Large-scale homogenization of soil bacterial communities in response to agricultural practices in paddy fields, China

doi:10.1016/j.soilbio.2021.108490

KIB OpenIR

	Large-scale homogenization of soil bacterial communities in response to agricultural practices in paddy fields, China
	Wang,Hang ; Liu,Shengen ; Li,Hongyi ; Tao,Xinhua ; Wang,Haocai ; Qi,Jinfeng ; Zhang,Zhijian
	2022
发表期刊	SOIL BIOLOGY & BIOCHEMISTRY
ISSN	0038-0717
卷号	164 页码:108490
摘要	The transformation of natural habitats into cropland is a major issue in ecological conservation. Of particular concern is the large-scale biotic homogenization (reduced beta-diversity) of soil microbial communities. Paddy fields represent the largest anthropogenic ecosystem in the world; however, bacterial homogenization and reduced biodiversity in paddy fields caused by intensive modern agricultural practices have yet to be explored. Here, samples were collected from 257 sites in four typical rice-growing regions across a 4,000-km transect in China, including both paddy fields and adjacent natural habitats. These four regions follow a unique gradient of rice cultivation management, from modern mechanical to traditional manual practices. Distance-decay patterns of bacterial communities in paddy fields revealed reduced beta-diversity compared to surrounding natural habitats. Modern rice farming practices (plowing with machines) caused stronger homogenization of soil bacterial communities than traditional farming (plowing by hand). Among the four paddy regions, plowing by hand retained the highest soil bacterial beta-diversity. Moreover, a significant inverse correlation was observed between bacterial beta-diversity and the agricultural mechanization level. Among multiple environmental factors, dramatic spatial homogenization of soil physicochemical properties, particularly soil nutrient contents, and reduced dispersal limitation caused by modern farming activities both strongly predict a reduction of bacterial beta-diversity in modern paddy fields.
关键词	Land use Bacterial community beta-diversity Paddy field Spatial scale dependence GRASSLANDS DIVERSITY PATTERNS BETA BIOGEOGRAPHY CONVERSION FOREST
DOI	10.1016/j.soilbio.2021.108490
WOS记录号	WOS:000720850600006
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73036
专题	中国科学院昆明植物研究所
作者单位	1.Zhejiang Univ, Coll Environm & Resource Sci, 866 Yuhangtang Ave, Hangzhou 310058, Peoples R China 2.Southwest Forestry Univ, Natl Plateau Wetlands Res Ctr, Yunnan Key Lab Plateau Wetland Conservat Restorat, Kunming 650224, Yunnan, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China 4.China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443000, Peoples R China 5.Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Huitong Expt Stn Forest Ecol, Shenyang 110164, Peoples R China 6.Shanghai Personal Biotechnol Co Ltd, Shanghai 200231, Peoples R China 7.Chinese Acad Sci, Kunming Inst Bot, Dept Econ Plants & Biotechnol, Yunnan Key Lab Wild Plant Resources, Kunming 650201, Yunnan, Peoples R China 8.Zhejiang Univ, China Acad West Reg Dev, Hangzhou 310058, Peoples R China
推荐引用方式 GB/T 7714	Wang,Hang,Liu,Shengen,Li,Hongyi,et al. Large-scale homogenization of soil bacterial communities in response to agricultural practices in paddy fields, China[J]. SOIL BIOLOGY & BIOCHEMISTRY,2022,164:108490.
APA	Wang,Hang.,Liu,Shengen.,Li,Hongyi.,Tao,Xinhua.,Wang,Haocai.,...&Zhang,Zhijian.(2022).Large-scale homogenization of soil bacterial communities in response to agricultural practices in paddy fields, China.SOIL BIOLOGY & BIOCHEMISTRY,164,108490.
MLA	Wang,Hang,et al."Large-scale homogenization of soil bacterial communities in response to agricultural practices in paddy fields, China".SOIL BIOLOGY & BIOCHEMISTRY 164(2022):108490.