Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1111/gcb.17027 |
| Document | Shareable Link |
| Title (Primary) | New perspectives on microbiome and nutrient sequestration in soil aggregates during long-term grazing exclusion |
| Author | Ju, W.; Fang, L.; Shen, G.; Delgado-Baquerizo, M.; Chen, J.; Zhou, G.; Ma, D.; Bing, H.; Liu, L.; Liu, J.; Jin, X.; Guo, L.; Tan, W.; Blagodatskaya, E. |
| Source Titel | Global Change Biology |
| Year | 2024 |
| Department | BOOEK |
| Volume | 30 |
| Issue | 1 |
| Page From | e17027 |
| Language | englisch |
| Topic | T5 Future Landscapes |
| Data and Software links | https://doi.org/10.6084/m9.figshare.24453958 |
| Supplements | https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1111%2Fgcb.17027&file=gcb17027-sup-0001-Supinfo.docx |
| Keywords | carbon sequestration; grasslands; grazing exclusion; microbial communities and functions; nitrogen and phosphorus accumulation; soil aggregates |
| Abstract | Grazing exclusion alters grassland soil aggregation, microbiome composition, and biogeochemical processes. However, the long-term effects of grazing exclusion on the microbial communities and nutrient dynamics within soil aggregates remain unclear. We conducted a 36-year exclusion experiment to investigate how grazing exclusion affects the soil microbial community and the associated soil functions within soil aggregates in a semiarid grassland. Long-term (36 years) grazing exclusion induced a shift in microbial communities, especially in the <2 mm aggregates, from high to low diversity compared to the grazing control. The reduced microbial diversity was accompanied by instability of fungal communities, extended distribution of fungal pathogens to >2 mm aggregates, and reduced carbon (C) sequestration potential thus revealing a negative impact of long-term GE. In contrast, 11–26 years of grazing exclusion greatly increased C sequestration and promoted nutrient cycling in soil aggregates and associated microbial functional genes. Moreover, the environmental characteristics of microhabitats (e.g., soil pH) altered the soil microbiome and strongly contributed to C sequestration. Our findings reveal new evidence from soil microbiology for optimizing grazing exclusion duration to maintain multiple belowground ecosystem functions, providing promising suggestions for climate-smart and resource-efficient grasslands. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28249 |
| Ju, W., Fang, L., Shen, G., Delgado-Baquerizo, M., Chen, J., Zhou, G., Ma, D., Bing, H., Liu, L., Liu, J., Jin, X., Guo, L., Tan, W., Blagodatskaya, E. (2024): New perspectives on microbiome and nutrient sequestration in soil aggregates during long-term grazing exclusion Glob. Change Biol. 30 (1), e17027 10.1111/gcb.17027 |
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