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Short-term reduction in cropping intensity improves soil quality of topsoil rather than subsoil

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

DOI

  • Wei Yao, China Agricultural University, Chinese Academy of Tropical Agricultural Sciences
    • ,
  • Qi Liu, China Agricultural University, Chinese Academy of Tropical Agricultural Sciences
    • ,
  • Jie Zhou, China Agricultural University
    • ,
  • Yongkang Wen, China Agricultural University, Chinese Academy of Tropical Agricultural Sciences
    • ,
  • Butao Tian, China Agricultural University, Chinese Academy of Tropical Agricultural Sciences
    • ,
  • Zhiqiang Qi, Chinese Academy of Tropical Agricultural Sciences
    • ,
  • Yadong Yang, China Agricultural University
    • ,
  • Zhaohai Zeng, China Agricultural University
    • ,
  • Leanne Peixoto
  • Huadong Zang, China Agricultural University

Enhancing cropping intensity is the most effective and significant method to improve regional crop production and ensure food security. However, our understanding of the impacts of reduced cropping intensity on soil quality and ecosystem multifunctionality (EMF) with soil depth remains incomplete in tropical regions. Here, we performed a 4-year field experiment to estimate the impacts of cropping intensity (continuous cropping, winter fallow, and annual fallow) on soil quality and EMF depending on soil depths. We found that reduced cropping intensity improved soil quality at the topsoil (0–10 cm), while it had no significant influences on soil carbon (C) and nitrogen (N) storage, as well as soil EMF at 0–40 cm. Soil microbes were limited by C and P but not co-limited by N in all three cropping systems. Reduced cropping intensity exacerbated microbial C limitation at 0–10 cm due to reduced additional C resources (i.e., rice straw and manure) input. Redundancy analysis and Pearson correlation showed that soil N significantly affected the C-, N-, and P-acquisition enzyme activities, and correlated positively with soil organic C, microbial biomass C, and available P. In conclusion, short-term reduction in cropping intensity improves topsoil quality but not soil EMF under paddy-upland rotations in the tropical region.

OriginalsprogEngelsk
TidsskriftLand Degradation and Development
Vol/bind34
Nummer8
Sider (fra-til)2393-2402
Antal sider10
ISSN1085-3278
DOI
StatusUdgivet - maj 2023

Bibliografisk note

Funding Information:
The Hainan Provincial Natural Science Foundation of China, Grant/Award Number: 320LH041; The Sanya Yazhou Bay Science and Technology City, Grant/Award Number: SYND‐2021‐02; The Special Fund for Agro‐scientific Research in the Public Interest, Grant/Award Number: 201503123‐10; The Central Public‐interest Scientific Institution Basal Research Fund for Chinese Academy of Tropical Agricultural Sciences, Grant/Award Number: 1630032017028 Funding information

Funding Information:
This study was financially supported by the Hainan Provincial Natural Science Foundation of China (320LH041), the Sanya Yazhou Bay Science and Technology City (SYND‐2021‐02), the Central Public‐interest Scientific Institution Basal Research Fund for Chinese Academy of Tropical Agricultural Sciences (No. 1630032017028), and the Special Fund for Agro‐scientific Research in the Public Interest (201503123‐10).

Publisher Copyright:
© 2023 John Wiley & Sons Ltd.

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