基于能耗评估的巴基斯坦可持续玉米机械化生产系统研究
发布时间：2024-07-11 06:44
实现粮食的有效供给,是南亚地区的重要问题。该地区的人口数量在过去50年间增加了3倍。但无论人口如何增涨,南亚许多地区的粮食产量已呈下降趋势,人均粮食消费量仍然保持不变。此外,人均耕地面积也在急剧下降,例如1980年至2010年间,孟加拉国的人均可耕地面积从0.11 ha减少到0.05 ha,印度从0.23 ha减少到0.13 ha,尼泊尔从0.15 ha减少到0.08 ha,巴基斯坦从0.24 ha减少到0.12 ha。提高农业机械化生产率,合理投入农业生产资料,有助于作物产量的提高和生产系统的可持续性发展。由于作物生产易受气候变化的影响,因此要仔细考虑农业生产措施对环境的影响。而保障粮食安全和环境安全需要提高生产力,实现资源的有效利用。针对该地区的大部分研究集中于农业生产资料投入的有效性和农业生产者的购买能力大小,没有基于农业机械化、能量利用效率及对环境影响的分析研究。本研究对巴基斯坦玉米生产机械化指标、能源利用效率进行了评价,并分析了其对环境的影响。采用基于能量的机械化指数(MI)为评价指标,分别采用多元回归和相关分析方法,研究不同的社会因素对机械化指数和对玉米产量机械化指数的影响...
【文章页数】：126 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter 1 Introduction
1.1 Background
1.2 Research significance and objectives
1.3 Review of literature
1.4 Research contents
1.5 Research innovations
1.6 Technological route
Chapter 2 Research theory
2.1 Study area
2.2 Sampling and data collection
2.3 Theory of mechanization
2.4 Theory of energy efficiency
2.5 Theory of environmental impact assessment
Chapter 3 Energy Efficiency Measures in Agriculture
3.1 Opportunities and constraints
3.2 Agricultural inputs
3.3 Farming Operations
3.4 Sources and coefficients of energy
Chapter 4 Quantification of mechanization index and its impact on crop productivity
4.1 Situation of agriculture mechanization
4.2 Technical details
4.3 Analytical technique
4.4 Results and discussion
4.5 Summary
Chapter 5 An Ensemble Approach for Assessment of Energy Efficiency of Agriculture system in Pakistan
5.1 Energy efficiency
5.2 Energetic assessment
5.3 Technical efficiency assessment
5.4 Ensemble data envelopment analysis
5.5 Results and discussion
5.6 Summary
Chapter 6 Toward Sustainable Crop Production System
6.1 Environmental sustainability
6.2 Life cycle assessment
6.3 Results and discussion
6.4 Summary
Chapter 7 Improving energy efficiency and management needs
7.1 Agriculture production system
7.2 Optimization of energy inputs
7.3 Socioeconomic factors
7.4 Results and discussions
7.5 Summary
Chapter 8 Conclusion and Recommendations
References
Acknowledgements
Resume
本文编号：4005400
【文章页数】：126 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter 1 Introduction
1.1 Background
1.2 Research significance and objectives
1.3 Review of literature
1.4 Research contents
1.5 Research innovations
1.6 Technological route
Chapter 2 Research theory
2.1 Study area
2.2 Sampling and data collection
2.3 Theory of mechanization
2.4 Theory of energy efficiency
2.5 Theory of environmental impact assessment
Chapter 3 Energy Efficiency Measures in Agriculture
3.1 Opportunities and constraints
3.2 Agricultural inputs
3.3 Farming Operations
3.4 Sources and coefficients of energy
Chapter 4 Quantification of mechanization index and its impact on crop productivity
4.1 Situation of agriculture mechanization
4.2 Technical details
4.3 Analytical technique
4.4 Results and discussion
4.5 Summary
Chapter 5 An Ensemble Approach for Assessment of Energy Efficiency of Agriculture system in Pakistan
5.1 Energy efficiency
5.2 Energetic assessment
5.3 Technical efficiency assessment
5.4 Ensemble data envelopment analysis
5.5 Results and discussion
5.6 Summary
Chapter 6 Toward Sustainable Crop Production System
6.1 Environmental sustainability
6.2 Life cycle assessment
6.3 Results and discussion
6.4 Summary
Chapter 7 Improving energy efficiency and management needs
7.1 Agriculture production system
7.2 Optimization of energy inputs
7.3 Socioeconomic factors
7.4 Results and discussions
7.5 Summary
Chapter 8 Conclusion and Recommendations
References
Acknowledgements
Resume
本文编号：4005400
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