Divergent responses of soil plant-derived and microbial-derived C to phosphorus input in a Chinese fir plantation
文献类型：期刊论文
| 作者 | Wang, Chenying3; Xu, Qiuyue3; Xia, Yun2,3,4; Luo, Song3; Wang, Jinsong1; Yang, Liuming2,3,4; Yang, Zhijie2,3,4; Yang, Yusheng2,3,4; Fan, Yuexin2,3,4 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 461页码:117489 |
| 关键词 | Phosphorus addition Lignin phenols Amino sugars Enzyme activity Mycelium exclusion |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/j.geoderma.2025.117489 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Plant-derived and microbial-derived carbon (C) are key components of soil organic C (SOC), and their responses to phosphorus (P) availability and root-derived C, govern SOC dynamics, thereby influencing SOC fate. However, in P-limited regions, how P input affects SOC and its components and underlying mechanisms remain unclear. To address this, we conducted a P addition experiment (50 kg P ha- 1 yr- 1) in a subtropical Chinese fir (Cunninghamia lanceolata) plantation, incorporating root and mycelium exclusion treatments. We investigated lignin phenols (biomarker for plant-derived C), amino sugars (biomarker for microbial-derived C), soil properties, microbial biomass, and extracellular enzyme activity. We found that 5 -years of P addition significantly decreased lignin phenols. This was due to reduced belowground C allocation and enhanced lignin decomposition (e.g., V- and S-type monomers). In contrast, P addition increased amino sugars by suppressing their enzymatic degradation and promoting conversion of plant-derived C to microbial derived C. In addition, root and hyphal exclusion negated the P-induced lignin decomposition, but did not affect amino sugar accumulation. This suggests that plant-derived C is greater sensitivity to P addition and stronger dependence on root-microbe interactions compared to microbial-derived C. These findings indicate that P addition alters SOC sources by reducing plant-derived C and increasing microbial-derived C, potentially enhancing SOC stability. This study elucidated how P availability regulates SOC and its component's dynamics in P-limited ecosystems, providing mechanistic insights into the effects of P inputs on SOC storage, offering a theoretical basis for regional soil C management. |
| URL标识 | 查看原文 |
| WOS关键词 | AMINO-SUGARS ; BIOMASS PHOSPHORUS ; EXTRACTION METHOD ; MURAMIC ACID ; CARBON ; NITROGEN ; LIGNIN ; LIMITATION ; DECOMPOSITION ; BIOMARKERS |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001565605500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/216052]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Fan, Yuexin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Fujian Prov Key Lab Plant Ecophysiol, Minist Educ, Fuzhou 350117, Peoples R China; 3.Fujian Normal Univ, Sch Geog Sci, Fuzhou 350117, Peoples R China; 4.Fujian Normal Univ, Inst Geog, Fuzhou 350117, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Chenying,Xu, Qiuyue,Xia, Yun,et al. Divergent responses of soil plant-derived and microbial-derived C to phosphorus input in a Chinese fir plantation[J]. GEODERMA,2025,461:117489. |
| APA | Wang, Chenying.,Xu, Qiuyue.,Xia, Yun.,Luo, Song.,Wang, Jinsong.,...&Fan, Yuexin.(2025).Divergent responses of soil plant-derived and microbial-derived C to phosphorus input in a Chinese fir plantation.GEODERMA,461,117489. |
| MLA | Wang, Chenying,et al."Divergent responses of soil plant-derived and microbial-derived C to phosphorus input in a Chinese fir plantation".GEODERMA 461(2025):117489. |
入库方式： OAI收割
来源：地理科学与资源研究所
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