Mixing litter from deciduous and evergreen trees enhances decomposition in a subtropical karst forest in southwestern China | |
Liu, Changcheng; Liu, Yuguo5; Guo, Ke; Zhao, Haiwei3; Qiao, Xianguo3; Wang, Shijie1,2; Zhang, Lin1,2; Cai, Xianli1,2 | |
刊名 | SOIL BIOLOGY & BIOCHEMISTRY
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2016 | |
卷号 | 101 |
关键词 | Karst ecosystem Litter species richness Litter stoichiometry Non-additive mixture effect Species composition Decomposition rate |
ISSN号 | 0038-0717 |
DOI | 10.1016/j.soilbio.2016.07.004 |
文献子类 | Article |
英文摘要 | In the karst region of southwestern China, mixed evergreen and deciduous broad-leaved forest is typical vegetation, differing remarkably from the evergreen broad-leaved forest developed in non-karst regions in the same latitudinal zone. Litter input from deciduous trees influences the characteristics of the litter layer, which could affect decomposition dynamics. We evaluated the role of deciduous trees in regulating the decomposition of mixed leaf litter in a karst forest. Four species richness treatments (one, two, four and six species) were designed to evaluate the decomposition rates of litter mixtures for two years. The ratio of deciduous to evergreen species numbers was 1:1 in all mixtures. Litter mass loss was positively correlated with initial nitrogen concentrations and negatively correlated with carbon:nitrogen ratios, suggesting that mass loss was controlled by nitrogen concentration of the litter mixture. Litter mixing accelerated the mass loss by 5.0% and enhanced nutrient release by 4.8%-26.2% for different elements. Synergistic effects in the four-species mixture were usually strongest and increased over time. Although individual litter species within the mixtures showed idiosyncratic responses to litter species richness, mixing effects enhanced decomposition of evergreen litter species more than deciduous species. This study suggests that species composition was more important than species richness in driving non additive effects on decomposition in this forest. Deciduous trees in karst ecosystems significantly contribute to nutrient cycling, through enhancing the decomposition of evergreen leaf litter. (C) 2016 Elsevier Ltd. All rights reserved. |
学科主题 | Soil Science |
出版地 | OXFORD |
WOS关键词 | LEAF-LITTER ; PLANT ; DIVERSITY ; QUALITY ; BIODIVERSITY ; MIXTURES ; DYNAMICS ; ECOSYSTEMS ; SYSTEMS ; TRAITS |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000383300200005 |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41373081] ; National Key Basic Research Program of ChinaNational Basic Research Program of China [2013CB956701] ; Fundamental Research Funds for the Central Non-profit Research Institution of CAF [CAFYBB2014ZD006] ; 'Strategic Priority Research Program' of the Chinese Academy of SciencesChinese Academy of Sciences [XDA05070400] |
内容类型 | 期刊论文 |
源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/24495] ![]() |
专题 | 植被与环境变化国家重点实验室 |
作者单位 | 1.Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China 2.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China 3.Chinese Acad Sci, Puding Karst Ecosyst Res Stn, Puding 562101, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Changcheng,Liu, Yuguo,Guo, Ke,et al. Mixing litter from deciduous and evergreen trees enhances decomposition in a subtropical karst forest in southwestern China[J]. SOIL BIOLOGY & BIOCHEMISTRY,2016,101. |
APA | Liu, Changcheng.,Liu, Yuguo.,Guo, Ke.,Zhao, Haiwei.,Qiao, Xianguo.,...&Cai, Xianli.(2016).Mixing litter from deciduous and evergreen trees enhances decomposition in a subtropical karst forest in southwestern China.SOIL BIOLOGY & BIOCHEMISTRY,101. |
MLA | Liu, Changcheng,et al."Mixing litter from deciduous and evergreen trees enhances decomposition in a subtropical karst forest in southwestern China".SOIL BIOLOGY & BIOCHEMISTRY 101(2016). |
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