文献类型：期刊文献

英文题名：Functional traits drive the contribution of solar radiation to leaf litter decomposition among multiple arid-zone species

作者：Pan, Xu[1,2,3] Song, Yao-Bin[1] Liu, Guo-Fang[3] Hu, Yu-Kun[3] Ye, Xue-Hua[3] Cornwell, William K.[4,5] Prinzing, Andreas[6] Dong, Ming[1,3] Cornelissen, Johannes H. C.[4]

第一作者：Pan, Xu;潘旭

通信作者：Dong, M[1]

机构：[1]Hangzhou Normal Univ, Coll Life & Environm Sci, Key Lab Hangzhou City Ecosyst Protect & Restorat, Hangzhou, Zhejiang, Peoples R China;[2]Chinese Acad Forestry, Inst Wetland Res, Beijing, Peoples R China;[3]Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China;[4]Vrije Univ Amsterdam, Dept Ecol Sci, Amsterdam, Netherlands;[5]Univ New S Wales, Sch Biol Earth & Environm Sci, Evolut & Ecol Res Ctr, Sydney, NSW, Australia;[6]Univ Rennes 1, CNRS, Rennes, France

年份：2015

卷号：5

外文期刊名：SCIENTIFIC REPORTS

收录：;Scopus(收录号：2-s2.0-84939426242);WOS:【SCI-EXPANDED(收录号:WOS:000359659500001)】；

基金：We thank Lijuan Cui, Wei-Ming He, Fei-Hai Yu and Zhen-Ying Huang for assistance and guidance during experimental design, Yan Li, Xue-Yong Zhao, Zhi-Shan Zhang and Zhi-Chun Lan for assistance during litter sampling, and Yu Chu, Feng-Hong Liu, Qing-Guo Cui, Shu-Qin Gao, Yuan Sui and Wei-Wei Zhao for providing much practical assistance. This work was supported by the NSFC (Grant 31261120580, 31400346, 31470712 and 31470032) and the Innovative R & D grant (201203) from Hangzhou Normal University. JHCC was supported by a Senior Visiting Scientist grant by CAS and by grant 12CDP007 of the Royal Netherlands Academy of Arts and Sciences (KNAW).

语种：英文

摘要：In arid zones, strong solar radiation has important consequences for ecosystem processes. To better understand carbon and nutrient dynamics, it is important to know the contribution of solar radiation to leaf litter decomposition of different arid-zone species. Here we investigated: (1) whether such contribution varies among plant species at given irradiance regime, (2) whether interspecific variation in such contribution correlates with interspecific variation in the decomposition rate under shade; and (3) whether this correlation can be explained by leaf traits. We conducted a factorial experiment to determine the effects of solar radiation and environmental moisture for the mass loss and the decomposition constant k-values of 13 species litters collected in Northern China. The contribution of solar radiation to leaf litter decomposition varied significantly among species. Solar radiation accelerated decomposition in particular in the species that already decompose quickly under shade. Functional traits, notably specific leaf area, might predict the interspecific variation in that contribution. Our results provide the first empirical evidence for how the effect of solar radiation on decomposition varies among multiple species. Thus, the effect of solar radiation on the carbon flux between biosphere and atmosphere may depend on the species composition of the vegetation.