Shifts in microbial biomass and community composition in subtropical paddy soils under a gradient of manure amendment
文献类型：期刊论文
| 作者 | Ma, Xiaoyan1,2; Liu, Ming1; Li, Zhongpei1,2 |
| 刊名 | Biology and fertility of soils
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 52期号:6页码:775-787 |
| ISSN号 | 0178-2762 |
| 关键词 | Manure amendment Nutrient accumulation Nutrient stoichiometry Microbial community |
| DOI | 10.1007/s00374-016-1118-4 |
| 通讯作者 | Li, zhongpei(zhpli@issas.ac.cn) |
| 英文摘要 | To study the responses of microbial community composition to excessive manure amendment and their relationships with soil nutrients, a pot experiment was conducted using soils of different fertilities under a gradient (0-44.8 mg ha(-1)) of manure amendment. after four rice-growing seasons, the soil nutrients were enriched by intense manure amendment, especially the phosphorus (p) content, and the p-related nutrient stoichiometry was altered. the total p content increased by 1.51 and 1.09 g kg(-1) with the highest manure input in fertile and infertile soils, respectively. for the two soils, both the carbon (c)-to-p and nitrogen (n)-to-p ratios decreased up to around 55 and 4, respectively, by increasing amendment rates from 0 to 44.8 mg ha(-1). the microbial biomass c (mbc) in the infertile soil increased steadily from 330.73 to 445.93 mg kg(-1) under amendment rates increasing from 2.8 to 44.8 mg ha(-1). in fertile soil, mbc increased significantly from 590.46 to 784.54 mg kg(-1) and slowly to 875.56 mg kg(-1) before remaining constant. the metabolic quotient (qco(2)) increased about 2.5-fold when the amendment rate increased from 11.2 to 44.8 mg ha(-1). the fungal-to-bacterial ratio doubled with the highest manure amendment rate at the expense of actinomycetes, and the community composition shifted at amendment rates a parts per thousand yen22.4 mg ha(-1). changes in the composition of microbial communities were associated with the increase in the soil p content and reduced c-to-p and n-to-p ratios. in conclusion, an imbalance in p accumulation with excessive manure amendment may affect the functions of the soil ecosystem by reshaping the soil microbial communities. |
| WOS关键词 | LONG-TERM FERTILIZATION ; BACTERIAL COMMUNITY ; LAND-USE ; PHOSPHORUS FERTILIZATION ; ECOLOGICAL STOICHIOMETRY ; AGRICULTURAL SYSTEMS ; CARBON SEQUESTRATION ; NITROGEN ; GRASSLANDS ; DIVERSITY |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000380126600003 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375137 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Zhongpei |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, 71 East Beijing Rd, Nanjing 210008, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Xiaoyan,Liu, Ming,Li, Zhongpei. Shifts in microbial biomass and community composition in subtropical paddy soils under a gradient of manure amendment[J]. Biology and fertility of soils,2016,52(6):775-787. |
| APA | Ma, Xiaoyan,Liu, Ming,&Li, Zhongpei.(2016).Shifts in microbial biomass and community composition in subtropical paddy soils under a gradient of manure amendment.Biology and fertility of soils,52(6),775-787. |
| MLA | Ma, Xiaoyan,et al."Shifts in microbial biomass and community composition in subtropical paddy soils under a gradient of manure amendment".Biology and fertility of soils 52.6(2016):775-787. |
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来源：中国科学院大学
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