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Unaltered phenology but increased production of ectomycorrhizal roots of Pinus elliottii under 4 years of nitrogen addition

文献类型：期刊论文

作者Kou, Liang1; Li, Shenggong1,2; Wang, Huimin1,2,3; Fu, Xiaoli1,2; Dai, Xiaoqin1
刊名NEW PHYTOLOGIST
出版日期2019-03-01
卷号221期号:4页码:2228-2238
关键词carbon (C) dynamics ectomycorrhizal (ECM) roots nitrogen (N) addition root dynamics root growth
ISSN号0028-646X
DOI10.1111/nph.15542
英文摘要Timing (phenology) and amount (production) are two integral facets of root growth, and their shifts have profound influences on below-ground resource acquisition. However, the environmental control and the effects of nitrogen (N) deposition on the production and phenology of ectomycorrhizal (ECM) roots remain unclear. Using a 4 yr minirhizotron experiment, we explored the control of the production and three phenophases (initiation, peak, and cessation of growth) of ECM roots in two soil layers and investigated their dynamic responses to N addition in a seasonally dry subtropical Pinus elliottii forest. We found a stronger control of water availability on the production and a stronger control of temperature on the phenology of ECM roots under ambient conditions. Temperature was correlated positively with initiation and negatively with cessation, especially in the shallow layer. N addition did not affect the phenology of ECM roots but increased their production by modifying N and phosphorus (P) stoichiometry in the soil and foliage. Our findings suggest a greater sensitivity of production than phenology of ECM roots to N addition. The increased production of ECM roots under N addition could be driven by N-induced P limitation or some combination of below-ground resources (P, N, water).
WOS关键词LONG-TERM ; GROWING-SEASON ; LIFE-SPAN ; TURNOVER RATE ; FOREST ; DEPOSITION ; DYNAMICS ; DROUGHT ; WATER ; PLANTATION
资助项目National Natural Science Foundation of China[41830646] ; National Natural Science Foundation of China[31700379] ; National Natural Science Foundation of China[31570443] ; National Key Research and Development Program of China[2016YFD0600202]
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000458259600045
出版者WILEY
源URL[http://ir.igsnrr.ac.cn/handle/311030/49429]  
专题千烟洲站森林生态系统研究中心_外文论文
作者单位1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Qianyanzhou Ecol Res Stn, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Jiangxi Prov Key Lab Ecosyst Proc & Informat, Taihe 343725, Peoples R China
推荐引用方式
GB/T 7714		 Kou, Liang,Li, Shenggong,Wang, Huimin,et al. Unaltered phenology but increased production of ectomycorrhizal roots of Pinus elliottii under 4 years of nitrogen addition[J]. NEW PHYTOLOGIST,2019,221(4):2228-2238.
APA Kou, Liang,Li, Shenggong,Wang, Huimin,Fu, Xiaoli,&Dai, Xiaoqin.(2019).Unaltered phenology but increased production of ectomycorrhizal roots of Pinus elliottii under 4 years of nitrogen addition.NEW PHYTOLOGIST,221(4),2228-2238.
MLA Kou, Liang,et al."Unaltered phenology but increased production of ectomycorrhizal roots of Pinus elliottii under 4 years of nitrogen addition".NEW PHYTOLOGIST 221.4(2019):2228-2238.

入库方式： OAI收割

来源：地理科学与资源研究所

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