Enhancing Grassland Ecosystem Stability Is an Important Guarantee for Enhancing Grassland Ecosystem Services in KDC

The more complex the structure of grassland ecosystem, the higher the degree of its ecological stability, which further affects the multifunctional functioning of grassland ecosystem and eventually changes the ecosystem service capacity. The existing grassland ecosystem structure of rocky desertification control is single and the grassland planting is mainly based on single high-yielding forage grasses, for example, *Pennisetum sinese Roxb* L. and *Lolium perenne* L., which have weak stability, low disease resistance and short yield supply time, which seriously hinders the sustainable development of local ecosystems and lacks effective measures to consolidate the achievement of rocky desertification control. Grassland ecosystem stability is an important factor that limits the sustainable development of grassland ecosystem productivity. Therefore, we should combine the needs of local farmers, and select suitable grass species for planting; conduct experiments on grass planting under different rocky desertification habitats; explore the best planting density of grass species and legume-grass planting ratio; and then improve the plant diversity of grassland ecosystems and enhance their stability and resilience. At the same time, we should combine various monitoring means (such as field sampling, drone aerial photography and remote sensing, etc.), and strengthen the research on the regulation mechanism of grassland ecosystem stability with the guidance of enhancing the sustainability of KDC, so as to improve the service capacity of the grassland ecosystems of KDC, further enhance its ecological recovery quality and maintain the sustainable development of the karst ecological environment.
