干旱区生态环境知识资源中心(Arid): Grazing and Climate Effects on Soil Chemical Properties and Bacterial Community in a Semiarid Area, Iran

Arid

DOI	10.1134/S1064229321040165
	Grazing and Climate Effects on Soil Chemical Properties and Bacterial Community in a Semiarid Area, Iran
	Teimouri, M.; Mohammadi, P.; Dick, W. A.; Asgarani, E.
通讯作者	Mohammadi, P (corresponding author), Alzahra Univ, Fac Biol Sci, Dept Microbiol, Tehran, Iran.
来源期刊	EURASIAN SOIL SCIENCE
ISSN	1064-2293
EISSN	1556-195X
出版年	2021
卷号	54 期号:4 页码:541-550
英文摘要	The microbial population of soil is diverse and is regulated by different soil properties. This study aimed to determine the impact of climate and grazing on soil community composition in two semiarid areas, Kerman province, Iran. Soil samples were taken from four zones which were either cold or warm and either grazed by cattle or not grazed. Soil chemical analyses were determined by standard methods and the bacterial community by DNA extraction from soil followed by next generation sequencing of the 16S rRNA gene. Soil at cold areas had higher moisture, organic carbon, total nitrogen, available phosphorous and exchangeable potassium concentrations than warm sites. The abundance of Proteobacteria (28.3% +/- 1.0) and Actinobacteria (44.6% +/- 1.1) was highest at the cold-grazed and warm-grazed zones, respectively, which account for similar to 70% of all OTUs. Greater richness and evenness of bacteria at the cold areas, compared to the warm areas, was also observed and is attributed to more vegetation cover and soil organic matter, nutrient availability and moisture. There was no significant difference of chemical soil properties between the grazed and not grazed sites. However, significant differences were observed in bacterial diversity between the grazed and not grazed sites, suggesting that bacteria respond much more rapidly to grazing than to soil chemical properties. According to the Chao1 and J values, the least richness and the highest evenness belonged to the warm-grazed zone, indicating grazing had a greater effect at the warm areas, compared to the cold areas. In conclusion, change in community composition at managed (i.e. grazed versus not grazed) semiarid sites, estimated by next generation sequencing, precede detectable changes in soil chemical properties, thereby providing an early sign of change in soil quality.
英文关键词	16S rRNA Diversity Grazing Illumina Semiarid
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000645649400008
WOS关键词	KHABR NATIONAL-PARK ; MICROBIAL DIVERSITY ; ORGANIC-MATTER ; RIBOSOMAL-RNA ; INTENSITY ; BIODIVERSITY ; DEPENDENCE ; GRASSLAND ; IMPACTS ; DESERT
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350190
作者单位	[Teimouri, M.; Mohammadi, P.] Alzahra Univ, Fac Biol Sci, Dept Microbiol, Tehran, Iran; [Dick, W. A.] Ohio State Univ, Sch Environm & Nat Resources, Wooster, OH USA; [Asgarani, E.] Alzahra Univ, Fac Biol Sci, Dept Biotechnol, Tehran, Iran
推荐引用方式 GB/T 7714	Teimouri, M.,Mohammadi, P.,Dick, W. A.,et al. Grazing and Climate Effects on Soil Chemical Properties and Bacterial Community in a Semiarid Area, Iran[J],2021,54(4):541-550.
APA	Teimouri, M.,Mohammadi, P.,Dick, W. A.,&Asgarani, E..(2021).Grazing and Climate Effects on Soil Chemical Properties and Bacterial Community in a Semiarid Area, Iran.EURASIAN SOIL SCIENCE,54(4),541-550.
MLA	Teimouri, M.,et al."Grazing and Climate Effects on Soil Chemical Properties and Bacterial Community in a Semiarid Area, Iran".EURASIAN SOIL SCIENCE 54.4(2021):541-550.