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Nitrogen addition enhanced water uptake by affecting fine root morphology and coarse root anatomy of Chinese pine seedlings

文献类型：期刊论文

作者Wang, GL (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Liu, Fang3; Xue, Sha1,3; Wang, Guoliang1,3
刊名PLANT AND SOIL
出版日期2017
卷号418期号:1-2页码:177-189
关键词Nitrogen Deposition Root Morphology Physiology Respiration Anatomy Water Uptake
ISSN号0032-079X
DOI10.1007/s11104-017-3283-0
文献子类Article
英文摘要Global nitrogen (N) deposition can affect root morphology, anatomy and thus the water uptake by trees. The variation in uptake with the induced changes in root morphology and anatomy, however, is not clear. We grew seedlings of Pinus tabuliformis for two years across an N gradient (0-12 g N m(-2) y(-1)) and analysed the associated changes between the root hydraulic conductance (RHC) and the morphology and anatomy of different root orders. (1) The RHC increased with N addition and reached the peak at 9 g N m(-2) y(-1). (2) The number, length, biomass and mycorrhizal colonization rates of the fine roots (first two order roots) decreased with N addition. (3) The stele diameter and tracheid diameter of the coarse roots (third and higher root orders) increased with N addition. (4) Decreasing root quantity and increasing physiological activity (i.e. RHC and respiration rates) induced by N addition may be a trade-off between root morphology and physiology plastic. The morphological, anatomical and physiological responses of the different root orders to N addition increased the water uptake, transport, and whole-seedling growth. These heterogeneous responses should be incorporated into models of root uptake and growth in forest ecosystems.
学科主题Agriculture ; Plant Sciences
URL标识查看原文
出版地DORDRECHT
语种英语
WOS记录号WOS:000411232600014
出版者SPRINGER
资助机构National Natural Science Foundation of China [41371508, 41671513]; Key Technologies RD Program [2015BAC01B03]; Key Projects of Chinese Academy of Sciences [KFZD-SW-306-2] ; National Natural Science Foundation of China [41371508, 41671513]; Key Technologies RD Program [2015BAC01B03]; Key Projects of Chinese Academy of Sciences [KFZD-SW-306-2] ; National Natural Science Foundation of China [41371508, 41671513]; Key Technologies RD Program [2015BAC01B03]; Key Projects of Chinese Academy of Sciences [KFZD-SW-306-2] ; National Natural Science Foundation of China [41371508, 41671513]; Key Technologies RD Program [2015BAC01B03]; Key Projects of Chinese Academy of Sciences [KFZD-SW-306-2]
源URL[http://ir.iswc.ac.cn/handle/361005/7928]  
专题水保所科研产出--SCI_2017--SCI
通讯作者Wang, GL (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Wang, GL ,Liu, Fang,Xue, Sha,et al. Nitrogen addition enhanced water uptake by affecting fine root morphology and coarse root anatomy of Chinese pine seedlings[J]. PLANT AND SOIL,2017,418(1-2):177-189.
APA Wang, GL ,Liu, Fang,Xue, Sha,&Wang, Guoliang.(2017).Nitrogen addition enhanced water uptake by affecting fine root morphology and coarse root anatomy of Chinese pine seedlings.PLANT AND SOIL,418(1-2),177-189.
MLA Wang, GL ,et al."Nitrogen addition enhanced water uptake by affecting fine root morphology and coarse root anatomy of Chinese pine seedlings".PLANT AND SOIL 418.1-2(2017):177-189.

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来源：水土保持研究所

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