数字农科院2.0

Large-scale farming enhances soil health contrasting with conventional management of smallholders: Insights from a field survey

文献类型： 外文期刊

作者： Xin LI; Dong WU;Yaping HUANG;Xiao YANG;Gilles COLINET;Caroline DE CLERCK;Wenju ZHANG;Minggang XU;Jeroen MEERSMANS

关键词： earthworms; microbial community; minimum data set; soil function; soil organic carbon

期刊名称： PEDOSPHERE

ISSN： 1002-0160

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： As an effective approach to achieving sustainable utilization of arable land resources, large-scale farming has been promoted to improve agricultural production efficiency and economic benefits with intensive advanced management practices. However, further evaluation is needed to determine whether large-scale farming can effectively improve soil health without increasing soil contamination. Soil health under large-scale farming was compared with smallholder management with 39 physical, chemical, biological, and environmental indicators. Large-scale farms under the commercial organic compost application and conventional fields in southeastern China were chosen in the field survey. Results showed that aggregate stability, soil organic matter (OM), available nutrients, and microbial biomass under large-scale management were significantly higher. Large-scale farming with organic compost altered microbial community and structure with a higher ratio of Fungi to Bacteria (F/B) and a lower ratio of Gram-positive bacteria to Gram-positive bacteria (G+/G-). The soil fertility index and biological index were respectively 36.5% and 24.2% higher in large-scale farms than in conventional fields. However, there was no significant difference in soil environmental indices between the two management modes. Edaphic indicators of bulk density, penetration resistance, mean weight diameter, soil OM, DOC, earthworm biomass, gram-negative bacteria, and bacteria were identified by network analysis as key indicators of soil health assessment. The soil health index based on these indicators of large-scale farming was 23.4% higher than that of conventional management by smallholders, with higher structural stability, total and active organic carbon, and quantities of soil fauna and microorganisms. Similarly, the farmland quality index and soil health index based on all indicators under large-scale management were respectively 4.2% and 38.3% higher than those under conventional management. Overall, large-scale farming was cost-effective in enhancing soil health by improving soil fertility and microbial biomass without increasing soil pollution risks with specific commercial organic compost. This emphasized the advantages of large-scale farming in sustainable agriculture production through organic inputs.

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