Title Page
Contents
Abstract 7
I. INTRODUCTION 9
II. MATERIALS AND METHODS 11
III. RESULTS AND DISCUSSION 15
1. Soil properties 15
2. Litterfall dynamics 18
3. Carbon and nutrient dynamics 27
IV. CONCLUSION 32
LITERATURE CITED 34
국문초록 39
감사의 글 41
Table 1. General characteristics of three coniferous plantations in the study sites (2006). Values in brackets represent ranges. N=3 plots per species 14
Table 2. Soil carbon and nutrient concentrations at each depth of three coniferous plantations (standard errors in parenthesis) 17
Table 3. Distribution of litterfall components among three plantations coniferous plantations. Values represent percentages of total literfall by dry mass 26
Table 4. Nutrient concentration (%) of needle litter for three coniferous plantations under a similar site condition 30
Table 5. Nutrient content (kg/ha/yr) by needle litter inputs for three coniferous plantations under a similar site condition 31
Figure 1. Monthly litterfall inputs for three coniferous tree plantations under a similar site condition. Vertical bars indicate one standard error. 24
Figure 2. Annual amounts of litterfall components in three coniferous plantations under a similar site condition. Vertical bars indicate one standard error. Different letters on each litterfall component indicate a significant difference at P=0.05. 25