Woody Debris Stocks of Evergreen Broad-Leaf Forest in Mid-Subtropical Region of China

In Yingzuijie National Nature Reserve, P. massoniana forest, mixed broadleaf-coniferous forest and evergreen broad-leaf forest were investigated to study the changing characteristics of woody debris (WD) during various succession stages of evergreen broad-leaf forest. The results showed that during various succession stages of evergreen broad-leaf forest in Yingzuijie National Nature Reserve, WD storage of each forest ranged from 1.26 to 8.82 t/hm(2), with the order of P. massoniana forest < mixed broadleaf-coniferous forest < evergreen broad-leaf forest, that is, it increased from early to late stages of the succession. At different succession stages, coarse woody debris (CWD), CWD storage was 2-9 times more than FWD storage, revealing that CWD was dominant in WD of each forest. CWD biomass accounted for 0.66%-2.21% of arbor biomass, so the forests were at the developmental stage.