摘要
天然针茅草地是形成我国中温型草原亚带的重要群体 .4年定位研究表明 ,牧草生物产量与降水、气温呈正相关 ;降水受到欧亚大气环流和西风环流指数的制约 .牧草粗蛋白质、粗脂肪、钙、磷含量呈“双峰”型的季节动态 ,是由于降水影响牧草生长发育节律所致 .针茅草地均属NC营养型 ,适宜发展皮、肉、乳兼用家畜 .
The stipagobica Roshev land is very important part of forming midd-temperate zone in China.After studying in four years ,It shows the biological yield of the grass is direct proportion with precipitation and climate;The precipitation is affected by atomosphetive circulation of Asia-Europe and western wind circulation ,the grass contained crude protein,crude fat,calcium,phosphorus show double peaks seasonal change,which is caused by precipitation.The Stipagobica Roshev is NC nourishment,and suit to livestocks.
出处
《内蒙古民族大学学报（自然科学版）》
2003年第1期46-49,共4页
Journal of Inner Mongolia Minzu University：Natural Sciences
