Long-term (≥20 years) application of fertilizers and straw return enhances soil carbon storage: a meta-analysis

Yu’e Li (), Shengwei Shi, Muhammad Ahmed Waqas, Xiaoxia Zhou, Jianling Li, Yunfan Wan, Xiaobo Qin, Qingzhu Gao, Shuo Liu and Andreas Wilkes
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Yu’e Li: Chinese Academy of Agricultural Sciences
Shengwei Shi: Beijing University of Agriculture
Muhammad Ahmed Waqas: Chinese Academy of Agricultural Sciences
Xiaoxia Zhou: Qingdao Agricultural University
Jianling Li: Chinese Academy of Agricultural Sciences
Yunfan Wan: Chinese Academy of Agricultural Sciences
Xiaobo Qin: Chinese Academy of Agricultural Sciences
Qingzhu Gao: Chinese Academy of Agricultural Sciences
Shuo Liu: Chinese Academy of Agricultural Sciences
Andreas Wilkes: Chinese Academy of Agricultural Sciences

Mitigation and Adaptation Strategies for Global Change, 2018, vol. 23, issue 4, No 7, 603-619

Abstract: Abstract Increasing soil carbon (C) storage is crucial to addressing climate change and ensuring food security. The C sequestration potential of the world’s cropland soil is 0.4–0.8 Pg soil C year−1, which may be achieved through the adoption of recommended management practices (RMPs), including fertilizer management. This study aimed to quantitatively evaluate the influence of long-term application of different fertilizers and straw retention on soil organic carbon (SOC) storage, to compare the calculated response ratios with Intergovernmental Panel on Climate Change (IPCC)-recommended default relative stock change factors, and to propose recommendations for enhancing SOC sequestration. The meta-analysis indicated that the long-term application of chemical fertilizers (CF), organic fertilizers (OF), combined chemical and organic fertilizers (CFOF), and straw return (SR) significantly enhanced the SOC storage. Response ratios varied significantly (p

Keywords: IPCC guidelines; Long-term fertilization; Meta-analysis; Mitigation strategy; Response ratio; Soil organic carbon storage; Straw return (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1007/s11027-017-9751-2

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