Through long-term monitoring and comparison of plantation and secondary forests in Wolong Nature Reserve, the results showed that the growth rate of tree height and DBH of plantation was higher than that of secondary forest;the shrub layer and herb layer coverage and plant species of plantation were lower than that of secondary forest;the source of colonization is single, and its thickness is also smaller than that of secondary forest. Because of high soil fertility, forest growth is rapid, and canopy is high, and understory plant species of conversion of cropland to forest land are less than other plantations;the plantation forest is single in species, with many diseases and insect pests and few wildlife traces, and its forest health is less than that of secondary forest. Plant resources such as bamboo, shrubs and herbs necessary for the survival of wild animals such as giant pandas are rarely preserved under plantations, and have a repulsive effect on wild animals such as giant pandas. It is necessary to adhere to measures for the natural restoration of the panda habitats, using local native tree species, and building the panda habitat with Wolong local characteristics.
Sichuan Forestry Exploration and Design
Giant panda habitat