Arid
DOI10.1007/s11104-016-2864-7
Combined effects of litter features, UV radiation, and soil water on litter decomposition in denuded areas of the arid Patagonian Monte
Bosco, Tomas1; Beatriz Bertiller, Monica1,2; Lorena Carrera, Analia1,2
通讯作者Bosco, Tomas
来源期刊PLANT AND SOIL
ISSN0032-079X
EISSN1573-5036
出版年2016
卷号406期号:1-2页码:71-82
英文摘要

We evaluated the combined effects of litter type, UV radiation, and soil water on litter decomposition processes in denuded areas of the arid Patagonian Monte.


We conducted a manipulative experiment with litterbags with litter dominated by evergreen shrubs (ES), and litter dominated by perennial grasses and evergreen shrubs (PG) placed on undisturbed upper soil blocks from denuded areas. We subjected soil blocks with litterbags to near ambient and attenuated UV radiation levels, and low and high soil water levels. We evaluated litter mass loss and changes in N, soluble phenolic and lignin contents during 420 days.


PG litter decomposed faster than ES litter, and UV radiation and soil water enhanced decomposition of both litter types. PG litter immobilized N while ES litter released N. During decomposition, soluble phenolic content decreased while lignin content did not vary in both litter types.


Our results highlighted that abiotic and biotic controls differed between mass loss and N release/immobilization. We found additive effects of the studied factors on mass loss while litter chemistry controlled microbial N release or immobilization from decaying litter. Further studies should explore the effects of these factors on species or functional groups shifts in microorganism communities.


英文关键词C/N ratio Litter chemistry Photo-degradation N Lignin Soluble phenolics
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000381991600006
WOS关键词ULTRAVIOLET-B RADIATION ; PLANT LITTER ; LONG-TERM ; LEAF-LITTER ; NORTHEASTERN PATAGONIA ; SEMIARID LANDSCAPES ; DYNAMICS ; VEGETATION ; NITROGEN ; MODEL
WOS类目Agronomy ; Plant Sciences ; Soil Science
WOS研究方向Agriculture ; Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/195499
作者单位1.Consejo Nacl Invest Cient & Tecn, CENPAT, IPEEC, Blvd Brown 2915, RA-9120 Puerto Madryn, Chubut, Argentina;
2.UNPSJB, Fac Ciencias Nat, Blvd Brown 3000, RA-9120 Puerto Madryn, Chubut, Argentina
推荐引用方式
GB/T 7714
Bosco, Tomas,Beatriz Bertiller, Monica,Lorena Carrera, Analia. Combined effects of litter features, UV radiation, and soil water on litter decomposition in denuded areas of the arid Patagonian Monte[J],2016,406(1-2):71-82.
APA Bosco, Tomas,Beatriz Bertiller, Monica,&Lorena Carrera, Analia.(2016).Combined effects of litter features, UV radiation, and soil water on litter decomposition in denuded areas of the arid Patagonian Monte.PLANT AND SOIL,406(1-2),71-82.
MLA Bosco, Tomas,et al."Combined effects of litter features, UV radiation, and soil water on litter decomposition in denuded areas of the arid Patagonian Monte".PLANT AND SOIL 406.1-2(2016):71-82.
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