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关于碳封存的方法研究,考虑从畜禽和家禽便的整个链使用中减少的排放量

Xuan Yu¹, Lixin Zhao¹, Zonglu Yao¹

¹Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Key Laboratory of Green and Low Carbon Agriculture in North China Plain, Ministry of Agriculture and Rural Development, Beijing, 100081, China.

Environmental research

|October 31, 2024

概括

有效的畜牧肥料管理是碳中和的关键. 这项研究提出了整个便链的温室气体计量系统,显示了养猪业显著的减排潜力.

科学领域:

农业科学农业科学
环境科学环境科学
气候科学气候科学

背景情况:

牲畜便管理对于实现碳中和目标至关重要.
目前的温室气体 (GHG) 计量方法需要对整个肥生命周期进行改进.
综合战略对于减少排放和促进可持续农业至关重要.

研究的目的:

为整个畜牧便链 (收集-处理-储存-使用-返回) 开发一个全面的温室气体计量方法.
评估中国使用猪的碳排放减排和封存潜力.
为优化畜牧业减排战略提供数据驱动的见解.

主要方法:

使用了IPCC 2019年温室气体排放会计指南.
应用生命周期评估 (LCA) 方法来定义会计边界.
开发了一套畜牧和家禽物的全链会计方法系统.
采用典型的技术模型和框架进行案例研究 (养猪).

主要成果:

在中国,六种典型的猪利用模式的温室气体排放系数在-48.82~40.54kgCO2e/t之间.
在2022年,中国猪的温室气体净排放量约为2.0×10^7tCO2e,利用减少了3.2×10^7tCO2e的排放量.
预计2025年的猪排放量范围从-1.8×10^7到1.3×10^7tCO2e,2030年的排放量范围从-3.1×10^7到4.5×10^6tCO2e.

结论:

拟议的全链会计方法有效量化温室气体排放和减少潜力.
猪资源的利用大大有助于缓解中国的温室气体排放.
研究结果支持制定政策,以有效减少畜牧业温室气体排放.

关键词:

会计方法会计方法减少排放的潜在减少.国际气候变化专门委员会和生命周期评估.动物和家禽便是动物和家禽便.土壤碳封存土壤碳封存整个资源利用链的资源利用.

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相关概念视频

The Carbon Cycle

The Carbon Cycle

Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.