Isotopic evidence for oligotrophication of terrestrial ecosystems
Craine, Joseph M.1; Elmore, Andrew J.2; Wang, Lixin3; Aranibar, Julieta4; Bauters, Marijn5,6; Boeckx, Pascal5; Crowley, Brooke E.7,8; Dawes, Melissa A.9; Delzon, Sylvain10; Fajardo, Alex11; Fang, Yunting12; Fujiyoshi, Lei13; Gray, Alan14; Guerrieri, Rossella15; Gundale, Michael J.16; Hawke, David J.17; Hietz, Peter18; Jonard, Mathieu19; Kearsley, Elizabeth20; Kenzo, Tanaka21; Makarov, Mikhail22; Maranon-Jimenez, Sara23,24,25; McGlynn, Terrence P.26,27; McNeil, Brenden E.28; Mosher, Stella G.7; Nelson, David M.2; Peri, Pablo L.29; Roggy, Jean Christophe30; Sanders-DeMott, Rebecca31,32; Song, Minghua33; Szpak, Paul34; Templer, Pamela H.31; Van der Colff, Dewidine35; Werner, Christiane36; Xu, Xingliang32; Yang, Yang37; Yu, Guirui33,38; Zmudczynska-Skarbek, Katarzyna39

Human societies depend on an Earth system that operates within a constrained range of nutrient availability, yet the recent trajectory of terrestrial nitrogen (N) availability is uncertain. Examining patterns of foliar N concentrations and isotope ratios (delta N-15) from more than 43,000 samples acquired over 37 years, here we show that foliar N concentration declined by 9% and foliar delta N-15 declined by 0.6-1.6 parts per thousand. Examining patterns across different climate spaces, foliar delta N-15 declined across the entire range of mean annual temperature and mean annual precipitation tested. These results suggest declines in N supply relative to plant demand at the global scale. In all, there are now multiple lines of evidence of declining N availability in many unfertilized terrestrial ecosystems, including declines in delta N-15 of tree rings and leaves from herbarium samples over the past 75-150 years. These patterns are consistent with the proposed consequences of elevated atmospheric carbon dioxide and longer growing seasons. These declines will limit future terrestrial carbon uptake and increase nutritional stress for herbivores.

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Document Type期刊论文
Corresponding AuthorCraine, Joseph M.
Affiliation1.Jonah Ventures, Boulder, CO 80301 USA
2.Univ Maryland, Ctr Environm Sci, Appalachian Lab, Frostburg, MD USA
3.Indiana Univ Purdue Univ, Dept Earth Sci, Indianapolis, IN 46202 USA
4.Consejo Nacl Invest Cient & Tecn, Inst Argentino Nivol Glaciol & Ciencias Ambiental, UNCuyo, FCEN, Mendoza, Argentina
5.Univ Ghent, MB Isotope Biosci Lab ISOFYS, Ghent, Belgium
6.Univ Ghent, CAVElab, Computat & Appl Vegetat Ecol, Ghent, Belgium
7.Univ Cincinnati, Dept Geol, Cincinnati, OH USA
8.Univ Cincinnati, Dept Anthropol, Cincinnati, OH USA
9.Swiss Fed Inst Forest Snow & Landscape Res, WSL Forest Soils & Biogeochem, Birmensdorf, Switzerland
10.Univ Bordeaux, BIOGECO, INRA, Pessac, France
11.Ctr Invest Ecosistemas Patagonia, Coyhaique, Chile
12.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China
13.Res Inst Humanity & Nat, Kyoto, Japan
14.NERC Ctr Ecol & Hydrol, Penicuik, Midlothian, Scotland
15.Ctr Ecol Res & Forestry Applicat, Barcelona, Spain
16.Swedish Univ Agr Sci, Dept Forest Ecol & Management, Umea, Sweden
17.Ara Inst Canterbury, Dept Sci & Primary Ind, Christchurch, New Zealand
18.Univ Nat Resources & Life Sci, Inst Bot, Vienna, Austria
19.Catholic Univ Louvain, Earth & Life Inst, Louvain La Neuve, Belgium
20.Univ Ghent, Dept Environm, Computat & Appl Vegetat Ecol Lab, Ghent, Belgium
21.Forestry & Forest Prod Res Inst, Dept Plant Ecol, Tsukuba, Ibaraki, Japan
22.Moscow MV Lomonosov State Univ, Soil Sci Dept, Moscow, Russia
23.Univ Granada, Fac Sci, Dept Ecol, Granada, Spain
24.CREAF, Barcelona, Spain
25.UAB, CSIC, Global Ecol Unit, CREAF, Barcelona, Spain
26.Calif State Univ Dominguez Hills, Dept Biol, Carson, CA 90747 USA
27.Nat Hist Museum Los Angeles Cty, Dept Entomol, Los Angeles, CA USA
28.West Virginia Univ, Dept Geol & Geog, Morgantown, WV USA
29.Univ Nacl Patagonia Austral, CONICET, Inst Nacl Tecnol Agr, Rio Gallegos, Argentina
30.INRA, UMR Ecol Forets Guyane, Campus Agron, Kourou, French Guiana
31.Boston Univ, Dept Biol, 5 Cummington St, Boston, MA 02215 USA
32.Univ New Hampshire, Dept Nat Resources & Environm, Durham, NH 03824 USA
33.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
34.Trent Univ, Dept Anthropol, Peterborough, ON, Canada
35.South African Natl Biodivers Inst, Cape Town, South Africa
36.Univ Freiburg, Ecosyst Physiol, Freiburg, Germany
37.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming, Yunnan, Peoples R China
38.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
39.Univ Gdansk, Fac Biol, Dept Vertebrate Ecol & Zool, Gdansk, Poland
Recommended Citation
GB/T 7714
Craine, Joseph M.,Elmore, Andrew J.,Wang, Lixin,et al. Isotopic evidence for oligotrophication of terrestrial ecosystems[J]. NATURE ECOLOGY & EVOLUTION,2018,2(11):1735-1744.
APA Craine, Joseph M..,Elmore, Andrew J..,Wang, Lixin.,Aranibar, Julieta.,Bauters, Marijn.,...&Zmudczynska-Skarbek, Katarzyna.(2018).Isotopic evidence for oligotrophication of terrestrial ecosystems.NATURE ECOLOGY & EVOLUTION,2(11),1735-1744.
MLA Craine, Joseph M.,et al."Isotopic evidence for oligotrophication of terrestrial ecosystems".NATURE ECOLOGY & EVOLUTION 2.11(2018):1735-1744.
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