摘要摘要自上世纪80 年代以来，世界大豆生产格局变化显著，美国大豆生产份额不断下降，中国大豆产量也逐年减少，而南美的巴西和阿根廷所占的生产份额则不断提高。本文通过分析发现，在早期，美国长期垄断世界大豆生产市场的原因在于该国非常重视大豆生产的科学化管理及政府支持。然而，随着大豆市场价格的上涨，由于耕种面积有限，每年土地的开垦面积有限，加上和劳动力价格昂贵等因素，美国大豆产量增长速度缓慢。南美后备耕地资源充裕，随着世界大豆价格的提高，土地开垦面积扩张快，又从美国引进的转基因大豆种子，加上政府的支持与科学化的管理，大豆产量不断提高，在能够自足的同时还能大量出口。同时，由于中国主要种植非转基因大豆，且土地资源紧张，大豆种植收益相对低下，政府支持力度不足等原因，中国大豆产量逐年下降。南美大豆的崛起有效提供了世界大豆供应量，并抑制了世界大豆价格的上涨，并进一步推动了中国大豆进口规模的扩张，使中国大豆种植面积逐年缩减。基于上述分析结果，本文建议，中国应鼓励企业到南美投资大豆产业，并进一步加大对中国大豆种植的扶持力度。27637
毕业论文关键词 大豆 世界生产格局 变迁原因
Title Analysis of the Reasons of Changes on World Soybean Production Pattern
Abstract Since the 1980s, the world's soybean production patterns change significantly, decliningshare of US soybean production, China's soybean production is also decreasing, while the shareof production in South America, Brazil and Argentina share is rising. Through the analysis wefound that in the early days, the United States long-term monopoly of the world market becausethe soybean production in the country attached great importance to scientific management andgovernment support for soybean production. However, with the rise in soybean market prices,due to the limited acreage, cultivated land area per year is limited, coupled with high labor costsand other factors, US soybean production growth slow. South America cropland abundantresources, along with the improvement of world soybean prices, land reclamation area of fastexpansion, and from the United States to introduce genetically modified soybean seeds, plussupport for the government and scientific management, soybean production continues toincrease, at the same time capable of self-sufficiency but also a large number of exports.Meanwhile, the Chinese major planting non-GM soy and land resource constraints, soybeanincome is relatively low, the lack of government support and other reasons, China's soybeanproduction is declining. The rise of the South American soybean effectively provides theworld's soybean supply, and suppress the rise in world soybean prices, and further promote theexpansion of the scale of China's soybean imports, the Chinese soybean acreage reduction eachyear. Based on the above analysis, this paper suggests that China should encourage companiesto invest in South America's soybean industry, and to further increase efforts to support China'ssoybean planting.Keywords Soybean World production pattern Reasons of Changes
目次
1引言2
1.1研究背景与意义2
1.2文献综述3
1.3本文研究内容及结构4
1.4可能的创新与不足4
2世界大豆生产格局的历史变迁5
2.1美国垄断时期5
2.2南美的崛起5
2.3中国大豆的现状6
3世界大豆格局变迁原因的分析7
3.1美国大豆产量增长速度趋缓的原因7
3.2南美大豆产量快速提高的原因8
3.3中国大豆产量逐年下降的原因9
4世界大豆生产格局变化对中国大豆的影响分析11
4.1对中国大豆种植面积进口数量的影响11
4.2对中国大豆进口价格的影响12
5政策建议14
5.1鼓励中国企业投资南美大豆产业14 世界大豆生产格局变迁原因的实证分析:http://www.751com.cn/jingji/lunwen_22165.html