Characteristics of Changes to POC and Maoc After Straw Returning in China

A Meta‐Analysis

Bibliographic Data

ID21648845
AuthorsNing Yang (0009-0006-9900-9954, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Miaomiao Zhang (0000-0003-0279-2999, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Xiping Pan (College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Pengfei Dang (0009-0007-9986-8588, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Shiguang Wang (0000-0001-8959-5634, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Xiaoqing Han (0000-0002-8969-1746, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Xiaofan Wang (0000-0003-0295-2462, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Cuihong Zhang (0000-0001-7247-7746, Yan'an Institute of Agricultural Sciences Yanan Shaanxi China), Min Meng (0000-0002-1977-4650, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Wen Wang (0000-0002-4944-859X, College of Life Science, Yulin University Yulin Shaanxi China), Xinghua Zhang (0000-0002-5206-7915, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China), Kadambot H M Siddique (0000-0001-6097-4235, The UWA Institute of Agriculture and School of Agriculture & Environment, the University of Western Australia Perth WA Australia), Yajun Li (0000-0001-6690-2662, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China, corresponding author), Xiaoliang Qin (0000-0002-2408-622X, College of Agronomy/State Key Laboratory of Crop Stress Resistance and High‐Efficiency Production, Northwest A&F University Yangling Shaanxi China, corresponding author)
Year2025
Volume36
Issue15
Pages5199-5211
Publication date2025-09-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueLand Degradation and Development (JOURNAL)
Journal identifiersISSN: 1085-3278 • E-ISSN: 1099-145X
PublisherWiley (PUBLISHER • GB)
DOI10.1002/ldr.5696
OpenAlexW4411249642
LanguageEN
Citations received1
References cited93

Straw returning is widely practiced in China to enhance soil organic carbon (SOC). However, how it affects SOC fractions—specifically, particulate organic carbon (POC) and mineral‐associated organic carbon (MAOC) remains unclear. In this meta‐analysis, we synthesized 792 paired observations to assess the impacts of straw returning on SOC fractions across diverse climatic conditions, soil properties, and agronomic practices in China. The results showed that straw returning significantly increased SOC, with a larger contribution from POC than MAOC. The enhancement of POC decreased with rising mean annual temperature (MAT) and mean annual precipitation (MAP), while MAOC increased under these same conditions. Higher quantities of straw input led to greater increases in POC and MAOC. Conventional tillage had a more favorable effect on SOC, POC, and MAOC than no‐tillage systems when combined with straw returning. The most substantial improvements were observed with straw returning durations between 5 and 10 years. Soils with neutral and high C/N ratios exhibited greater potential for carbon sequestration. Furthermore, optimal application rates of nitrogen (100–240 kg ha −1 year −1 ), phosphorus (110–200 kg ha −1 year −1 ), and potassium (80–160 kg ha −1 year −1 ) fertilizers maximized POC accumulation by promoting aboveground biomass and enhancing soil aggregate formation. This study provides new insights into how well‐managed straw returning can improve the stabilization and functioning of soil organic carbon pools, offering a scientific foundation for developing regional straw management strategies

China · Geography · Chemistry · Polymer-Based Agricultural Enhancements

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