Increased phosphate uptake but not resorption alleviates phosphorus deficiency induced by nitrogen deposition in temperate Larix principis-rupprechtii plantations

doi:10.1111/nph.14083

	Increased phosphate uptake but not resorption alleviates phosphorus deficiency induced by nitrogen deposition in temperate Larix principis-rupprechtii plantations
	Deng, Meifeng 1; Liu, Lingli; Sun, Zhenzhong 2; Piao, Shilong 2; Ma, Yuecun 2; Chen, Yiwei 1; Wang, Jing 1; Qiao, Chunlian 1; Wang, Xin 1; Li, Ping 1
	2016
发表期刊	NEW PHYTOLOGIST
ISSN	0028-646X
卷号	212 期号:4 页码:1019-1029
摘要	The imbalance between nitrogen (N) and phosphorus (P) deposition may shift temperate ecosystems from N- to P-limitation. However, it is unclear how the imbalanced N P input affects the strategies of plants to acquire P and, therefore, the growth of plants and the competition among species. We conducted a 4-yr N-addition experiment in young and mature larch (Larix principisrupprechtii) stands. Plant growth and P acquisition strategies were assessed for larch and understorey vegetation. N addition stimulated the aboveground productivity of understorey vegetation in the young stand and larch in the mature stand, with other species unaffected. The competitive advantages of understorey vegetation in the young stand and larch in the mature stand were associated with their high stoichiometric homoeostasis. To maintain the N P homoeostasis of these species, an increase in phosphatase activity but not P resorption efficiency increased the supply of P. Additionally, N addition accelerated P mineralization by decreasing the fungal-to bacterial ratios and improved uptake of soil P by increasing the arbuscular mycorrhizas-toectomycorrhizas ratios. Our results suggest that plants with high stoichiometric homoeostasis could better cope with N deposition-induced P-deficiency. Although P resorption efficiency showed little plasticity in response, plants activated a variety of P-acquisition pathways to alleviate the P deficiency caused by N deposition.
关键词	growth rate hypothesis mycorrhizae N deposition N: P ratio P-acquiring strategies phosphatase activity stand age stoichiometric homocostasis
学科领域	Plant Sciences
DOI	10.1111/nph.14083
收录类别	SCI
语种	英语
WOS关键词	BIOLOGICAL STOICHIOMETRY ; ACQUISITION STRATEGIES ; NUTRIENT LIMITATION ; SOIL ; CARBON ; GROWTH ; PATTERNS ; RATIOS ; PLANTS ; DIVERSITY
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000389189100002
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1469-8137
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31522011] ; Chinese National Key Development Program for Basic Research [2013CB956304, 2014CB954003] ; National 1000 Young Talents Program
作者邮箱	lingli.liu@ibcas.ac.cn
作品OA属性	Bronze
引用统计	被引频次：101[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25224
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Deng, Meifeng,Liu, Lingli,Sun, Zhenzhong,et al. Increased phosphate uptake but not resorption alleviates phosphorus deficiency induced by nitrogen deposition in temperate Larix principis-rupprechtii plantations[J]. NEW PHYTOLOGIST,2016,212(4):1019-1029.
APA	Deng, Meifeng.,Liu, Lingli.,Sun, Zhenzhong.,Piao, Shilong.,Ma, Yuecun.,...&Li, Ping.(2016).Increased phosphate uptake but not resorption alleviates phosphorus deficiency induced by nitrogen deposition in temperate Larix principis-rupprechtii plantations.NEW PHYTOLOGIST,212(4),1019-1029.
MLA	Deng, Meifeng,et al."Increased phosphate uptake but not resorption alleviates phosphorus deficiency induced by nitrogen deposition in temperate Larix principis-rupprechtii plantations".NEW PHYTOLOGIST 212.4(2016):1019-1029.

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