基于退耕还草的村域农牧结构优化生产模式——以甘肃省镇原县北庄村为例  

Optimization production model of agricultural ecosystem under conversion of cropland into grassland——a case study from Beizhuang Village,Zhenyuan County,Gansu Province

作　　者：王鹤龄[1] 王润元[1] 刘春芳[2] 牛俊义[3] 黄文德[3] 

机构地区：[1]中国气象局兰州干旱气象研究所甘肃省干旱气候变化与减灾重点实验室中国气象局干旱气候变化重点开放实验室,甘肃兰州730020 [2]甘肃省国土资源规划研究院,甘肃兰州730000 [3]甘肃农业大学农学院,甘肃兰州730070

出　　处：《草业科学》2008年第4期70-75,共6页Pratacultural Science

基　　金：科技部科研院所社会公益研究专项项目(2005DIB3J100);甘肃省自然基金(3ZS061-A25-010);中国气象局兰州干旱气象研究所启动经费;甘肃省气象局面上项目(2006-2)

摘　　要：以退耕还草工程示范区甘肃省镇原县北庄村为例,调查了其农业生产状况,应用线性规划模型对该地区农业生产结构进行规划调整,提出了适合该地区的优化生产模式。优化后小麦Triticum aestirum、玉米Zea mays、谷子、糜子、大豆Glycine max和油菜Brassica campestris的种植面积分别减少4.31%、36.75%、71.67%、92.65%、75.32%和67.03%;苜蓿Medicago sativa的种植面积增加了197.34%;牛、羊、猪和鸡的养殖数量分别增加53.36%、49.73%、104.87%和19.64%。优化后全村年纯收入可达209 856万元,比优化前2005年(124 628万元)增长了68.38%。优化后形成了种植业和畜禽养殖业协调发展,具有较高经济、社会和生态效益的农牧结合型生态农业生产模式。Based on the theory and method of linear program, this paper quantitatively analyzed the agricultural production structure of village agricultural ecosystem under conversion of cropland into grassland as a case in Beizhuang Village, Zhenyuan county, Gansu Province. The structure of the agricultural eco system was optimized through linear program model. After the optimization, the growing area of wheat, corn, millet, broom corn millet, soybean, rape reduce 4.31%. 36.75%. 71.67%. 92. 65%, 75. 32% and 67. 03% respectively; while alfalfa area increases 197. 34%. The quantity of cattle, sheep, pig and chicken increases 53. 36%, 49.73%. 104.87% and 19.64%. According to the above scheme, the net income of whole village is 209 856.26 Yuan. 68. 38% more than before the optimization in 2005 （124 627. 91 Yuan）. After the optimization, an ecological agriculture production pattern was formed in which cropping industry and animal industries develop coordinately with higher economy, social and ecological profits.

关 键 词：退耕还草 农业生态系统 优化模式 

分 类 号：F327[经济管理—产业经济]