Seasonal variations in the soil amino acid pool and flux following the conversion of a natural forest to a pine plantation on the eastern Tibetan Plateau,China

doi:10.1016/j.soilbio.2016.11.002

	Seasonal variations in the soil amino acid pool and flux following the conversion of a natural forest to a pine plantation on the eastern Tibetan Plateau,China
	Zhang, Ziliang 1,2; Yuan, Yuanshuang 1,2; Zhao, Wenqiang 2; He, Heliang 2; Li, Dandan 2,3; He, Wei 1,2; Liu, Qing 2; Yin, Huajun 2
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2017-02
卷号	105 页码:1-11
关键词	Amino acids Plantation Natural forest Growing season Non-growing season Soil horizon
ISSN号	0038-0717
DOI	10.1016/j.soilbio.2016.11.002
产权排序	1
文献子类	Article
英文摘要	Although the importance of amino acids to plant nitrogen (N) nutrition in most terrestrial ecosystems is being increasingly recognized, the availability and seasonal variations of soil amino acids in subalpine coniferous forests are poorly understood. Few studies have investigated the differences in the soil amino acid pool and the cycling between forest types caused by land-use changes. In this study, we quantified the concentrations and fluxes of soil amino acids in a dragon spruce plantation and an adjacent natural forest (NF) on the eastern Tibetan Plateau, China. Soil samples from organic and mineral soil horizons were collected in May, July, September, and December of 2015 and March of 2016. The pools and fluxes of soil amino acids in the plantation converted from NF decreased significantly during the growing season and increased during the non-growing season. Meanwhile, greater pools and fluxes of soil amino acids were observed in the organic horizon than in the mineral soil horizon in both forest types. Our results indicate that distinct nutrient economies were likely formed in the plantation compared with the NF because the quality of the input litter decreased in the plantation. In addition, the importance of soil amino acids in the subalpine coniferous forest ecosystem was evaluated based on published literature. The ratios of amino acids to dissolved inorganic N (DIN) in the soils from the two studied forests were generally much lower than the range of ratios reported for other ecosystems. However, the relative high amino acid: DIN ratio in the plantations during the non-growing season suggests that the plants in the plantation may have the potential to modify their strategies for acquiring N due to the changed relative dominance between the DIN and amino acids in the soils. (C) 2016 Elsevier Ltd. All rights reserved.
学科主题	Environment/ecology
URL标识	查看原文
WOS关键词	NET NITROGEN MINERALIZATION ; DISSOLVED ORGANIC-MATTER ; TEMPERATE FORESTS ; ENZYME-ACTIVITY ; CARBON ; PLANTS ; DYNAMICS ; MICROBES ; DECOMPOSITION ; AVAILABILITY
WOS研究方向	Agriculture
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000392788600003
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/29899]
专题	成都生物研究所_生态研究
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; 3.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China;
推荐引用方式 GB/T 7714	Zhang, Ziliang,Yuan, Yuanshuang,Zhao, Wenqiang,et al. Seasonal variations in the soil amino acid pool and flux following the conversion of a natural forest to a pine plantation on the eastern Tibetan Plateau,China[J]. SOIL BIOLOGY & BIOCHEMISTRY,2017,105:1-11.
APA	Zhang, Ziliang.,Yuan, Yuanshuang.,Zhao, Wenqiang.,He, Heliang.,Li, Dandan.,...&Yin, Huajun.(2017).Seasonal variations in the soil amino acid pool and flux following the conversion of a natural forest to a pine plantation on the eastern Tibetan Plateau,China.SOIL BIOLOGY & BIOCHEMISTRY,105,1-11.
MLA	Zhang, Ziliang,et al."Seasonal variations in the soil amino acid pool and flux following the conversion of a natural forest to a pine plantation on the eastern Tibetan Plateau,China".SOIL BIOLOGY & BIOCHEMISTRY 105(2017):1-11.