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

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2019 > Vol16 No.6

	Spatial variation and soil nitrogen potential hotspots in a mixed land cover catchment on the Chinese Loess Plateau
	Yu Yun-long; Jin Zhao; Lin, Henry; Wang Yun-qiang; Zhao Ya-li; Chu Guang-chen; Zhang Jing; Song Yi; Zheng Han
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:6 页码:1353-1366
关键词	Soil biogeochemistry Spatial heterogeneity Multivariate statistical analysis Environmental factors Loess Plateau
ISSN号	1672-6316
DOI	10.1007/s11629-018-5175-z
文献子类	Article
英文摘要	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.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000471607300010
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46514]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.6
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.