Spatial variation and soil nitrogen potential hotspots in a mixed land cover catchment on the Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Yu Yun-long5,6; Jin Zhao2,4,6; Lin, Henry2,3; Wang Yun-qiang2,4,6; Zhao Ya-li6; Chu Guang-chen6; Zhang Jing6; Song Yi6; Zheng Han1,6 |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2019-06-01 |
| 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 |
| 通讯作者 | Jin Zhao(jinzhao@ieecas.cn) |
| 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. |
| WOS关键词 | BIOGEOCHEMICAL HOT-SPOTS ; ORGANIC-CARBON ; SLOPE ASPECT ; TOPOGRAPHIC ASPECT ; MOISTURE ; MOMENTS ; VARIABILITY ; TEMPERATURE ; DENITRIFICATION ; MINERALIZATION |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000471607300010 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National key research and development program ; National Natural Science Foundation of China |
| 源URL | [http://ir.ieecas.cn/handle/361006/13824]  |
| 专题 | 地球环境研究所_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.Changan Univ, Sch Environm Sci & Engn, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effect Arid Reg, Xian 710054, Shaanxi, Peoples R China 2.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry & A, Xian 710061, Shaanxi, Peoples R China 3.Penn State Univ, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA 4.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, 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. |
入库方式： OAI收割
来源：地球环境研究所
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