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DOI	10.1016/j.catena.2021.105576
	Soil net nitrogen transformation rates are co-determined by multiple factors during the landscape evolution in Horqin Sandy Land
	Lv, Peng; Sun, Shanshan; Medina-Roldan, Eduardo; Zhao, Shenglong; Hu, Ya; Guo, Aixia; Zuo, Xiaoan
通讯作者	Zuo, XA (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, 320 Donggang West Rd, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0341-8162
EISSN	1872-6887
卷号	206
英文摘要	Vegetation restoration affects soil N cycling, which in turn strongly affects ecosystem functions, such as plant productivity and N availability. The soil N availability is a major limiting factor for restoring vegetation in semiarid grasslands and affects landscape evolution. However, few studies have focused on how landscape evolution caused by vegetation restoration affects soil N availability and transformation in semiarid sandy grasslands. Here, we conducted a 5-year field experiment from 2015 to 2019 to evaluate the growth season (May-August) changes in soil inorganic N pools and net N transformation rates along a landscape evolution gradient caused by vegetation restoration: mobile dunes, semi-fixed dunes, fixed dunes, and dune grasslands. We examined the relationship between climate factors, vegetation characteristics, soil properties, and soil net N transformation rates in different landscape types through multivariate analyses. The landscape type, sampling time, interannual variation, and their interactive effects significantly affected the soil inorganic N pool and net N transformation rate. Soil nitrate N concentration accounted for 68% of the total inorganic N, and soil nitrification dominated the soil N transformation during landscape evolution. Redundancy analysis revealed that the changes in net N nitrification and mineralization rates during the growing season were closely correlated with climate factors, vegetation characteristics, and soil properties. Variation partitioning analysis showed that the soil net N transformation rate during the growing season was mainly affected by soil properties, whereas soil net N transformation in August for all years was mainly affected by climate factors. These results suggest that soil N availability and transformation during landscape evolution caused by vegetation restoration were co-determined by climatic factors, vegetation characteristics, and soil properties. Therefore, long-term field monitoring should be considered to improve our exploration of soil N transformation changes and their underlying mechanisms in semiarid grassland ecosystems.
关键词	PLANT DIVERSITY INNER-MONGOLIA VEGETATION RESTORATION MINERALIZATION GRASSLAND PRODUCTIVITY CARBON WATER NITRIFICATION AFFORESTATION
英文关键词	Soil inorganic N; Net N transformation; Landscape type; Sampling time; Annual variation; Landscape evolution
语种	英语
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:000688449100082
来源期刊	CATENA
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253676
作者单位	[Lv, Peng; Sun, Shanshan; Zuo, Xiaoan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China; [Lv, Peng; Zhao, Shenglong; Hu, Ya; Guo, Aixia; Zuo, Xiaoan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China; [Lv, Peng; Sun, Shanshan; Zhao, Shenglong; Hu, Ya; Guo, Aixia] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Medina-Roldan, Eduardo] Xian Jiaotong Liverpool Univ, Dept Hlth & Environm Sci, Suzhou 215123, Peoples R China; [Lv, Peng; Sun, Shanshan; Zhao, Shenglong; Hu, Ya; Guo, Aixia; Zuo, Xiaoan] Key Lab Stress Physiol & Ecol Cold & Arid Reg, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Lv, Peng,Sun, Shanshan,Medina-Roldan, Eduardo,et al. Soil net nitrogen transformation rates are co-determined by multiple factors during the landscape evolution in Horqin Sandy Land[J]. 中国科学院西北生态环境资源研究院,2021,206.
APA	Lv, Peng.,Sun, Shanshan.,Medina-Roldan, Eduardo.,Zhao, Shenglong.,Hu, Ya.,...&Zuo, Xiaoan.(2021).Soil net nitrogen transformation rates are co-determined by multiple factors during the landscape evolution in Horqin Sandy Land.CATENA,206.
MLA	Lv, Peng,et al."Soil net nitrogen transformation rates are co-determined by multiple factors during the landscape evolution in Horqin Sandy Land".CATENA 206(2021).