Native soil labile organic matter influences soil priming effects
文献类型：期刊论文
| 作者 | Zhou, Jing2,3; Qiao, Na4; Zhu, Tongbin5; Pang, Rui2,3; Sun, Yu2,3; Zhou, Xiaoqi1; Xu, Xingliang2 |
| 刊名 | APPLIED SOIL ECOLOGY
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 182页码:10 |
| ISSN号 | 0929-1393 |
| 关键词 | Native labile organic matter Soil microorganisms Priming effect 13 C -glucose |
| DOI | 10.1016/j.apsoil.2022.104732 |
| 通讯作者 | Qiao, Na(qiaona@cashq.ac.cn) |
| 英文摘要 | The input of exogenous labile carbon into the soil is an important factor affecting soil organic carbon dynamics by accelerating or inhibiting the decomposition of native soil organic matter, known as the priming effect. Many factors affect the priming effect, including biological factors, such as soil microorganisms, plants, and soil fauna, as well as, abiotic factors, such as soil structure, nutrients, water, and temperature. Although the mechanisms responsible for the occurrence and maintenance of priming effects are well-understood, most previous studies only considered the impact of input of exogenous available organic carbon on priming effects. How the native soil labile organic matter (LOM) affects the direction and magnitude of the priming effect remains unclear. In this study, mineral layer soil was collected from a Chinese fir plantation in Qianyanzhou, Jiangxi. Native LOM concentrations in the soil were adjusted using vacuum soil solution extraction. The priming effect was quantified by adding 13C-labeled glucose at two different concentrations. Changes in the concentration of native LOM affected the native microbial biomass in the soil, in turn altering the response of soil microorganisms to exog-enous available organic carbon. In the absence of glucose, soil with a high concentration of native LOM contained high levels of soil microbial biomass carbon. After adding glucose, soil microbial biomass increased, which promoted the decomposition of soil organic carbon and produced a positive priming effect. At two glucose addition levels, soil with the native LOM concentration of 50 % showed a significantly lower priming effect with values of 1.00 +/- 3.10 and 0.69 +/- 2.99 mg C g-1 SOC at 5 % and 20 % MBC, respectively. The priming effects did not significantly differ between the other native available organic matter concentration treatments. Thus, the influence of the native LOM concentration on the soil priming effect may be much more complex than previously considered. |
| WOS关键词 | MICROBIAL BIOMASS ; NITROGEN LIMITATION ; ENZYME-ACTIVITY ; CARBON ; FOREST ; DECOMPOSITION ; MECHANISMS ; COMMUNITY ; STOICHIOMETRY ; RESPIRATION |
| 资助项目 | National Natural Science Founda-tion of China ; [41830646] ; [41601318] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000895409700011 |
| 资助机构 | National Natural Science Founda-tion of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188387]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Qiao, Na |
| 作者单位 | 1.East China Normal Univ, Ctr Global Change & Ecol Forecasting, Sch Ecol & Environm Sci, Zhejiang Tiantong Forest Ecosyst Natl Observat & R, Shanghai 200241, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Yanqi Lake, Beijing 101408, Peoples R China 4.Chinese Acad Sci, China Natl Comm MAB, W52 Sanlihe Rd, Beijing 100864, Peoples R China 5.Chinese Acad Geol Sci, Inst Karst Geol, Karst Dynam Lab, MLR & Guangxi, Guilin 541004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Jing,Qiao, Na,Zhu, Tongbin,et al. Native soil labile organic matter influences soil priming effects[J]. APPLIED SOIL ECOLOGY,2023,182:10. |
| APA | Zhou, Jing.,Qiao, Na.,Zhu, Tongbin.,Pang, Rui.,Sun, Yu.,...&Xu, Xingliang.(2023).Native soil labile organic matter influences soil priming effects.APPLIED SOIL ECOLOGY,182,10. |
| MLA | Zhou, Jing,et al."Native soil labile organic matter influences soil priming effects".APPLIED SOIL ECOLOGY 182(2023):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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