Seasonal changes in the moisture content of three fallen log components (heartwood, sapwood, and bark) in different decay classes (decay classes 1–5 for heartwood and sapwood, decay classes 1–3 for bark) at each critical period in the alpine fir forest of the eastern Qinghai-Tibet Plateau.

The data are presented as the means (SE, n = 3). SP: seasonal snow cover period, TP: snow thawing period, EG: early growing season, LG: late growing season.