The Korean Journal of Ecology

한국생태학회 (The Ecological Society of Korea)
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낙엽의 축적, 분해 및 무기화에 관한 모델정립과 그 적용

The Litter Accumulation, Decay and Turnover Models and their Validation

  • Chang, Nam-Kee (Dept. of Biology Education, Seoul National University, Sangji College, Kongju Teachers) ;
  • Sung-Kyu Lee (Dept. of Biology Education, Seoul National University, Sangji College, Kongju Teachers) ;
  • Bok-Seon Lee (Dept. of Biology Education, Seoul National University, Sangji College, Kongju Teachers) ;
  • Heu Baik Kim (Dept. of Biology Education, Seoul National University, Sangji College, Kongju Teachers' Colleage)
  • 발행 : 1987.06.01
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초록

Mathematical models of the litter accumulation, decay and turnover in the grassland and forest ecosystems of equilibrium state of the annual litter production were established to analyse the decay rates of organic and inorganic constituents of the litter. Those models were validated by an application to a Phragmites longivalvis grassland in a delta of the River Nakdong. The decay constants of cold-water-soluble fractions, other carbohydrates, hot-water-soluble fractions, cellulose, crude fat, lignin and crude protein in the litter were 0.730, 0.583, 0.555, 0.505, 0.479, 0.331 and 0.310 respectively. The amount of mineral nutrients such as N. P. K. Ca and Mg returned annually to the soil were estimated to 7.09, 1.34, 2.36, 4.37 and 0.79g/m2 respectively.

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