18 species at shrub layer and 23 species at herb layer, respectively. In the Mt. Chosdae, the total number of species appeared at the burned area only showed to 83 species at herb layer, and at the unburned area were 7 species at tree layer, 13 species at sub-tree layer, 21 species at shrub layer and 46 species at herb layer, respectively. 2. In the soil chemical properties of the burned area of Samsinbong, pH was 5.8, and contents of Organic matter, Total nitrogen, Available $P_2O_5$, Exchangeable $K^+$, Exchange $Ca^{{+}{+}}$ and Exchange $Mg^{{+}{+}}$ were 7.42%, 0.73%, 28.5mg/kg, 1.3me/100g, 13.3me/100g and 2.2me/100g, respectively. But they showed a tendency to decrease by passing the time. In the soil chemical properties of the burned area of Mt. Chosdae, pH was 5.3, and contents of Organic matter, Total nitrogen, Available $P_2O_5$, Exchangeable $K^+$, Exchange $Ca^{{+}{+}}$ and Exchange $Mg^{{+}{+}}$ were 6.42%, 0.25%, 24.4mg/kg, 0.7me/100g, 3.7me/100g and 2.1me/100g, respectively, and they also showed a tendency to decrease by passing the time. 3. An the burned and unburned areas of Samsinbong, the total evolved amounts of soil respiration were $4,049.1mg/m^2/h$ and $9,950.0mg/m^2/h$, respectively. An the burned and unburned areas of Mt. Chosdae, the total evolved amounts of soil respiration were $4,392.4mg/m^2/h$ and $8,286.5mg/m^2/h$, respectively.

키워드