Root and leaf decomposition become decoupled overtime: implications for below- and above-ground relationships
文献类型：期刊论文
| 作者 | Ma, Chengen1,2,3; Xiong, Yanmei4; Li, Le1,2,3; Guo, Dali1,2 |
| 刊名 | Functional ecology
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 30期号:7页码:1239-1246 |
| 关键词 | Absorptive fine roots Carbon cycling Fine root decomposition Litter chemistry Plant functional traits Plant-soil feedback Whole-plant economics spectrum Woody plants |
| ISSN号 | 0269-8463 |
| DOI | 10.1111/1365-2435.12619 |
| 通讯作者 | Guo, dali(guodl@igsnrr.ac.cn) |
| 英文摘要 | Studies elucidating patterns and mechanisms of decomposition are moving from a leaf-centred view towards a whole-plant perspective, in which root and leaf decomposition differs among species, yet this prediction has so far received mixed empirical support. here, we examined the rates and temporal dynamics of decomposition of absorptive fine roots (the distal two root-branch orders) and leaf litter by measuring mass loss across 10 subtropical and temperate tree species, and co2 efflux across 18 tree species in a 15-month laboratory incubation experiment. eight of 12 initial chemical traits were positively correlated between roots and leaf litter (pearson's r range of 048-082). however, mass loss and respiration rates between roots and leaf litter were correlated only in the first 3months, but unrelated in the subsequent 12months. this was due to root decomposition rates slowing down after the first 3months. the disparity in decomposition rates between roots and leaf litter was mainly due to the higher chemical recalcitrance of roots and suggests that roots and leaf litter need to be considered separately when evaluating their role in plant-soil feedbacks. a better understanding of whole-plant ecological strategies is needed to quantify the impact roots vs. leaves on detrital processes. |
| WOS关键词 | PLANT ECONOMICS SPECTRUM ; LITTER DECOMPOSITION ; CHINESE TEMPERATE ; CARBON FRACTIONS ; FOREST LITTER ; FINE ROOTS ; TRAITS ; SOIL ; COMMUNITIES ; SENSITIVITY |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000379978100023 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374526 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Guo, Dali |
| 作者单位 | 1.Chinese Acad Sci, Ctr Forest Ecosyst Studies, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Qianyanzhou Stn, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Chengen,Xiong, Yanmei,Li, Le,et al. Root and leaf decomposition become decoupled overtime: implications for below- and above-ground relationships[J]. Functional ecology,2016,30(7):1239-1246. |
| APA | Ma, Chengen,Xiong, Yanmei,Li, Le,&Guo, Dali.(2016).Root and leaf decomposition become decoupled overtime: implications for below- and above-ground relationships.Functional ecology,30(7),1239-1246. |
| MLA | Ma, Chengen,et al."Root and leaf decomposition become decoupled overtime: implications for below- and above-ground relationships".Functional ecology 30.7(2016):1239-1246. |
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来源：中国科学院大学
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