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Effect of iron-rich organic fertilizer on soil organic matter and bacterial community in heavy soda saline-alkali soil
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Wen-yue SHAO1, 2, Rui YU2, *, Guang-ying ZHAO1, 3, 4, *, Xia WU1, 2, Wen-cong YANG1, 2, Ning YUAN1, 2, Meng-yue LIANG1, 2, Na-na LUO2
China Environmental Science | 2025, 45(8) : 4458 - 4469
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China Environmental Science | 2025, 45(8): 4458-4469
• Soil Pollution Control •
Effect of iron-rich organic fertilizer on soil organic matter and bacterial community in heavy soda saline-alkali soil
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Wen-yue SHAO1, 2, Rui YU2, *, Guang-ying ZHAO1, 3, 4, *, Xia WU1, 2, Wen-cong YANG1, 2, Ning YUAN1, 2, Meng-yue LIANG1, 2, Na-na LUO2
Affiliations
  • 1.College of Geographic Science, Harbin Normal University, Harbin 150025, China
  • 2.Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
  • 3.Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions, Harbin Normal University, Harbin 150025, China
  • 4.Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety, Harbin 150025, China
Published: 2025-08-20
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A heavy soda saline soil was seleeted and rice was cultivated rice by potting method without applying organic fertilizers as a blank control (CK) to study the effects of application of common organic fertilizer (M0), 1% biochar loaded nano Fe3O4 (BC-Fe3O4 NPs) added composted organic fertilizer (M1) and 1% biochar loaded iron nanoparticles (BC-FeNPs) added composted organic fertilizer (M2) on the effects of soil physicochemical properties, nutrient effectiveness, enzyme activity and bacterial community changes. The results showed that the soluble salt content was significantly reduced by 23.31% (P<0.05) in M2treatment compared with M0. Compared with M0, the application of iron-rich organic fertilizer increased the total organic carbon content of soda saline soil by 4.95%. Compared with M0, the application of M2 significantly increased the content of Fe-bound organic carbon (Fe-OC) by 66.92%. Compared with CK, organic fertilizers increased soil quick-acting potassium and quick-acting phosphorus contents by 262.51%~521.28% and 222.99%~311.85%, respectively. Compared with M0, M2 treatment significantly increased the activities of sucrase, catalase and alkaline phosphatase, as well as the abundance and diversity of soil bacterial communities, and the relative abundance of Aspergillus, Bacteroidetes and Actinobacteria in the soil. The relative abundance of the above bacterial phyla was positively correlated with the fast-acting nutrient content of saline soil. Therefore, 1% BC-FeNPs composted organic fertilizer can significantly reduce soil soluble salt content, significantly increase total organic carbon content by promoting Fe-OC formation, and increase the abundance and diversity of bacterial communities, which is conducive to the fertilization of heavy soda saline soils.

iron-rich organic fertilizer  /  iron-bound organic carbon  /  soil organic matter  /  soda salinity improvement
邵玟玥, 于锐, 赵光影, 吴霞, 杨文聪, 袁宁, 梁梦月, 罗那那. 富铁有机肥对重度苏打盐碱地土壤有机质及细菌群落的影响. 中国环境科学, 2025 , 45 (8) : 4458 -4469 .
Wen-yue SHAO, Rui YU, Guang-ying ZHAO, Xia WU, Wen-cong YANG, Ning YUAN, Meng-yue LIANG, Na-na LUO. Effect of iron-rich organic fertilizer on soil organic matter and bacterial community in heavy soda saline-alkali soil[J]. China Environmental Science, 2025 , 45 (8) : 4458 -4469 .
Appendix
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Year 2025 volume 45 Issue 8
98
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Article Info
  • Receive Date：2025-01-07
  • Online Date：2026-10-08
  • Published：2025-08-20
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  • Received：2025-01-07
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Affiliations
    1.College of Geographic Science, Harbin Normal University, Harbin 150025, China
    2.Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
    3.Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions, Harbin Normal University, Harbin 150025, China
    4.Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety, Harbin 150025, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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