Drivers of livestock manure nitrogen recycling on county scale in China
- Binhui Chen 1, Baojing Gu 2, Xiuming Zhang 3, Luxi Cheng 1, Chen Wang 1, Hongmin Dong 4, Gerard H Ros 5, Wim de Vries 5, Mengru Wang 5
- Binhui Chen 1, Baojing Gu 2, Xiuming Zhang 3
- 1State Key Laboratory of Soil Pollution Control and Safety, Zhejiang University, Hangzhou, 310058, China; College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China; Policy Simulation Laboratory, Zhejiang University, Hangzhou, 310058, China.
- 2State Key Laboratory of Soil Pollution Control and Safety, Zhejiang University, Hangzhou, 310058, China; College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China.
- 3International Institute for Applied Systems Analysis, Schlossplatz 1, A-2361, Laxenburg, Austria.
- 4Institute of Environmental and Sustainable Development in Agriculture, Chinese Academy of Agriculture Sciences, Beijing, 100081, China.
- 5Earth Systems and Global Change Group, Wageningen University & Research, Droevendaalsesteeg 3, 6708 PB, Wageningen, the Netherlands.
- 0State Key Laboratory of Soil Pollution Control and Safety, Zhejiang University, Hangzhou, 310058, China; College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China; Policy Simulation Laboratory, Zhejiang University, Hangzhou, 310058, China.
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View abstract on PubMed
Summary
This summary is machine-generated.China
Area Of Science
- Agricultural Science
- Environmental Science
- Environmental Management
Background
- China's position as the world's largest livestock producer generates substantial manure, posing significant resource waste and environmental challenges.
- Effective manure recycling is crucial for sustainable agriculture in China.
- Understanding the drivers of manure recycling is essential for developing effective strategies.
Purpose Of The Study
- To estimate the manure recycling ratio (MRR) across Chinese counties.
- To identify the natural and socioeconomic factors influencing MRRs.
- To inform region-specific strategies for enhancing manure recycling.
Main Methods
- Utilized data from 390,000 farms across 2853 Chinese counties (2017 data).
- Calculated MRR based on nitrogen content for four major livestock types.
- Employed statistical analysis to correlate MRR with environmental and socioeconomic variables.
Main Results
- Northern China exhibited significantly higher MRRs (>50%) compared to Southern China (<30%).
- Higher MRRs correlated with larger cropland, urbanization, and chicken farming.
- Lower MRRs were associated with higher temperatures, precipitation, pig farming, and an aging rural population.
Conclusions
- Natural factors (temperature, precipitation) significantly impact MRRs nationwide.
- Socioeconomic factors (cropland, urbanization) play a more critical role in specific regions (Eastern, Southwestern).
- Tailored, region-specific strategies are necessary to improve manure recycling efficiency in China.
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