Age-Related Modulation of the Nitrogen Resorption Efficiency Response to Growth Requirements and Soil Nitrogen Availability in a Temperate Pine Plantation

doi:10.1007/s10021-016-9962-5

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	Age-Related Modulation of the Nitrogen Resorption Efficiency Response to Growth Requirements and Soil Nitrogen Availability in a Temperate Pine Plantation
	Sun, Zhenzhong 2; Liu, Lingli 1; Peng, Shushi 2; Penuelas, Josep 3,4; Zeng, Hui 5; Piao, Shilong 2
刊名	ECOSYSTEMS
	2016
卷号	19 期号:4
关键词	nitrogen resorption green leaves senesced leaves nitrogen requirement nitrogen deposition stand age plant-available nitrogen annual stand biomass production
ISSN号	1432-9840
DOI	10.1007/s10021-016-9962-5
文献子类	Article
英文摘要	Nitrogen (N) resorption is a key strategy for conserving N in forests, and is often affected by soil nutrient condition and N sink strength within the plant. However, our understanding of the age-related pattern of N resorption and how increasing N deposition will affect this pattern is limited. Here, we investigated N resorption along a chronosequence of stands ranging in age from 2 to 100 years old, and conducted a 4-year exogenous N input experiment in stands at age class 11, 20, and 45 in a Larix Principis-rupprechtii plantation in north China. We found a logarithmic increase in leaf N resorption efficiency (NRE) and green leaf N concentration, and a logarithmic decrease in senesced-leaf N concentration along the stand-age chronosequence. Leaf NRE was negatively correlated with plant-available N concentration. Stand-level N resorption was positively correlated with the annual N requirement for tree growth. N resorption contributed to 45, 62, and 68% of the annual N supply in the 11-, 20-, and 45-year-old stands, respectively. Our exogenous N input experiment showed that leaf NRE in the 11- and 20-year-old stands decreased 17 and 12% following a 50-kg N ha(-1) y(-1) input. However, leaf NRE was not affected in the 45-year-old stand. The increases in leaf NRE and the contribution of N resorption to annual N supply along stand ages suggested that, with stand development, tree growth depends more on N resorption to supply its N need. Furthermore, the leaf NRE of mature stand was not decreased under exogenous N input, suggesting that mature stands can be stronger sinks for N deposition than young stands due to their higher capacity to retain the deposited N within plants via internal cycle. Ignoring age-related N use strategies can lead to a bias in N cycle models when evaluating forest net primary production under increasing global N deposition.
学科主题	Ecology
电子版国际标准刊号	1435-0629
出版地	NEW YORK
WOS关键词	LEAF-LITTER DECOMPOSITION ; ASPEN POPULUS-TREMULOIDES ; NUTRIENT RESORPTION ; STAND AGE ; FOREST ; RETRANSLOCATION ; DYNAMICS ; DECLINE ; LEAVES ; PHOTOSYNTHESIS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000376283100010
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41401096, 41171202, 41125004] ; National Youth Top-notch Talent Support Program in China ; European Research Council Synergy [ERC-2013-SyG675 610028]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24729]
专题	中科院植物分子生理学重点实验室
作者单位	1.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China 2.Peking Univ, Minist Educ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.UAB, CSIC, Global Ecol Unit CREAF CSIC, Barcelona 08193, Catalonia, Spain 5.CREAF, Barcelona 08193, Catalonia, Spain 6.Peking Univ, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Sun, Zhenzhong,Liu, Lingli,Peng, Shushi,et al. Age-Related Modulation of the Nitrogen Resorption Efficiency Response to Growth Requirements and Soil Nitrogen Availability in a Temperate Pine Plantation[J]. ECOSYSTEMS,2016,19(4).
APA	Sun, Zhenzhong,Liu, Lingli,Peng, Shushi,Penuelas, Josep,Zeng, Hui,&Piao, Shilong.(2016).Age-Related Modulation of the Nitrogen Resorption Efficiency Response to Growth Requirements and Soil Nitrogen Availability in a Temperate Pine Plantation.ECOSYSTEMS,19(4).
MLA	Sun, Zhenzhong,et al."Age-Related Modulation of the Nitrogen Resorption Efficiency Response to Growth Requirements and Soil Nitrogen Availability in a Temperate Pine Plantation".ECOSYSTEMS 19.4(2016).