摘要
本文运用线性规划模型,以赤峰市为典型,定量地分析了畜草间的矛盾,给出了赤峰市最优畜种结构配置与合理的畜群周转模式。1989年赤峰市冷季饲草供给量只相当于家畜生长发育正常需要量的60％,冷季家畜所需的可消化粗蛋白质约缺少32％。饲草品质低劣和供给数量的严重不足是造成草地退化和家畜生产效率低下的内在原因。解决当前畜草矛盾,应从草地建设和牲畜结构调整两个方面入手。
In this paper, the interuction between livestock and forage supply is quantitatively analysed. Suggestians are given to optimize the animal composotion, flock structure and animals turnover pattern using a linear programing model. Result shows that forage supply meets only about 60％ of animal requirement and DCP of animal requirement was short of about 32％ in cold reuson in Chifeng Prefecture in 1989. It is also pointed out in this paper that low quality forage and shortage of forage supply are the internal factors which lead to grassland detericution and animal production decline, Therefore pasture land canstruction must be conducted and the composition of animal species and flock structure must he adjusted in order to solve this problem.
出处
《中国草地》
CSCD
1993年第4期21-26,共6页
Grassland of China
关键词
草地
草原资源
利用
grassland, livestock, model, efficienty.
