黄土高原由于干旱、风沙、水土流失等自然灾害和当地人民的滥垦、滥伐与自由放牧,植被受到严重破坏,致使该地区的农牧业生产长期处于停滞不前的状态,人民生活比较困苦。实践和研究证明,种草和发展草地植被是绿化黄土高原、改变自然面貌、调节生态平衡的重要条件,是控制水土流失和根治黄河的有效途径,是实现农业现代化 Due to the natural disasters such as drought, sandstorm and soil erosion and the indiscriminate reclamation, deforestation and free grazing of the local people in the Loess Plateau, the vegetation has been severely damaged. As a result, the production of agriculture and animal husbandry in this area has been at a standstill for a long time and the people’s livelihood is relatively poor . Practice and research have proved that grass planting and grassland vegetation development are important conditions for greening the Loess Plateau, changing the natural appearance and regulating the ecological balance, and are effective ways to control soil erosion and cure the Yellow River. It is also to realize agricultural modernization