Spatial variation and soil nitrogen potential hotspots in a mixed land cover catchment on the Chinese Loess Plateau

doi:10.1007/s11629-018-5175-z

IEECAS OpenIR > 生态环境研究室

	Spatial variation and soil nitrogen potential hotspots in a mixed land cover catchment on the Chinese Loess Plateau
	Yu Yun-long 1,2; Jin Zhao 1,3,5; Lin, Henry 4,5; Wang Yun-qiang 1,3,5; Zhao Ya-li 1; Chu Guang-chen 1; Zhang Jing 1; Song Yi 1; Zheng Han 1,6
通讯作者	Jin Zhao(jinzhao@ieecas.cn)
	2019-06-01
发表期刊	JOURNAL OF MOUNTAIN SCIENCE
ISSN	1672-6316
卷号	16 期号:6 页码:1353-1366
摘要	Soil nitrogen (N) is critical to ecosystem services and environmental quality. Hotspots of soil N in areas with high soil moisture have been widely studied, however, their spatial distribution and their linkage with soil N variation have seldom been examined at a catchment scale in areas with low soil water content. We investigated the spatial variation of soil N and its hotspots in a mixed land cover catchment on the Chinese Loess Plateau and used multiple statistical methods to evaluate the effects of the critical environmental factors on soil N variation and potential hotspots. The results demonstrated that land cover, soil moisture, elevation, plan curvature and flow accumulation were the dominant factors affecting the spatial variation of soil nitrate (NN), while land cover and slope aspect were the most important factors impacting the spatial distribution of soil ammonium (AN) and total nitrogen (TN). In the studied catchment, the forestland, gully land and grassland were found to be the potential hotspots of soil NN, AN and TN accumulation, respectively. We concluded that land cover and slope aspect could be proxies to determine the potential hotspots of soil N at the catchment scale. Overall, land cover was the most important factor that resulted in the spatial variations of soil N. The findings may help us to better understand the environmental factors affecting soil N hotspots and their spatial variation at the catchment scale in terrestrial ecosystems.
关键词	Soil biogeochemistry Spatial heterogeneity Multivariate statistical analysis Environmental factors Loess Plateau
DOI	10.1007/s11629-018-5175-z
关键词[WOS]	BIOGEOCHEMICAL HOT-SPOTS ; ORGANIC-CARBON ; SLOPE ASPECT ; TOPOGRAPHIC ASPECT ; MOISTURE ; MOMENTS ; VARIABILITY ; TEMPERATURE ; DENITRIFICATION ; MINERALIZATION
收录类别	SCI ; SCI
语种	英语
资助项目	National key research and development program[2017YFD0800502] ; National Natural Science Foundation of China[41573067] ; National Natural Science Foundation of China[41790444] ; National Natural Science Foundation of China[41471189] ; National Natural Science Foundation of China[31700414]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	National key research and development program ; National Natural Science Foundation of China
WOS类目	Environmental Sciences
WOS记录号	WOS:000471607300010
出版者	SCIENCE PRESS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/13825
专题	生态环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Jin Zhao
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 4.Penn State Univ, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA 5.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry & A, Xian 710061, Shaanxi, Peoples R China 6.Changan Univ, Sch Environm Sci & Engn, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effect Arid Reg, Xian 710054, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yu Yun-long,Jin Zhao,Lin, Henry,et al. Spatial variation and soil nitrogen potential hotspots in a mixed land cover catchment on the Chinese Loess Plateau[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(6):1353-1366.
APA	Yu Yun-long.,Jin Zhao.,Lin, Henry.,Wang Yun-qiang.,Zhao Ya-li.,...&Zheng Han.(2019).Spatial variation and soil nitrogen potential hotspots in a mixed land cover catchment on the Chinese Loess Plateau.JOURNAL OF MOUNTAIN SCIENCE,16(6),1353-1366.
MLA	Yu Yun-long,et al."Spatial variation and soil nitrogen potential hotspots in a mixed land cover catchment on the Chinese Loess Plateau".JOURNAL OF MOUNTAIN SCIENCE 16.6(2019):1353-1366.