干旱区生态环境知识资源中心(Arid): Stability of elemental content correlates with plant resistance to soil impoverishment

Arid

DOI	10.1007/s11104-021-05079-5
	Stability of elemental content correlates with plant resistance to soil impoverishment
	Wang, Ruzhen; Lu, Linyou; Cao, Yanzhuo; Sardans, Jordi; Liu, Heyong; Li, Bo; Zhang, Yuge; Penuelas, Josep; Dijkstra, Feike A.; Jiang, Yong
通讯作者	Jiang, Y (corresponding author), Chinese Acad Sci, Erguna Forest Steppe Ecotone Ecosyst Res Stn, Inst Appl Ecol, Shenyang 110016, Peoples R China.
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2021
英文摘要	Aims We investigated whether plant resistance to soil impoverishment would depend on their flexibility in taking up nutrients and on maintaining elemental stoichiometry. Methods We mixed sand with grassland soil in mass proportions of 0, 10, 30, 50 and 70% to simulate soil impoverishment as caused by a gradient of desertification intensity and examined how plant nitrogen (N) uptake ((NH4NO3)-N-15 and (NH4NO3)-N-15 labelling) and nutrient stoichiometry were associated with plant growth responses of a sedge (Carex duriuscula) and a forb (Potentilla chinensis). Results With increasing intensity of soil impoverishment, plant biomass, cover and density decreased for C. duriuscula, but not for P. chinensis. Interestingly, uptake of both (NO3-)-N-15 and (NH4+)-N-15 increased for the sedge but not for the forb, with the former species showing stronger preference of NO3-. However, the sedge showed decreasing nutrient contents and concentrations of phosphorus (P) and magnesium (Mg), and thus increasing stoichiometric ratios of N:P and calcium (Ca):Mg. In contrast, the forb maintained its biomass by showing strong stability in nutrient content, concentration and stoichiometry. Conclusions Stability of N uptake and nutrient stoichiometry were associated with higher resistance to soil impoverishment of the forb than the sedge. Our study highlights the importance of stability in nutrient uptake and stoichiometry for determining plant-species resistance to nutrient-poor conditions.
英文关键词	Plant-soil interactions Soil impoverishment Plant nitrogen uptake Nutrient concentration Elemental stoichiometry Plant resistance
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000674214400001
WOS关键词	NUTRIENT FORAGING STRATEGIES ; SHRUB ENCROACHMENT ; MINERAL-NUTRITION ; NITROGEN ; DESERTIFICATION ; ROOTS ; RESTORATION ; VEGETATION ; TURNOVER ; CARBON
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364331
作者单位	[Wang, Ruzhen; Cao, Yanzhuo; Liu, Heyong; Li, Bo; Jiang, Yong] Chinese Acad Sci, Erguna Forest Steppe Ecotone Ecosyst Res Stn, Inst Appl Ecol, Shenyang 110016, Peoples R China; [Lu, Linyou] Liaoning Acad Agr Sci, Inst Sandy Land Reclamat & Utilizat, Fuxing 123000, Peoples R China; [Cao, Yanzhuo; Zhang, Yuge] Shenyang Univ, Key Lab Reg Environm & Eco Remediat, Coll Environm, Shenyang 110044, Peoples R China; [Sardans, Jordi; Penuelas, Josep] CSIC, Global Ecol Unit CREAF CSIC UAB, Bellaterra 08193, Spain; [Sardans, Jordi; Penuelas, Josep] CREAF, Cerdanyola Del Valles 08193, Spain; [Dijkstra, Feike A.] Univ Sydney, Sydney Inst Agr, Sch Life & Environm Sci, Camden, NSW 2570, Australia
推荐引用方式 GB/T 7714	Wang, Ruzhen,Lu, Linyou,Cao, Yanzhuo,et al. Stability of elemental content correlates with plant resistance to soil impoverishment[J],2021.
APA	Wang, Ruzhen.,Lu, Linyou.,Cao, Yanzhuo.,Sardans, Jordi.,Liu, Heyong.,...&Jiang, Yong.(2021).Stability of elemental content correlates with plant resistance to soil impoverishment.PLANT AND SOIL.
MLA	Wang, Ruzhen,et al."Stability of elemental content correlates with plant resistance to soil impoverishment".PLANT AND SOIL (2021).