Details
| Original language | English |
|---|---|
| Journal | Land Degradation and Development |
| Early online date | 24 Sept 2024 |
| Publication status | E-pub ahead of print - 24 Sept 2024 |
Abstract
Tillage and straw returning are promising practices to improve soil quality, especially because of the unclear controlling effects on microbial communities and functions. A 5-year field experiment in a winter wheat-summer maize cropping system was implemented in the North China Plain to address this research gap. Management practices were deep tillage, rotary tillage, and no-tillage, each with either wheat only or both wheat and maize straw returning. Shotgun metagenomic sequencing was performed to investigate the microbial community, diversity, co-occurrence network, and function in the topsoil (0–20 cm). The associations between soil physiochemical properties and microbial community characteristics were also evaluated. Rotary tillage with only wheat straw returning (RTS) significantly increased Shannon's diversity index by 0.24%–1.71% compared to other treatments. No-tillage with only wheat straw returning (NTS) showed the most stable microbial network with the highest betweenness centrality (199.09), average path distance (2.31), and modularity (0.50). NTS had the highest relative abundance of microbial carbon (C), nitrogen (N) metabolisms, and C fixation pathways. Among deep tillage practices, both wheat and maize straw returning (DTD) were more beneficial to the stability of microbial networks than only wheat straw returning (DTS), yet without improvement in microbial diversity and function. In conclusion, microbial community and function are practical predictors of variations in soil nutrient availability, and pH value in response to different tillage and residue management practices. In particular, our study provides a basis for the development of a sustainable crop residue management system.
Keywords
- microbial community, microbial function, microbial network, straw returning, tillage practice
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Chemistry
- Social Sciences(all)
- Development
- Environmental Science(all)
- Agricultural and Biological Sciences(all)
- Soil Science
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In: Land Degradation and Development, 24.09.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Microbial Community and Functions Depending on Tillage and Straw Returning Management
T2 - Consequences for Soil Health and Ecosystem Services
AU - Liu, Qing
AU - Dai, Hongcui
AU - Wang, Liang
AU - Qian, Xin
AU - Gao, Yingbo
AU - Zhang, Hui
AU - Liu, Kaichang
AU - Li, Zongxin
AU - Zamanian, Kazem
N1 - Publisher Copyright: © 2024 John Wiley & Sons Ltd.
PY - 2024/9/24
Y1 - 2024/9/24
N2 - Tillage and straw returning are promising practices to improve soil quality, especially because of the unclear controlling effects on microbial communities and functions. A 5-year field experiment in a winter wheat-summer maize cropping system was implemented in the North China Plain to address this research gap. Management practices were deep tillage, rotary tillage, and no-tillage, each with either wheat only or both wheat and maize straw returning. Shotgun metagenomic sequencing was performed to investigate the microbial community, diversity, co-occurrence network, and function in the topsoil (0–20 cm). The associations between soil physiochemical properties and microbial community characteristics were also evaluated. Rotary tillage with only wheat straw returning (RTS) significantly increased Shannon's diversity index by 0.24%–1.71% compared to other treatments. No-tillage with only wheat straw returning (NTS) showed the most stable microbial network with the highest betweenness centrality (199.09), average path distance (2.31), and modularity (0.50). NTS had the highest relative abundance of microbial carbon (C), nitrogen (N) metabolisms, and C fixation pathways. Among deep tillage practices, both wheat and maize straw returning (DTD) were more beneficial to the stability of microbial networks than only wheat straw returning (DTS), yet without improvement in microbial diversity and function. In conclusion, microbial community and function are practical predictors of variations in soil nutrient availability, and pH value in response to different tillage and residue management practices. In particular, our study provides a basis for the development of a sustainable crop residue management system.
AB - Tillage and straw returning are promising practices to improve soil quality, especially because of the unclear controlling effects on microbial communities and functions. A 5-year field experiment in a winter wheat-summer maize cropping system was implemented in the North China Plain to address this research gap. Management practices were deep tillage, rotary tillage, and no-tillage, each with either wheat only or both wheat and maize straw returning. Shotgun metagenomic sequencing was performed to investigate the microbial community, diversity, co-occurrence network, and function in the topsoil (0–20 cm). The associations between soil physiochemical properties and microbial community characteristics were also evaluated. Rotary tillage with only wheat straw returning (RTS) significantly increased Shannon's diversity index by 0.24%–1.71% compared to other treatments. No-tillage with only wheat straw returning (NTS) showed the most stable microbial network with the highest betweenness centrality (199.09), average path distance (2.31), and modularity (0.50). NTS had the highest relative abundance of microbial carbon (C), nitrogen (N) metabolisms, and C fixation pathways. Among deep tillage practices, both wheat and maize straw returning (DTD) were more beneficial to the stability of microbial networks than only wheat straw returning (DTS), yet without improvement in microbial diversity and function. In conclusion, microbial community and function are practical predictors of variations in soil nutrient availability, and pH value in response to different tillage and residue management practices. In particular, our study provides a basis for the development of a sustainable crop residue management system.
KW - microbial community
KW - microbial function
KW - microbial network
KW - straw returning
KW - tillage practice
UR - http://www.scopus.com/inward/record.url?scp=85204799766&partnerID=8YFLogxK
U2 - 10.1002/ldr.5301
DO - 10.1002/ldr.5301
M3 - Article
AN - SCOPUS:85204799766
JO - Land Degradation and Development
JF - Land Degradation and Development
SN - 1085-3278
ER -