Effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil

Abstract The sandy soil leaks water and fertilizer, and the ecological degradation is serious. The structural characteristics of soft rock and sandy soil are complementary, and the improvement of sandy soil by adding soft rock is of great significance to improve soil fertility, restore biodiversity,...

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Autores principales:	Wan-ying Li, Zhen Guo, Juan Li, Ji-chang Han
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b8103d55d6434b44842247905f59e685
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spelling	oai:doaj.org-article:b8103d55d6434b44842247905f59e6852021-12-02T11:37:18ZEffects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil10.1038/s41598-021-84177-x2045-2322https://doaj.org/article/b8103d55d6434b44842247905f59e6852021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84177-xhttps://doaj.org/toc/2045-2322Abstract The sandy soil leaks water and fertilizer, and the ecological degradation is serious. The structural characteristics of soft rock and sandy soil are complementary, and the improvement of sandy soil by adding soft rock is of great significance to improve soil fertility, restore biodiversity, and maintain sustainable development of the Mu Us sandy land region. In this study, total organic carbon (TOC), particulate organic carbon (POC), dissolved organic carbon (DOC), easily oxidized organic carbon (ROC), microbial biomass carbon (SMBC), bacterial community structure and crop yield were examined using soft rock:sand volume ratios of 0:1 (CK), 1:5 (C1), 1:2 (C2) and 1:1 (C3). Our results indicated that, compared with the CK treatment, TOC (9.66–22.34%), POC (85.65–120.41%) and ROC (114.12–192.31%) noticeably increased in C1, C2 and C3 treatments; SMBC in treatment C3 increased by 42.77%. The three dominant bacteria in the soil (Proteobacteria, Actinobacteria and Chloroflexi), as well as Proteobacteria abundance, greatly declined in the treatments with the addition of soft rock. Pseudarthrobacter was the dominant Genus in all treatments, having an abundance between 11.83 and 19.33%. Bacterial diversity, richness and evenness indices all recorded an increase under the treatments. POC, TOC and SMBC recorded the most significant effects on the bacterial community structure. The largest increases in wheat and corn yields were recorded in the C2 treatment (16.05% and 16.30%), followed by the C1 treatment (8.28% and 8.20%, respectively). Our findings indicate that a soft rock:sand ratio between 1:5 and 1:2 recorded the most improvement in the sandy soil environment.Wan-ying LiZhen GuoJuan LiJi-chang HanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wan-ying Li Zhen Guo Juan Li Ji-chang Han Effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil
description	Abstract The sandy soil leaks water and fertilizer, and the ecological degradation is serious. The structural characteristics of soft rock and sandy soil are complementary, and the improvement of sandy soil by adding soft rock is of great significance to improve soil fertility, restore biodiversity, and maintain sustainable development of the Mu Us sandy land region. In this study, total organic carbon (TOC), particulate organic carbon (POC), dissolved organic carbon (DOC), easily oxidized organic carbon (ROC), microbial biomass carbon (SMBC), bacterial community structure and crop yield were examined using soft rock:sand volume ratios of 0:1 (CK), 1:5 (C1), 1:2 (C2) and 1:1 (C3). Our results indicated that, compared with the CK treatment, TOC (9.66–22.34%), POC (85.65–120.41%) and ROC (114.12–192.31%) noticeably increased in C1, C2 and C3 treatments; SMBC in treatment C3 increased by 42.77%. The three dominant bacteria in the soil (Proteobacteria, Actinobacteria and Chloroflexi), as well as Proteobacteria abundance, greatly declined in the treatments with the addition of soft rock. Pseudarthrobacter was the dominant Genus in all treatments, having an abundance between 11.83 and 19.33%. Bacterial diversity, richness and evenness indices all recorded an increase under the treatments. POC, TOC and SMBC recorded the most significant effects on the bacterial community structure. The largest increases in wheat and corn yields were recorded in the C2 treatment (16.05% and 16.30%), followed by the C1 treatment (8.28% and 8.20%, respectively). Our findings indicate that a soft rock:sand ratio between 1:5 and 1:2 recorded the most improvement in the sandy soil environment.
format	article
author	Wan-ying Li Zhen Guo Juan Li Ji-chang Han
author_facet	Wan-ying Li Zhen Guo Juan Li Ji-chang Han
author_sort	Wan-ying Li
title	Effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil
title_short	Effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil
title_full	Effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil
title_fullStr	Effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil
title_full_unstemmed	Effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil
title_sort	effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b8103d55d6434b44842247905f59e685
work_keys_str_mv	AT wanyingli effectsofdifferentproportionsofsoftrockadditionsonorganiccarbonpoolandbacterialcommunitystructureofsandysoil AT zhenguo effectsofdifferentproportionsofsoftrockadditionsonorganiccarbonpoolandbacterialcommunitystructureofsandysoil AT juanli effectsofdifferentproportionsofsoftrockadditionsonorganiccarbonpoolandbacterialcommunitystructureofsandysoil AT jichanghan effectsofdifferentproportionsofsoftrockadditionsonorganiccarbonpoolandbacterialcommunitystructureofsandysoil
_version_	1718395783501316096

Effects of different proportions of soft rock additions on organic carbon pool and bacterial community structure of sandy soil

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