The Production and Decomposition of Litters in Miscanthus sinensis and Arundinella hitra Grasslands

억새와 새 초지에 있어서 낙엽의 생산과 분해에 관하여

An investigation was performed to reveal the relation between production and decomposition of the Miscanthus sinensis and Arundinella hirta grasslands in Mt. Kwanak. 1. The total annual litter productions of M. sinensis grassland A, B and A, hirta grassland were 2,267.12, 943.44 and 1,228.45 g/m$^{2}$, respectively. 2. The decay constants of litters of M. sinensis grassland A, B and A. hirta grassland were 0.732, 0.411 and 0.877. 3. The time required for the decomposition of half of the accumulated organic matter of M. sinensis A,B and 4. hirta were 0.9, 1.7 and 0.8 years, for 95% of elimination 4.1, 7.3 and 3.4 years, and for 99% of elimination 6.8, 12.2 and 5.7 years respectively. 4. The decomposition rate of grass litters was affected by the soil water content and grass species.

冠岳山의 억새 草地A와 B 및 새草地에 있어서 落葉의 生産, 堆積 및 分解를 硏究하였다. 1. 억새草地A와 B 및 새草地 落葉의 生産量은 各各 2,267.12, 943.44 및 1,228.48g/m$^{2}$였다. 2. 억새草地A와 B 및 새草地 落葉有機物의 分解常數는 各各 0.732, 0.411 및 0.877 이였다. 3. 草地落葉의 有機物이 억새草地A와 B 및 새草地에서 半減하는데 要하는 年數는 各各 0.9年 1.7年 및 0.8年이었고 95% 減少하는데는 4.1年, 7.3年 및 3.4年이었으며 99% 減少하는데는 6.8年, 12.2年 및 5.7年이었다. 4. 草地落葉의 分解速度에는 土壤含水量과 草種에 따라 顯著 差異가 있었다.