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通过基于中国地区异质性的生态系统服务,为三个主食作物实现更高的生态效率

Lin Gao¹, Guishen Zhao¹, Long Liang²

¹College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.

The Science of the total environment

|July 24, 2024

概括

纳入生态系统服务价值 (ESV) 显著提高了中国的农业生态效率 (AEE).

科学领域:

农业科学农业科学
生态系统服务生态系统服务
环境经济学环境经济学

背景情况:

农田生态系统为粮食安全提供经济产品和至关重要的生态系统服务.
中国对农田生态功能的评估,特别是对主食作物的农业生态效率 (AEE),仍然不完整.
生态系统服务价值 (ESV) 对AEE和区域差异的影响尚不清楚.

研究的目的:

评估ESV对中国小麦,玉米和大米AEE的影响.
要区分管理和技术差距在AEE的低效率.
分析AEE的区域差异,并确定影响因素.

主要方法:

使用数据包围分析 (DEA) 来计算AEE.
使用集团边界和元边界方法来解释区域异质性.
在包括ESV和不包括ESV的情况下测量了AEE.

主要成果:

加入ESV大大提高了小麦,玉米和大米的AEE,节水,土壤保护和营养循环有着显著的贡献.
在生态敏感地区,特别是小麦和大米,AEE的改善更为明显.
ESV减少了生态效率低下,主要是管理效率低下,观察到区域差异.

结论:

生态系统服务对于提高农业生态效率至关重要,不仅仅是粮食产量.
可持续的农业发展需要将ESV纳入作物规划和区域专业化.
解决AEE的区域间差异对于优化中国的农业部门至关重要.

关键词:

生态效率生态效率生态安全生态安全生态系统服务生态系统服务农田生态系统农田生态系统粮食安全粮食安全主要的粮食作物是主食作物

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