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Temporal shifts in the explanatory power and relative importance of litter traits in regulating litter decomposition

文献类型：期刊论文

作者Sun, Zhaolin3; Tian, Peng3; Zhao, Xuechao3,4; Wang, Yanping5; Wang, Shunzhong6; Fang, Xiangmin7; Wang, Qingkui3; Liu, Shengen2
刊名FOREST ECOSYSTEMS
出版日期2022
卷号9
关键词Decomposition model Decomposition stage Litter decay Litter physical traits Litter quality Plant functional type
ISSN号2095-6355
DOI10.1016/j.fecs.2022.100072
文献子类Article
英文摘要Background: Litter traits critically affect litter decomposition from local to global scales. However, our under-standing of the temporal dynamics of litter trait-decomposition linkages, especially their dependence on plant functional type remains limited.Methods: We decomposed the leaf litter of 203 tree species that belong to two different functional types (decid-uous and evergreen) for 2 years in a subtropical forest in China. The Weibull residence model was used to describe the different stages of litter decomposition by calculating the time to 10%, 25% and 50% mass loss (Weibull t1/10, t1/4, and t1/2 respectively) and litter mean residence time (Weibull MRT). The resulting model parameters were used to explore the control of litter traits (e.g., N, P, condensed tannins and tensile strength) over leaf litter decomposition across different decomposition stages.Results: The litter traits we measured had lower explanatory power for the early stages (Weibull t1/10 and t1/4) than for the later stages (Weibull t1/2and MRT) of decomposition. The relative importance of different types of litter traits in influencing decomposition changed dramatically during decomposition, with physical traits exerting predominant control for the stages of Weibull t1/10 and MRT and nutrient-related traits for the stages of Weibull t1/4, and t1/2. Moreover, we found that litter decomposition of the early three stages (Weibull t1/10, t1/4, and t1/2) of the two functional types was controlled by different types of litter traits; that is, the litter decom-position rates of deciduous species were predominately controlled by nutrient-related traits, while the litter decomposition rates of evergreen species were mainly controlled by carbon-related traits. Conclusions: This study suggests that litter trait-decomposition linkages vary with decomposition stages and are strongly mediated by plant functional type, highlighting the necessity to consider their temporal dynamics and plant functional types for improving predictions of litter decomposition.
学科主题Forestry
出版地BEIJING
电子版国际标准刊号2197-5620
WOS关键词FUNCTIONAL TRAITS ; LEAF STRUCTURE ; PLANT TRAITS ; SOIL FAUNA ; QUALITY ; DYNAMICS ; FOREST ; SPECTRUM ; RATES ; TOUGHNESS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000889496100001
出版者KEAI PUBLISHING LTD
资助机构National Natural Science Foundation of China ; [31830015] ; [32171752]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28957]  
专题中科院北方资源植物重点实验室
作者单位1.China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443000, Peoples R China
2.Jiangxi Agr Univ, Coll Forestry, Nanchang 330032, Peoples R China
3.Anhui Agr Univ, Sch Forestry & Landscape Architecture, Hefei 230036, Peoples R China
4.Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Huitong Expt Stn Forest Ecol, Shenyang 110016, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Shandong Agr Univ, Coll Forestry, Taishan Forest Ecosyst Res Stn, Tai An 271018, Peoples R China
7.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Zhaolin,Tian, Peng,Zhao, Xuechao,et al. Temporal shifts in the explanatory power and relative importance of litter traits in regulating litter decomposition[J]. FOREST ECOSYSTEMS,2022,9.
APA Sun, Zhaolin.,Tian, Peng.,Zhao, Xuechao.,Wang, Yanping.,Wang, Shunzhong.,...&Liu, Shengen.(2022).Temporal shifts in the explanatory power and relative importance of litter traits in regulating litter decomposition.FOREST ECOSYSTEMS,9.
MLA Sun, Zhaolin,et al."Temporal shifts in the explanatory power and relative importance of litter traits in regulating litter decomposition".FOREST ECOSYSTEMS 9(2022).

入库方式： OAI收割

来源：植物研究所

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