Spatial characteristics of soil delta C-13 and delta N-15 reveal shrub-induced successional process in a coastal wetland

doi:10.1016/j.ecss.2020.106621

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 海岸带信息集成与综合管理实验室

	Spatial characteristics of soil delta C-13 and delta N-15 reveal shrub-induced successional process in a coastal wetland
	Zhou, Shiwei ; Wu, Jingjing ; Bi, Xiaoli
刊名	ESTUARINE COASTAL AND SHELF SCIENCE
	2020-05-05
卷号	236 页码:106621
关键词	WOODY PLANT ENCROACHMENT YELLOW-RIVER DELTA MANGROVE EXPANSION NATURAL-ABUNDANCE VEGETATION CHANGE ISOTOPE COMPOSITION ORGANIC-CARBON STABLE CARBON NITROGEN VALUES
DOI	10.1016/j.ecss.2020.106621
产权排序	[Zhou, Shiwei] Ludong Univ, Sch Agr, Hongqizhong Rd 186, Yantai 264025, Peoples R China ; [Wu, Jingjing ; Bi, Xiaoli] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Chunhui Rd 17, Yantai 264003, Peoples R China
文献子类	Article
英文摘要	Woody plant encroachment into grasslands is a worldwide phenomenon. Still, there is a research gap in quantifying the ecological processes of coastal wetland ecosystems. Here, we combined soil stable isotope technology with geostatistical methods to quantify the spatial characteristics of soil delta C-13 and delta N-15 in a coastal wetland experiencing native shrub Tamarix chinensis encroachment in the Yellow River Delta (YRD), China, and to clarify the possible mechanisms by which shrub-induced successional processes determined the spatial distribution of soil delta C-13 and delta N-15. The results showed that soil delta C-13 and delta N-15 significantly decreased from bare land to grass and to shrub at the vegetation type level. Pearson correlation showed that soil delta C-13 and delta N-15 were positively related to soil salinity, but negatively related to plant variables (grass cover, shrub crown width and above-ground biomass). Scaling method indicated that soil delta C-13 variation occurred at two different scales, 40 m and 150 m, representing influences of shrub T. chinensis and environmental heterogeneity, respectively. Soil delta N-15 variation was observed to occur at the 75 m scale, suggesting the combination effect of T. chinensis and Suaeda glauca-dominated grass species. Furthermore, other soil and plant variables also exhibited two-scale characteristics similar to soil delta C-13. Therefore, the vegetation succession processes of coastal wetlands experiencing shrub encroachment could be understood well by combining soil stable isotope with GIS spatial tools. The spatial characteristics of soil stable isotopes help us establish strategies for protecting and managing coastal wetlands.
WOS关键词	WOODY PLANT ENCROACHMENT ; YELLOW-RIVER DELTA ; MANGROVE EXPANSION ; NATURAL-ABUNDANCE ; VEGETATION CHANGE ; ISOTOPE COMPOSITION ; ORGANIC-CARBON ; STABLE CARBON ; NITROGEN ; VALUES
语种	英语
WOS记录号	WOS:000527916100020
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China [31670471, 31870468]
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/25037]
专题	烟台海岸带研究所_海岸带信息集成与综合管理实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Chunhui Rd 17, Yantai 264003, Peoples R China 2.Ludong Univ, Sch Agr, Hongqizhong Rd 186, Yantai 264025, Peoples R China;
推荐引用方式 GB/T 7714	Zhou, Shiwei,Wu, Jingjing,Bi, Xiaoli. Spatial characteristics of soil delta C-13 and delta N-15 reveal shrub-induced successional process in a coastal wetland[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2020,236:106621.
APA	Zhou, Shiwei,Wu, Jingjing,&Bi, Xiaoli.(2020).Spatial characteristics of soil delta C-13 and delta N-15 reveal shrub-induced successional process in a coastal wetland.ESTUARINE COASTAL AND SHELF SCIENCE,236,106621.
MLA	Zhou, Shiwei,et al."Spatial characteristics of soil delta C-13 and delta N-15 reveal shrub-induced successional process in a coastal wetland".ESTUARINE COASTAL AND SHELF SCIENCE 236(2020):106621.