您好，欢迎访问江西省农业科学院 机构知识库！

Differences of SOC storage and stability between soil layers influenced by long-term fertilization in a typical paddy soil of Southern China

文献类型： 外文期刊

作者： Chen, Xianni 1 ; Xu, Hu 2 ; Mustafa, Adnan 4 ; Huang, Qinghai 5 ; Liu, Kailou 5 ; Sun, Nan 3 ; Xu, Minggang 3 ;

作者机构： 1.Henan Univ Sci & Technol, Coll Agr, Luoyang 471000, Peoples R China

2.Northwest Univ Agr & Forestry Technol, Coll Resources & Environm Sci, Yangling 712100, Shaanxi, Peoples R China

3.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Arable Land Qual Monitoring & Evaluat, Minist Agr & Rural Affairs, Beijing 100081, Peoples R China

4.Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Eco, South China Bot Garden, Guangzhou 510650, Peoples R China

5.Jiangxi Inst Red Soil & Germplasm Resources, Jinxian 331717, Peoples R China

6.Shanxi Agr Univ, Inst Ecoenvironm & Ind Technol, Shanxi Prov Key Lab Soil Environm & Nutrient Resou, Taiyuan 030031, Peoples R China

关键词： SOC storage; Carbon fractions; SOC stability; Manure application; Soil layer

期刊名称：CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE （ 影响因子：6.6； 五年影响因子：6.6 ）

ISSN：

年卷期： 2023 年 10 卷 1 期

页码：

收录情况： SCI

摘要： Background The contribution of long-term fertilization to soil organic carbon (SOC) storage has been of great concern. To assess the effects of long-term fertilization on SOC storage and stability in top and sub-soil layers, soil samples were collected from a 29-year field experimental station in a typical paddy soil in southern China. The SOC storage of whole soil and SOC fractions was quantified at three soil depths (0-20, 20-40, 40-60 cm) under four treatments: no fertilization (Control), a combination of nitrogen, phosphorus and potassium (NPK), double the rates of NPK (2NPK), NPK plus manure (NPKM). Results The increase of Cinput- total was significantly higher than that of SOC storage among different treatments (p < 0.05), indicating that soil fixation of exogenous carbon is limited. Besides, the SOC accumulation and sequestration rates patterned as NPKM > 2NPK > NPK, and these rates were higher at 0-20 cm depth as compared to other depth intervals. Furthermore, for the whole profile, the SOC storage of active pool was higher in the Control (39.6 t Cha(-1)) than in other treatment (36.2 t Cha(-1), p < 0.05). Whereas, fertilization increased the SOC storage of passive pool, ranked as NPKM > 2NPK approximate to NPK > Control (p < 0.05), indicating that fertilization, especially organic combined with inorganic fertilization, improved SOC stability. From the perspective of soil layers, the difference of SOC storage among treatments for passive pool was mainly resulted from the difference at surface soil, and for active pool were the deeper layers. Additionally, manure application increased the difference among soil layers. Conclusion This study concluded that non-fertilized treatment could improve the SOC storage of active pool especially in deep soil layers, while fertilization especially manure application could improve the SOC storage and stability in surface soil and increased the difference among soil layers.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：江西省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台