黄土高原典型草原农业系统生产结构优化模式研究 Ⅱ三类农户生产结构优化模式扩展分析

STUDIES ON THE STEPPE AGRO-GRASSLAND SYSTEM OPTIMAL PRODUCTIVE STRUCTURE IN THE LOESS PLATEAU II ENLARGING ANALYSIS ON OPTIMAL PRODUCTIVE STRUCTURE FOR THERE TYPED FAMILY

在没有灌溉条件的黄土高原典型草原农业系统 ,运用线性规划计算机软件在对以牧为主、半农半牧和以农为主三类农户农业生产结构进行优化研究的基础上 ,进一步对以牧为主农户养殖业收入对其农业收入的贡献性、以牧为主和半农半牧农户生产结构中物质能量状况进行了分析。结果表明 :养殖业收入与家庭农业收入具有高度的正相关 ,以人工草地为枢纽的草地农业系统其系统的经济生态效益均高于以小麦为主的谷物系统 ,大力发展人工饲草基地和舍饲草食家畜是农民增加收入、脱贫致富的重要途径。

Based on the productive structures for three kinds of family-farm, semi-agricultural and semi-pastoral, and ranch in the steppe agro-grassland system in no irrigation region in the loess plateau be optimized by application of linear programming and computer, the authors analyzed the correlated character of income from animal and farm in ranching family. At the same time, the actualities of substance and energy in semi-agricultural, semi-pastoral and ranching family were analyzed. The result indicated that the animal production played an important role for animal farmer income from agriculture,and they had highly positive correlation. The economic and ecological results of the agro-grassland system by ties of the grass industrilization were higher than the agriculture system which regarded wheat as the most important agriculture production. Developing agricultural grassland and the livestock of confinedness were an important way for farmers to increase income and eradicate poverty and make rich.