气候变化领域集成服务门户(CCPortal): Phosphatase activity and nitrogen fixation reflect species differences, not nutrient trading or nutrient balance, across tropical rainforest trees

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DOI	10.1111/ele.13129
	Phosphatase activity and nitrogen fixation reflect species differences, not nutrient trading or nutrient balance, across tropical rainforest trees
	Batterman S.A.; Hall J.S.; Turner B.L.; Hedin L.O.; LaHaela Walter J.K.; Sheldon P.; van Breugel M.
发表日期	2018
ISSN	1461023X
卷号	21 期号:10
英文摘要	A fundamental biogeochemical paradox is that nitrogen-rich tropical forests contain abundant nitrogen-fixing trees, which support a globally significant tropical carbon sink. One explanation for this pattern holds that nitrogen-fixing trees can overcome phosphorus limitation in tropical forests by synthesizing phosphatase enzymes to acquire soil organic phosphorus, but empirical evidence remains scarce. We evaluated whether nitrogen fixation and phosphatase activity are linked across 97 trees from seven species, and tested two hypotheses for explaining investment in nutrient strategies: trading nitrogen-for-phosphorus or balancing nutrient demand. Both strategies varied across species but were not explained by nitrogen-for-phosphorus trading or nutrient balance. This indicates that (1) studies of these nutrient strategies require broad sampling within and across species, (2) factors other than nutrient trading must be invoked to resolve the paradox of tropical nitrogen fixation, and (3) nitrogen-fixing trees cannot provide a positive nitrogen-phosphorus-carbon feedback to alleviate nutrient limitation of the tropical carbon sink. © 2018 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
英文关键词	Biodiversity; biogeochemical niche; biogeochemistry; nitrogen; nutrient acquisition; nutrient limitation; nutrient strategy; phosphorus; tropical carbon sink
语种	英语
scopus关键词	nitrogen; phosphatase; phosphorus; nitrogen fixation; rain forest; soil; species difference; tree; tropic climate; Nitrogen; Nitrogen Fixation; Nutrients; Phosphoric Monoester Hydrolases; Phosphorus; Rainforest; Soil; Species Specificity; Trees; Tropical Climate
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121241
作者单位	School of Geography and Priestley International Centre for Climate, University of Leeds, Leeds, United Kingdom; Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, United States; Smithsonian Tropical Research Institute, Ancon, Panama; ForestGEO, Smithsonian Tropical Research Institute, Ancon, Panama; University of Freiburg, Freiburg, Germany; Yale-NUS College, Singapore; Department of Biological Sciences, National University of Singapore, Singapore
推荐引用方式 GB/T 7714	Batterman S.A.,Hall J.S.,Turner B.L.,et al. Phosphatase activity and nitrogen fixation reflect species differences, not nutrient trading or nutrient balance, across tropical rainforest trees[J],2018,21(10).
APA	Batterman S.A..,Hall J.S..,Turner B.L..,Hedin L.O..,LaHaela Walter J.K..,...&van Breugel M..(2018).Phosphatase activity and nitrogen fixation reflect species differences, not nutrient trading or nutrient balance, across tropical rainforest trees.Ecology Letters,21(10).
MLA	Batterman S.A.,et al."Phosphatase activity and nitrogen fixation reflect species differences, not nutrient trading or nutrient balance, across tropical rainforest trees".Ecology Letters 21.10(2018).