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中国是否适合走美国的农业机械化之路?

2017-08-29 14:21:15 来源:中国农机网 阅读量:51474 评论

导读:美国作为世界上的*国,其发达程度*,在农业的发展程度上也是称霸,其机械化发展程度相当高,而中国作为农业大国,是否可以借鉴美国的农业机械化发展经验?下文将从农机化发展现状、地理环境、农业类型、农业科技投入水平四大方面来分析。

  【中国农机网 本站原创】 美国作为世界上的*国,其发达程度*,在农业的发展程度上也是称霸,其机械化发展程度相当高,而中国作为农业大国,是否可以借鉴美国的农业机械化发展经验?下文将从农机化发展现状、地理环境、农业类型、农业科技投入水平四大方面来分析。
 
  农机化现状
 
  目前华北、东北、新疆等主要粮食产区部分达到了综合机械化程度,小麦、大豆、玉米、棉花、马铃薯等种植收获环节普遍采用专业的机械;华中、关中地区大部分实现了基本机械化,拖拉机小型收割机等等均比较常见;但是部分偏远落后地区、少数民族地区还停留在半机械化水平,牛车、马车甚至人力劳动还普遍存在。这是中国农业机械化不容忽视的现状。
 
  地理环境
 
  美国耕地面积28亿多亩,占国土总面积的20%以上,占世界耕地总面积的13%,约70%以上的耕地都是以大面积连片分布的方式集中在大平原和内陆低原,这种大面积连片分布的地理位置为美国的农业机械化的发展提供了先天的优势,而中国的耕地破碎化程度太高,具体表现在黄土高原地区和南方的梯田,有数据显示,中国2003年末户均地块数5.722块,其中规模不足0.5亩的有2.858块,规模在0.5-1.0 亩的有1.194块,在1.0-2.0亩的有0.813块,在2.0-3.0亩的有0.342块,规模在10亩以上的仅有0.233块。放眼望去,都没有10亩以上的一块平整土地,这种情况短时间内也无法完*,要实现全程机械化生产还有很长的路要走。
 
  农业类型
 
  美国土地资源丰富,农业人口少,形成了以高科技为主的大型农业机械化发展的道路,主要体现为大型农场为主的现代化农业生产类型。中国的情况就比较复杂,人口众多,耕地资源分布不平衡,主要农业类型以地域为主,不可能搞美国那种大规模的机械化生产。
 
  农业科技投入水平
 
  科学技术是生产力。农业的发展,终还是要依靠农业科技的进步与创新。纵观历史,农业科技始终*和贯穿美国农业的整个发展过程,其科研、教育、推广“三位”一体的庞大体系加巨额经费投入的模式对推动美国成为世界农业强国起到了关键的主导作用。仅在90年代美国每年用于农业科研的经费就达到了600多亿美元,对农业科技的投入强度明显大于整个社会平均的科技投入水平。而有关分析表明,我国农业科研投资强度仅为0.77%,远低于全国科研投资强度1.7%的水平,与美国的大力投入相比,中国的农业科技投入水平相差太大。
 
  综上所述,美国的农业机械化发展虽然很强大,但只适用于美国的农业形势,如果硬将其生产模式搬到中国的农业生产上,那就成了东施效颦。
 
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