Interactions between leaf litter and soil organic matter on carbon and nitrogen mineralization in six forest litter-soil systems
Xiong, YM; Zeng, H; Xia, HP; Guo, DL
2014
Source PublicationPLANT AND SOIL
ISSN0032-079X
Volume379Issue:01-02Pages:217-229
AbstractLeaf litter decomposes on the surface of soil in natural systems and element transfers between litter and soil are commonly found. However, how litter and soil organic matter (SOM) interact to influence decomposition rate and nitrogen (N) release remains unclear. Leaf litter and mineral soil of top 0-5 cm from six forests were incubated separately, or together with litter on soil surface at 25 A degrees C for 346 days. Litter N remaining and soil respiration rate were repeatedly measured during incubation. Litter carbon (C) and mass losses and mineral N concentrations in litter and soil were measured at the end of incubation. Net N transfer from soil to litter was found in all litters when incubated with soil. Litter incubated with soil lost more C than litter incubated alone after 346 days. For litters with initial C: N ratios lower than 52, net N-min after 346 days was 100 % higher when incubated with soil than when incubated alone. Litter net N-min rate was negatively related to initial C: N ratio when incubated with soil but not when incubated alone. Soil respiration rate and net N-min rate did not differ between soil incubated with litter and soil incubated alone. We conclude that soils may enhance litter decomposition rate by net N transfer from soil to litter. Our results together with studies on litter mixture decomposition suggest that net N transfer between decomposing organic matter with different N status may be common and may significantly influence decomposition and N release. The low net N-min rate during litter decomposition along with the small size of litter N pool compared to soil N pool suggest that SOM rather than decomposing litter is the major contributor to plant mineral N supply.
SubtypeJournal
KeywordLitter decomposition N release N transfer N immobilization Stoichiometry
Subject AreaAgriculture ; Plant Sciences
WOS Subject ExtendedAgronomy ; Plant Sciences ; Soil Science
WOS KeywordMEAN ANNUAL TEMPERATURE ; NET N MINERALIZATION ; NUTRIENT RELEASE ; MASS-LOSS ; DECOMPOSITION ; RATES ; QUALITY ; STOICHIOMETRY ; TRANSLOCATION ; DYNAMICS
Indexed BySCI
Language英语
WOS IDWOS:000335166300016
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44542
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Xiong, YM,Zeng, H,Xia, HP,et al. Interactions between leaf litter and soil organic matter on carbon and nitrogen mineralization in six forest litter-soil systems[J]. PLANT AND SOIL,2014,379(01-02):217-229.
APA Xiong, YM,Zeng, H,Xia, HP,&Guo, DL.(2014).Interactions between leaf litter and soil organic matter on carbon and nitrogen mineralization in six forest litter-soil systems.PLANT AND SOIL,379(01-02),217-229.
MLA Xiong, YM,et al."Interactions between leaf litter and soil organic matter on carbon and nitrogen mineralization in six forest litter-soil systems".PLANT AND SOIL 379.01-02(2014):217-229.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiong, YM]'s Articles
[Zeng, H]'s Articles
[Xia, HP]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiong, YM]'s Articles
[Zeng, H]'s Articles
[Xia, HP]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiong, YM]'s Articles
[Zeng, H]'s Articles
[Xia, HP]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.