对耕地产量,气排放和气候影响的辅助效益通过多目标优化农业肥溶液
Yinghua Yin1, Shufang Guo2, Qiyu Xu1
1State Key Laboratory of Efficient Utilization of Arable Land in China, Key Laboratory of Nonpoint Source Pollution Control Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China.
在中国优化肥料使用可以显著减少合成肥的使用和污染. 这一战略提高了作物产量,并通过畜牧搬迁提供了大量的经济效益.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 农业学是一种农业学.
背景情况:
- 优化肥料利用和减少对化学肥料的依赖对于实现可持续发展目标至关重要.
- 农田产量,气排放和温室气体效益的最佳肥料再分配在大型空间尺度上仍未确定.
研究的目的:
- 确定中国主要作物的最佳肥料替代率.
- 评估肥料再分配对污染,排放,作物产量和经济结果的潜在影响.
主要方法:
- 采用遗传算法和元分析来确定最佳的肥替代率.
- 量化减少合成的使用,反应性污染,氨和氧化物排放以及排放/洗.
- 农作物产量的估计变化和牲畜迁移的经济影响.
主要成果:
- 制定了一项战略,将合成的使用量减少13.3 Tg,反应污染量减少2.0 Tg.
- 氨和氧化排放量可以分别减少15.6%和16.2%,排放和漏减少32.9%.
- 八种主要高地作物的作物产量可能增加2.0-19.5%,估计在畜牧搬迁方面投资61亿美元,收益为259亿美元.
结论:
- 在中国,最佳的肥再分配提供了一个可行的策略,以减少对合成肥的依赖和相关的环境污染.
- 拟议的战略显著减轻了气排放,提高了作物生产率,为投资带来了相当大的经济回报.
- 转移大约2.55亿匹猪等价物,主要从中国中部到中国北部和东北部,对于实现这些环境和经济效益至关重要.
更多相关视频
10:29Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
Published on: March 21, 2016
06:52Lab-Scale Model to Evaluate Odor and Gas Concentrations Emitted by Deep Bedded Pack Manure
Published on: July 19, 2018
相关概念视频
Overview of Nitrogen Metabolism
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
Multiple Regression
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Environmental Applications of Microorganisms
Microorganisms in Agriculture and Food industry
The Roles of Bacteria and Fungi in Plant Nutrition
Key Elements for Plant Nutrition
