The article explores how the variety of plants and animals in forests is crucial for keeping the forest healthy. It explains that having different species helps forests function well and cope with changes in their environment. The researchers focused on how biodiversity connects to the overall health of forest ecosystems. They discussed how the mix of species, interactions between them, and the impact of invasive species can affect the health of forests. The study emphasized the importance of protecting biodiversity to maintain the health and sustainability of forests, especially highlighting issues related to forests in China.