Changes of anaerobic to aerobic conditions but not of crop type induced bulk soil microbial community variation in the initial conversion of paddy soils to drained soils
Dai, XQ; Yuan, Y; Wang, HM
2016
Source PublicationCATENA
ISSN0341-8162
Volume147Pages:578-585
AbstractSoil microorganisms are the main drivers of all of the biochemical processes that occur in soils. Land-use conversion, a common occurrence driven by market economy, changes plant species and the associated management strategies, thus significantly influences soil microbial communities. However, few studies have been conducted to disentangle the effect of the alteration of plant species from that of soil environment during the initial years of conversion. In this study, the effect of land-use conversion from double rice cropping (RR) to maize-maize (MM) and soybean-peanut (SP) double cropping systems on soil physical and chemical properties and microbial communities was studied two years after the conversion in southern China. The results showed that land use conversion significantly changed the soil properties, microbial communities and microbial biomass. The soil water content decreased significantly by 263%, and the pH decreased by 0.50 and 0.52 for MM and SP, respectively, compared with RR. Soil inorganic N also decreased significantly by 55% after the conversion to drained fields. The total phospholipid fatty acids (PLFAs), and bacterial, G+, G- and actinomycetic PLFAs decreased significantly after the conversion. No significant differences were found in the soil properties, microbial communities and microbial biomass between the converted MM and SP. Our results indicated that the changes of anaerobic to aerobic conditions, rather than of crop type, induced the variations in the soil properties and microbial communities during the initial years after conversion from paddy soils to drained soils. In particular, soil pH was the key factor that regulated the variations in the soil microbial communities after conversion. (C) 2016 Elsevier B.V. All rights reserved.
SubtypeJournal
KeywordDouble cropping system Land use conversion Phospholipid fatty acid (PLFA) Red soil Soil properties Subtropical China
Subject AreaGeology ; Agriculture ; Water Resources
WOS Subject ExtendedGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS KeywordLAND-USE CHANGE ; FATTY-ACID ANALYSIS ; ORGANIC-CARBON ; RICE ; CHINA ; FERTILIZATION ; CULTIVATION ; DIVERSITY ; BACTERIAL ; SHIFTS
Indexed BySCI
Language英语
WOS IDWOS:000385598800056
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44154
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Dai, XQ,Yuan, Y,Wang, HM. Changes of anaerobic to aerobic conditions but not of crop type induced bulk soil microbial community variation in the initial conversion of paddy soils to drained soils[J]. CATENA,2016,147:578-585.
APA Dai, XQ,Yuan, Y,&Wang, HM.(2016).Changes of anaerobic to aerobic conditions but not of crop type induced bulk soil microbial community variation in the initial conversion of paddy soils to drained soils.CATENA,147,578-585.
MLA Dai, XQ,et al."Changes of anaerobic to aerobic conditions but not of crop type induced bulk soil microbial community variation in the initial conversion of paddy soils to drained soils".CATENA 147(2016):578-585.
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