Effects of straw amendment and moisture on microbial communities in Chinese fluvo-aquic soil
文献类型：期刊论文
| 作者 | Chen, Lin1,2; Zhang, Jiabao1,3; Zhao, Bingzi1; Yan, Pei1; Zhou, Guixiang1; Xin, Xiuli1 |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
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| 出版日期 | 2014-11-01 |
| 卷号 | 14期号:11页码:1829-1840 |
| 关键词 | Eukaryotic community Microorganisms Phospholipid fatty acids Pyrosequencing |
| ISSN号 | 1439-0108 |
| 产权排序 | [Chen, Lin; Zhang, Jiabao; Zhao, Bingzi; Yan, Pei; Zhou, Guixiang; Xin, Xiuli] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China; [Chen, Lin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Zhang, Jiabao] Henan Agr Univ, Collaborat Innovat Ctr Food Crops Henan, Zhengzhou 450002, Peoples R China |
| 通讯作者 | Zhang, JB (reprint author), Henan Agr Univ, Collaborat Innovat Ctr Food Crops Henan, Zhengzhou 450002, Peoples R China. jbzhang@issas.ac.cn |
| 中文摘要 | Returning crop straw into fields is a typical agricultural practice to resolve an oversupply of straw and improve soil fertility. Soil microorganisms, especially eukaryotic microorganisms, play a critical role in straw decomposition. To date, microbial communities in response to straw amendment at different moisture levels in Chinese fluvo-aquic soil are poorly understood. The aim of this study was to explore the effects of straw amendment and moisture on microbial communities in Chinese fluvo-aquic soil. Two soils (one was applied with organic manure, and the other was not applied with any fertilizer) from a long-term field experiment in the North China Plain were collected. Soils with and without straw amendment at 25 and 55 % of the average water-holding capacities of the two soils were incubated at 25 A degrees C for 80 days. All treatments were sampled 20 and 80 days after the start of incubation. Microbial biomass and community structure were analyzed by phospholipid fatty acids (PLFA) assay, and the eukaryotic diversity and community composition were assessed via barcoded pyrosequencing of the 18S ribosomal RNA (rRNA) gene amplicons. PLFA analysis showed that straw amendment increased the biomass of Gram-positive bacteria, Gram-negative bacteria, actinobacteria, and fungi and shifted microbial community structure. The varied straw availability resulted in a large variation in microbial community structure. In the presence of straw, actinobacterial and fungal biomass both decreased under high moisture content. 18S rRNA gene pyrosequencing indicated that straw amendment decreased eukaryotic diversity and richness and probably restructured the eukaryotic community. Under identical moisture content, long-term organic manure-fertilized soil had higher eukaryotic diversity and richness than the unfertilized soil. In the amended soils under high moisture content, the relative abundance of dominant fungal taxa (Dikarya subkingdom, Ascomycota phylum, and Pezizomycotina subphylum) decreased. Straw amendment increases microbial biomass, shifts microbial community structure, and decreases eukaryotic diversity and richness. High moisture content probably has a negative effect on fungal growth in the amended soils. In conclusion, microbial communities in Chinese fluvo-aquic soil are significantly affected by straw amendment at different moisture levels. |
| 英文摘要 | Returning crop straw into fields is a typical agricultural practice to resolve an oversupply of straw and improve soil fertility. Soil microorganisms, especially eukaryotic microorganisms, play a critical role in straw decomposition. To date, microbial communities in response to straw amendment at different moisture levels in Chinese fluvo-aquic soil are poorly understood. The aim of this study was to explore the effects of straw amendment and moisture on microbial communities in Chinese fluvo-aquic soil. |
| 学科主题 | Geosciences, Multidisciplinary; Soil Science |
| 研究领域[WOS] | Geology ; Agriculture |
| 关键词[WOS] | ENZYME-ACTIVITIES ; CROP RESIDUES ; RICE STRAW ; EUKARYOTIC COMMUNITIES ; CARBON MINERALIZATION ; BACTERIAL COMMUNITIES ; PHYLOGENETIC PROFILE ; FUNGAL COMMUNITIES ; WHEAT-STRAW ; ARABLE SOIL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000343927600006 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/8803]  |
| 专题 | 烟台海岸带研究所_中科院烟台海岸带研究所知识产出 |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 3.Henan Agr Univ, Collaborat Innovat Ctr Food Crops Henan, Zhengzhou 450002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Lin,Zhang, Jiabao,Zhao, Bingzi,et al. Effects of straw amendment and moisture on microbial communities in Chinese fluvo-aquic soil[J]. JOURNAL OF SOILS AND SEDIMENTS,2014,14(11):1829-1840. |
| APA | Chen, Lin,Zhang, Jiabao,Zhao, Bingzi,Yan, Pei,Zhou, Guixiang,&Xin, Xiuli.(2014).Effects of straw amendment and moisture on microbial communities in Chinese fluvo-aquic soil.JOURNAL OF SOILS AND SEDIMENTS,14(11),1829-1840. |
| MLA | Chen, Lin,et al."Effects of straw amendment and moisture on microbial communities in Chinese fluvo-aquic soil".JOURNAL OF SOILS AND SEDIMENTS 14.11(2014):1829-1840. |
入库方式： OAI收割
来源：烟台海岸带研究所
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