气候变化领域集成服务门户(CCPortal): Introducing nitrogen-fixing tree species and mixing with Pinus massoniana alters and evenly distributes various chemical compositions of soil organic carbon in a planted forest in southern China

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DOI	10.1016/j.foreco.2019.117477
	Introducing nitrogen-fixing tree species and mixing with Pinus massoniana alters and evenly distributes various chemical compositions of soil organic carbon in a planted forest in southern China
	Wang H.; Liu S.; Song Z.; Yang Y.; Wang J.; You Y.; Zhang X.; Shi Z.; Nong Y.; Ming A.; Lu L.; Cai D.
发表日期	2019
ISSN	0378-1127
卷号	449
英文摘要	There are potential effects of converting a planted-forest type from conifer to broadleaf or mixed-species on soil organic carbon (SOC) chemical composition, and the quantity and distribution of various chemical compositions of SOC remain uncertain. An afforestation experiment with different tree species (Pinus massoniana, Erythrophleum fordii [N-fixing species], and mixed P. massoniana and E. fordii) was conducted in clear-cut sites of P. massoniana-planted forests in a subtropical region. Topsoil organic C quality and microbial diversity were assessed after eight years of afforestation. Referring to the species diversity index in the community, Pielou's evenness index was used for estimating the evenness of distribution of various organic C compositions in the total organic C of soil, litter, and fine roots. The proportions of alkyl C and carbonyl C in SOC, as well as the alkyl C/O-alkyl C (A/O-A) ratios and the distributed evenness of the four main SOC chemical compositions were higher in the monospecific E. fordii and mixed-species-planted forests than in the monospecific P. massoniana-planted forest. Positive relationships of the A/O-A ratio and the evenness of distribution of various SOC chemical compositions in the litter as well as fine root C quality were observed. Microbial biomass C was positively correlated with the labile SOC (O-alkyl C). Multivariate analysis showed that the fine roots had a closer correlation with the chemical composition of SOC than the litter. These results highlight that introducing native N-fixing broadleaf tree species and mixing N-fixing species into conifer forests probably enhances the SOC chemical stability. It also minimizes the risk of C decomposition posed by any one soil organic matter (SOM) constituent having a huge impact during climate change through increasing the proportion of recalcitrant C components and even distribution of various SOM chemical compositions. © 2019 Elsevier B.V.
英文关键词	Litter quality; Organic carbon chemical composition; Planted forests; Soil microbial biomass and diversity; Tree species
语种	英语
scopus关键词	Chemical analysis; Chemical stability; Climate change; Decay (organic); Mixing; Multivariant analysis; Nitrogen; Nitrogen fixation; Organic carbon; Reforestation; Soils; Chemical compositions; Litter quality; Planted forests; Soil microbial biomass; Tree species; Population distribution; afforestation; biomass; carbon; climate change; coniferous tree; correlation; diversity index; fine root; litter; plantation forestry; root; soil organic matter; species diversity; Chemical Analysis; Distribution; Fixing; Formulations; Mixing; Nitrogen; Reforestation; Soil; Coniferophyta; Erythrophleum fordii; Pinus massoniana
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155813
作者单位	Key Laboratory of Forest Ecology and Environment, China's State Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, No. 2 Dongxiaofu, Haidian District, Beijing, 100091, China; Faculty of Resources and Environmental Sciences, Hubei University, Wuhan, 430062, China; Division of Forestry and Natural Resources, West Virginia University, P.O. Box 6215, Morgantown, WV 26506, United States; College of Forestry, Guangxi University, Nanning, Guangxi 530004, China; Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, College of Environment and Planning, Henan University, Kaifeng, Henan 475004, China; Experimental Centre of Tropical Forestry, Chinese Academy of Forestry, Guangxi Youyiguan Forest Ecosystem National Research Station, Pingxiang, Guangxi 532600, China
推荐引用方式 GB/T 7714	Wang H.,Liu S.,Song Z.,et al. Introducing nitrogen-fixing tree species and mixing with Pinus massoniana alters and evenly distributes various chemical compositions of soil organic carbon in a planted forest in southern China[J],2019,449.
APA	Wang H..,Liu S..,Song Z..,Yang Y..,Wang J..,...&Cai D..(2019).Introducing nitrogen-fixing tree species and mixing with Pinus massoniana alters and evenly distributes various chemical compositions of soil organic carbon in a planted forest in southern China.Forest Ecology and Management,449.
MLA	Wang H.,et al."Introducing nitrogen-fixing tree species and mixing with Pinus massoniana alters and evenly distributes various chemical compositions of soil organic carbon in a planted forest in southern China".Forest Ecology and Management 449(2019).