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选择幼羊分别在有林草场和天然草场进行放牧。通过测定得知：有林草场试验幼羊生长状况和天然草场试验幼羊生长状况具有显著差异，说明营造草牧场防护林，不仅改善了天然草场的微域气候条件，而且增加了牧草的种类和牧草的产量，为试验幼羊提供了良好的生活环境，能够显著提高幼羊当年生产效率。所以，营建草牧场防护林是提高半农半牧区畜牧业生产的有效途径之一。
Select young sheep in the grassland and natural grassland grazing. The results showed that there was a significant difference between the growth status of young sheep and the growth status of natural grass in the pasture, which indicated that the construction of grassland shelterbelt not only improved the micro-climatic conditions of the natural grassland, but also increased the species of forage and pasture Yield, provide a good living environment for the test young sheep, can significantly improve the production efficiency of young sheep year. Therefore, the construction of pasture shelter grass is to improve the semi-agricultural and pastoral animal husbandry production an effective way.