中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 武汉植物园
  3. 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

文献类型：期刊论文

作者Liao, Chang1,2; Li, Qianxi1,2; Wang, Xinggang1,2; Jiang, Mingxi1; Wu, Yu1,2; Yang, Xiaolu1; Liu, Feng1
刊名JOURNAL OF SOILS AND SEDIMENTS
出版日期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
DOI10.1007/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
WOS记录号WOS:000407481200009
出版者SPRINGER HEIDELBERG
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.

入库方式： OAI收割

来源：武汉植物园

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。