Summary We investigated a nature-based solution (NbS) via incorporating biocrust into alfalfa-maize intercropping system to test carbon sequestration in seriously eroded agricultural soils. Field investigation showed that the NbS (moss-dominated biocrust + intercropping) massively lowered surface soil erosion by 94.5% and soil carbon (C) and nitrogen (N) loss by 94.7 and 96.8% respectively, while promoting rainwater interception by 82.2% relative to bare land (CK). There generally existed positive interactions between biocrust and cropping in the integrated standing biodiversity system. Enhanced plant biomass input into soils substantially promoted soil fungal community diversity and abundance under NbS (p < 0.05). This enabled NbS to evidently improve soil macroaggregate proportion and mean weight diameter. Critically, topsoil carbon storage was increased by 2.5 and 10.7%, compared with CK and pure intercropping (p < 0.05). Conclusively, the standing diversity under such NbS fostered soil C sequestration via water interception and plant-soil-microbe interactions in degraded agricultural soils.
Moss-dominated biocrust-based biodiversity enhances carbon sequestration via water interception and plant-soil-microbe interactions
Wei Wang,Mengyang Li,R. Zhou,F. Mo,Bao‐Zhong Wang,Li Zhu,Hong-Yan Tao,Ying’an Zhu,Wen-Li Wang,Ze‐Ying Zhao,Y. Xiong
Published 2022 in iScience
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- Publication year
2022
- Venue
iScience
- Publication date
2022-12-01
- Fields of study
Agricultural and Food Sciences, Medicine, Environmental Science
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Semantic Scholar, PubMed
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