Cited by 39Soil Carbon and Nitrogen DynamicsSoil Management and Crop YieldSoil erosion and sediment transport

Changes in soil physicochemical properties and bacterial communities at different soil depths after long-term straw mulching under a no-till system

Open access
Zhou, Zijun, Li, Zengqiang, Chen, Kun, Chen, Zhaoming, Zeng, Xiangzhong, Yu, Hua, Guo, Song, Shangguan, Yuxian +5 more·2021·SOIL

Published version of a preprint

Abstract

Abstract. Conservation tillage has attracted increasing attention over recent decades, mainly due to its benefits in improving soil organic matter content and reducing soil erosion. Under intensive conventional tillage systems, some studies have focused on the responses of soil properties in the topsoil to straw retention. However, long-term straw mulching effects on soil physicochemical properties and bacterial communities among different soil depths under a no-till system are still obscure. One twelve-year experiment was conducted that included straw removal (CK) and straw mulching (SM) treatments. Soil samples were collected at 0–5, 5–10, 10–20, and 20–30 cm soil depths. Most soil physicochemical properties and the relative abundances of bacterial phyla were varied with soil depth. Compared with CK, SM increased soil total nitrogen and organic carbon, available phosphorus and potassium, dissolved organic carbon and nitrogen, and water content. SM increased soil bacterial abundance but reduced the Shannon diversity of the bacterial community at 0–5 cm depth. SM increased the relative abundances of Proteobacteria, Bacteroidetes, and Acidobacteria but reduced those of Actinobacteria, Chloroflexi, and Cyanobacteria. SM had different effects on the relative abundances of some C- and N-cycling genera, for instance, increasing Rhodanobacter, Rhizomicrobium, and Terracidiphilus, and reducing Anaeromyxobacter, Mycobacterium, and Syntrophobacter. A principal coordinate analysis indicated that SM largely affected soil bacterial communities at topsoil depth. Soil pH and different nitrogen and organic carbon fractions were the major drivers shaping soil bacterial community. Overall, straw mulch is highly recommended for use under a no-till system because of its benefits to soil fertility and bacterial abundance. However, inorganic nitrogen fertilizer levels may be reduced under straw mulching to maintain or increase soil bacterial Shannon diversity in future studies.

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Crossref · 10.5194/soil-7-595-2021

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  • Improving physiochemical soil properties is a gradual process necessitating prolonged periods of sustained implementation of sustainable farming practices.

    “This indicates that, unlike biophysical soil attributes, improving physiochemical soil properties is a gradual process necessitating prolonged periods of sustained implementation of sustainable farming practices (Zhou et al., 2021).”

    From Agroecology for sustainable development: evidence on multidimensional performance from a cross-country TAPE assessment in Africa (2025) · cites this paper as Zhou et al., 2021

    The Abstract and Results §3.1 report improved soil physicochemical properties after 12 years of straw mulching under no-till. They do not establish that improvement was gradual, required prolonged implementation, or occurred more slowly than changes in biophysical attributes; those claims would require evidence about the course of change over time. (LLM, conf=0.84)

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1 of the 104 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. Lu, R. (Eds): Methods of soil and agro-chemistry analysis, China Agricultural Science and Technology Press, Beijing, China, 2000 (in Chinese).

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Authors
Zhou, Z., Li, Z., Chen, K., Chen, Z., Zeng, X., Yu, H., Guo, S., Shangguan, Y., Chen, Q., Fan, H., Tu, S., He, M., & Qin, Y.
Affiliations
  • Ministry of Agriculture and Rural Affairs (CN)
  • Qingdao Agricultural University (CN)
  • ZheJiang Academy of Agricultural Sciences (CN)
Venue
SOIL
Published
2021-09-08
Volume
7
Issue
2
Pages
595-609
ISSN
  • 2199-3971 (ISSN-L)
  • 2199-398X
OpenAlex
W3158876182
Cited by
39
References
104
Citations by year
2026: 11 · 2025: 8 · 2024: 10 · 2023: 4 · 2022: 6
FWCI
2.91
Type
journal article
Language
en
Open access
Locations
  • SOIL (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Greater South Information System
Funders
  • National Natural Science Foundation of China (41807103)
  • Sichuan Provincial Science and Technology Support Program (2019YJ0609)
  • National Key Research and Development Program of China (2016YFD0300907, 2016YFE0112700)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Management and Crop Yield
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
Keywords
straw mulch, no-tillage, soil bacterial communities, soil depth, soil physicochemical properties, soil organic carbon fractions, soil nitrogen fractions, soil available phosphorus, soil pH, soil bacterial diversity, soil fertility, conservation tillage

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