甘肃中地区位于黄土高原西北部的丘陵沟壑区,气候干旱,植被稀疏,水土流失严重,生态环境恶劣,是种草种树的主要地区,省上已将种草养畜作为农业建设的一项战略措施。然而,种草也同种粮粮一样具有明显的气候适应性,需选择适生草种,按照气候条件因地制宜,才能获得好的经济效益。一、人工栽培牧草的气象指标人工栽培牧草的种类很多。研究人工栽培牧草的气象指标,应选择本地区广泛栽培的草种。根据群众习惯栽培及引种适应性好的草种,主要有紫花苜蓿、草木犀、红豆草 Gansu province is located in the hilly and gully regions of the northwestern Loess Plateau. It has arid climate, sparse vegetation, serious water and soil loss and poor ecological environment. It is a major area where the grass grows. Trees and livestock have been used as a part of agricultural construction in the province Strategic measures. However, grass grasses have the same climatic adaptability as grain crops. The selection of suitable grass species and the suitability of climate conditions will yield good economic benefits. First, the meteorological indicators of artificial cultivation of forage artificial cultivation of many types of grass. To study meteorological indicators of artificially planted pasture, grass species widely cultivated in the region should be selected. According to the habits of the people cultivation and introduction of adaptable grass species, mainly alfalfa, herbaceous rhizome, sainfoin