How environmental and vegetation factors affect spatial patterns of soil carbon and nitrogen in a subtropical mixed forest in Central China

doi:10.1007/s11368-016-1491-5

CORC > 武汉植物园 > 中国科学院武汉植物园

	How environmental and vegetation factors affect spatial patterns of soil carbon and nitrogen in a subtropical mixed forest in Central China
	Liao, Chang 1,2; Li, Qianxi 1,2; Wang, Xinggang 1,2; Jiang, Mingxi 1; Wu, Yu 1,2; Yang, Xiaolu 1; Liu, Feng 1
刊名	JOURNAL OF SOILS AND SEDIMENTS
	2017-09-01
卷号	17 期号:9 页码:2296-2304
关键词	Forest ecosystems Soil organic carbon Spatial variation Total nitrogen Variation partitioning
ISSN号	1439-0108
DOI	10.1007/s11368-016-1491-5
英文摘要	Soil properties are highly heterogeneous in forest ecosystems, which poses difficulties in estimating soil carbon (C) and nitrogen (N) pools. However, little is known about the relative contributions of environmental factors and vegetation to spatial variations in soil C and N, especially in highly diverse mixed forests. Here, we examined the spatial variations of soil organic carbon (SOC) and total nitrogen (TN) in a subtropical mixed forest in central China, and then quantified the main drivers. Soil samples (n = 972) were collected from a 25-ha forest dynamic plot in Badagonshan Nature Reserve, central China. All trees with diameter at breast height (DBH) ae1 cm and topography data in the plot were surveyed in detail. Geostatistical analyses were used to characterize the spatial variability of SOC and TN, while variation partitioning combined with Mantel's test were used to quantify the relative contribution of each type of factors. Both surface soil (0-10 cm) and subsurface soil (10-30 cm) exhibited moderate spatial autocorrelation with explainable fractions ranged from 31 to 47 %. The highest contribution to SOC and TN variation came from soil variables (including soil pH and available phosphorus), followed by vegetation and topographic variables. Although the effect of topography was weak, Mantel's test still showed a significant relationship between topography and SOC. Strong interactions among these variables were discovered. Compared with surface soil, the explanatory power of environmental variables was much lower for subsurface soil. The differences in relative contributions between surface and subsurface soils suggest that the dominating ecological process are likely different in the two soil depths. The large unexplained variation emphasized the importance of fine-scale variations and ecological processes. The large variations in soil C and N and their controlling mechanisms should be taken into account when evaluating how forest managements may affect C and N cycles.
资助项目	National Basic Research Program of China[2014CB954004] ; National Natural Science Foundation[31270515] ; National Natural Science Foundation[31400463] ; Badagongshan National Nature Reserve
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000407481200009
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1318]
专题	中国科学院武汉植物园
通讯作者	Liu, Feng
作者单位	1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liao, Chang,Li, Qianxi,Wang, Xinggang,et al. How environmental and vegetation factors affect spatial patterns of soil carbon and nitrogen in a subtropical mixed forest in Central China[J]. JOURNAL OF SOILS AND SEDIMENTS,2017,17(9):2296-2304.
APA	Liao, Chang.,Li, Qianxi.,Wang, Xinggang.,Jiang, Mingxi.,Wu, Yu.,...&Liu, Feng.(2017).How environmental and vegetation factors affect spatial patterns of soil carbon and nitrogen in a subtropical mixed forest in Central China.JOURNAL OF SOILS AND SEDIMENTS,17(9),2296-2304.
MLA	Liao, Chang,et al."How environmental and vegetation factors affect spatial patterns of soil carbon and nitrogen in a subtropical mixed forest in Central China".JOURNAL OF SOILS AND SEDIMENTS 17.9(2017):2296-2304.