主要作物生产的繁荣是否归因于耕地扩张或产量提高? 中国和印度之间的比较分析
Jiahao Zhai1, Lijie Pu2, Yumeng Lu1
1School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China; Key Laboratory of the Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing 210023, China.
The Science of the total environment
|May 12, 2024
概括
从2001年到2021年,中国和印度的耕地扩张,印度的耕地扩张.
科学领域:
- 农业科学 农业科学
- 粮食安全 粮食安全
- 可持续发展 可持续发展 可持续发展
背景情况:
- 中国和印度是世界上人口最多的国家,也是主要的农业生产国.
- 全球粮食安全在很大程度上受其农业产出的影响.
- 缺乏对它们的农业发展进行详细的比较分析.
研究的目的:
- 系统地比较中国和印度的耕地开发和主食作物生产动态.
- 分析耕作强度,耕地面积,收获面积,总产量和产量能力的差异.
- 为全球粮食安全和可持续农业实践提供见解.
主要方法:
- 对2001年至2021年的作物种植强度和作物生产数据进行比较分析.
- 检查耕地面积,收获面积,主食作物的总产量 (谷物,茎,豆类) 和产量.
- 对两国农业指标趋势和增长率的统计分析.
主要成果:
- 两国都增加了耕地和收获面积 (印度明显更多).
- 耕作强度有所不同:中国在非耕地,单一和双重耕作之间发生了转变;印度显示广泛的双重耕作.
- 总体主食作物产量在两国都上升 (中国的总体较高),但中国的增长取决于产量能力,而印度的增长取决于面积扩张.
结论:
- 中国的农业增长是由产量能力的提高驱动的,而印度的农业增长更多地依赖于土地扩张.
- 尽管印度的产量增加,但与中国的收益率差距仍然存在,并且已经扩大.
- 了解这些不同的农业战略对于全球粮食安全和可持续发展至关重要.
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