[MIS19-P10] Carbon stock of coarse woody debris in Japanese forests
Keywords:soil carbon stock, forest ecosystem, inventory
The CWD data used in this study include dead wood, stump, and blighted tree. We obtained the average CWD carbon stock of 0.75±0.98 kg m-2, that is 8.3% of total soil carbon stock.
In secondary forests, CWD was produced by mortality dues to environmental stress, snow damage, wind damage, disease, insect pests, competition and aging. In contrast, CWD in plantation was generated by thinning or large-scale felling for forest management. The CWD in secondary forests, cedar plantation, and Japanese cypress plantation has average carbon stocks of 0.60±0.83 kg m-2, 1.16±1.24kg m-2, and 1.14±0.94kg m-2, respectively. These results suggest that the CDW carbon stock differs largely between secondary forest and plantation. Considering other conditions such as management practice and above ground biomass, we plan to report characteristics of CWD carbon stock in Japanese forest through different types and ages.