Differential response to warming of the uptake of nitrogen by plant species in non-degraded and degraded alpine grasslands

doi:10.1007/s11368-019-02255-0

	Differential response to warming of the uptake of nitrogen by plant species in non-degraded and degraded alpine grasslands
	Pang, Zhe 1; Jiang, Lili 2; Wang, Shiping 2; Xu, Xingliang 3; Rui, Yichao 4; Zhang, Zhenhua 5; Luo, Caiyun 5; Wang, Yanfen 1
刊名	JOURNAL OF SOILS AND SEDIMENTS
	2019-05-01
卷号	19 期号:5 页码:2212-2221
关键词	Alpine grasslands Degradation Dominant species Intact amino acids Organic N Tibetan Plateau Warming
ISSN号	1439-0108
DOI	10.1007/s11368-019-02255-0
通讯作者	Jiang, Lili(lljiang@itpcas.ac.cn) ; Wang, Yanfen()
英文摘要	Purpose Chemical niche differentiation and changes in the dominance of plant species have been proposed as mechanisms for the coexistence of different types of plants. We explored how dominant plant species take up ammonium (NH4+), nitrate (NO3-), and glycine under conditions of warming and soil degradation in alpine grasslands. Materials and methods Open-top chambers were used to simulate warming in degraded and non-degraded plots in an alpine grassland ecosystem on the Tibetan Plateau. Plant species were selected in both non-degraded (Kobresia pygmaea and Aster tataricus) and degraded (Aster tataricus and Chenopodium glaucum) plots. Short-term N-15-labeling experiments with NH4+-N, NO3--N, and glycine ((CN)-C-13-N-15-glycine) were conducted in each of four subplots with water alone as the control. Results and discussion All of the selected plant species took up both organic and inorganic forms of N in the K. pygmaea grassland. Warming increased the uptake of glycine-N by the dominant species, whereas the uptake of NH4+-N by the non-dominant species increased in both non-degraded and degraded grasslands. Warming changed the N uptake preference of A. tataricus from NO3--N to NH4+-N in non-degraded grasslands, but did not change the preference of A. tataricus under degraded conditions. This suggests that degradation can affect the preference of different plant species for particular forms of N as a response to warming. Conclusions Plants in K. pygmaea grasslands take up organic N, although inorganic N is the dominant form of N used. The effects of warming on the uptake of N by plants varied with species, the form of N, and the degradation of the grassland. Degradation modified the effect of warming on the preference of plants for different forms of N. Different plant species developed different patterns for the uptake of N in both non-degraded and degraded plots, which may facilitate their coexistence in alpine grasslands.
资助项目	National Key Research and Development Program of China[2016YFC0501802] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA2005010405] ; National Science Foundation of China[31672474] ; National Science Foundation of China[41731175] ; National Science Foundation of China[31872994] ; National Science Foundation of China[31770524]
WOS关键词	ORGANIC NITROGEN ; N UPTAKE ; INORGANIC NITROGEN ; COMPETITION ; DEGRADATION ; ACQUISITION ; AMMONIUM ; GLYCINE ; CARBON ; MICROORGANISMS
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000464836300007
资助机构	National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/48111]
专题	中国科学院地理科学与资源研究所
通讯作者	Jiang, Lili; Wang, Yanfen
作者单位	1.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Univ Wisconsin, Dept Soil Sci, Madison, WI 53706 USA 5.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Pang, Zhe,Jiang, Lili,Wang, Shiping,et al. Differential response to warming of the uptake of nitrogen by plant species in non-degraded and degraded alpine grasslands[J]. JOURNAL OF SOILS AND SEDIMENTS,2019,19(5):2212-2221.
APA	Pang, Zhe.,Jiang, Lili.,Wang, Shiping.,Xu, Xingliang.,Rui, Yichao.,...&Wang, Yanfen.(2019).Differential response to warming of the uptake of nitrogen by plant species in non-degraded and degraded alpine grasslands.JOURNAL OF SOILS AND SEDIMENTS,19(5),2212-2221.
MLA	Pang, Zhe,et al."Differential response to warming of the uptake of nitrogen by plant species in non-degraded and degraded alpine grasslands".JOURNAL OF SOILS AND SEDIMENTS 19.5(2019):2212-2221.