辽宁省坡耕地作物生产潜力研究  

Study on Potential Grain Productivity of Hilly Fields in Liaoning Province

作　　者：刘扬[1] 那波[1] 梁强[1] 甄冰[1] 贾树海[1] 

机构地区：[1]沈阳农业大学土地与环境学院,辽宁沈阳110161

出　　处：《辽宁农业科学》2006年第2期12-15,共4页Liaoning Agricultural Sciences

摘　　要：采用机制法对辽宁省坡耕地的玉米、高粱、大豆三种主要作物生产潜力进行了估算,并分析了影响该地区现实生产力的主导因子。研究结果表明,坡耕地上作物的生产潜力玉米为6 935 kg/hm2,高粱为5 920 kg/hm2,大豆为5 627 kg/hm2。在可控环境因子中,坡度对作物生产潜力的影响最大,其次是温度和水分因子。The potential grain productivity of corn,broomcorn and soybean is respectively calculated by using mechanism method, and the vital factor that affects practical grain productivity of hilly fields in Liaoning province is analyzed. It is surveyed that in this region the potential productivity of corn is 6 935 kg/ hm^2; the potential productivity of broomcorn is 5 920 kg/hm^2; the potential productivity of soybean is 5 62;7 kg/hm^2. At the same time, slope is the greatest factor that can be controlled for impacting on potential productivity,and then temperature and soil water are the second ones.

关 键 词：作物生产潜力 机制法 坡耕地 辽宁省 

分 类 号：S162.5[农业科学—农业气象学]