Heterotrophic Respiration and the Divergence of Productivity and Carbon Sequestration

被引：9

作者：

Noormets, Asko ^{[1
]}

Bracho, Rosvel ^{[2
]}

Ward, Eric ^{[3
]}

Seiler, John ^{[4
]}

Strahm, Brian ^{[4
]}

Lin, Wen ^{[5
]}

McElligott, Kristin ^{[4
]}

Domec, Jean-Christophe ^{[7
]}

Gonzalez-Benecke, Carlos ^{[8
]}

Jokela, Eric J. ^{[2
]}

Markewitz, Daniel ^{[6
]}

Meek, Cassandra ^{[9
]}

Miao, Guofang ^{[10
]}

McNulty, Steve G. ^{[11
]}

King, John S. ^{[12
]}

Samuelson, Lisa ^{[13
]}

Sun, Ge ^{[11
]}

Teskey, Robert ^{[6
]}

Vogel, Jason ^{[2
]}

Will, Rodney ^{[9
]}

Yang, Jinyan ^{[14
]}

Martin, Timothy A. ^{[2
]}

机构：

[1] Texas A&M Univ, Dept Ecol & Conservat Biol, College Stn, TX 77834 USA

[2] Univ Florida, Sch Forest Resources & Conservat, Gainesville, FL 32611 USA

[3] US Geol Survey, Lafayette, LA USA

[4] Virginia Tech, Dept Forest Resources & Environm Conservat, Blacksburg, VA USA

[5] Shenzhen Univ, Coll Life Sci & Oceanog, Shenzhen, Guangdong, Peoples R China

[6] Univ Georgia, Warnell Sch Forestry & Nat Resources, Athens, GA 30602 USA

[7] Bordeaux Sci Agro, Gradignan, France

[8] Oregon State Univ, Dept Forest Engn Resources & Management, Corvallis, OR 97331 USA

[9] Oklahoma State Univ, Dept Nat Resource Ecol & Management, Stillwater, OK 74078 USA

[10] Fujian Normal Univ, Sch Geog Sci, Fuzhou, Fujian, Peoples R China

[11] US Forest Serv, Eastern Forest Environm Threat Assessment Ctr, USDA, Res Triangle Pk, NC USA

[12] North Carolina State Univ, Dept Forestry & Environm Resources, Raleigh, NC USA

[13] Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL 36849 USA

[14] Nanjing Forestry Univ, Coll Biol & Environm, Nanjing, Peoples R China

来源：

GEOPHYSICAL RESEARCH LETTERS | 2021年 / 48卷 / 07期

基金：

美国食品与农业研究所;

关键词：

carbon sequestration; drought; fertilization; heterotrophic respiration; net ecosystem production; net primary production; NET PRIMARY PRODUCTION; LOBLOLLY-PINE; SOIL RESPIRATION; AUTOTROPHIC RESPIRATION; MYCORRHIZAL RESPONSES; WATER-USE; DROUGHT; FOREST; FERTILIZATION; NITROGEN;

D O I：

10.1029/2020GL092366

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Net primary productivity (NPP) and net ecosystem production (NEP) are often used interchangeably, as their difference, heterotrophic respiration (soil heterotrophic CO2 efflux, R-SH = NPP-NEP), is assumed a near-fixed fraction of NPP. Here, we show, using a range-wide replicated experimental study in loblolly pine (Pinus taeda) plantations that R-SH responds differently than NPP to fertilization and drought treatments, leading to the divergent responses of NPP and NEP. Across the natural range of the species, the moderate responses of NPP (+11%) and R-SH (-7%) to fertilization combined such that NEP increased nearly threefold in ambient control and 43% under drought treatment. A 13% decline in R-SH under drought led to a 26% increase in NEP while NPP was unaltered. Such drought benefit for carbon sequestration was nearly twofold in control, but disappeared under fertilization. Carbon sequestration efficiency, NEP:NPP, varied twofold among sites, and increased up to threefold under both drought and fertilization.

引用

页数：10

共 53 条

[11] FAO, 2012, STAT WORLDS FOR 2012
[12] Fernández-Martínez M, 2014, NAT CLIM CHANGE, V4, P471, DOI [10.1038/nclimate2177, 10.1038/NCLIMATE2177]
[13] Tree nutrition and forest fertilization of pine plantations in the southern United States
Fox, Thomas R.
Allen, H. Lee
Albaugh, Timothy J.
Rubilar, Rafael
Carlson, Colleen A.
[J]. SOUTHERN JOURNAL OF APPLIED FORESTRY, 2007, 31 (01): : 5 - 11
[14] Transformation of the nitrogen cycle: Recent trends, questions, and potential solutions
Galloway, James N.
Townsend, Alan R.
Erisman, Jan Willem
Bekunda, Mateete
Cai, Zucong
Freney, John R.
Martinelli, Luiz A.
Seitzinger, Sybil P.
Sutton, Mark A.
[J]. SCIENCE, 2008, 320 (5878) : 889 - 892
[15] Mycorrhizal hyphal turnover as a dominant process for carbon input into soil organic matter
Godbold, Douglas L.
Hoosbeek, Marcel R.
Lukac, Martin
Cotrufo, M. Francesca
Janssens, Ivan A.
Ceulemans, Reinhart
Polle, Andrea
Velthorst, Eef J.
Scarascia-Mugnozza, Giuseppe
De Angelis, Paolo
Miglietta, Franco
Peressotti, Alessandro
[J]. PLANT AND SOIL, 2006, 281 (1-2) : 15 - 24
[16] Regional validation and improved parameterization of the 3-PG model for Pinus taeda stands
Gonzalez-Benecke, Carlos A.
Teskey, Robert O.
Martin, Timothy A.
Jokela, Eric J.
Fox, Thomas R.
Kane, Michael B.
Noormets, Asko
[J]. FOREST ECOLOGY AND MANAGEMENT, 2016, 361 : 237 - 256
[17] Local and general above-stump biomass functions for loblolly pine and slash pine trees
Gonzalez-Benecke, Carlos A.
Gezan, Salvador A.
Albaugh, Timothy J.
Allen, H. Lee
Burkhart, Harold E.
Fox, Thomas R.
Jokela, Eric J.
Maier, Chris A.
Martin, Timothy A.
Rubilar, Rafael A.
Samuelson, Lisa J.
[J]. FOREST ECOLOGY AND MANAGEMENT, 2014, 334 : 254 - 276
[18] Hansen MC, 2013, SCIENCE, V342, P850, DOI [10.1126/science.1244693, 10.1126/science.1215904]
[19] Reduced throughfall decreases autotrophic respiration, but not heterotrophic respiration in a dry temperate broadleaved evergreen forest
Hinko-Najera, Nina
Fest, Benedikt
Livesley, Stephen J.
Arndt, Stefan K.
[J]. AGRICULTURAL AND FOREST METEOROLOGY, 2015, 200 : 66 - 77
[20] Autotrophic and heterotrophic soil respiration responds asymmetrically to drought in a subtropical forest in the Southeast China
Huang, Shide
Ye, Gongfu
Lin, Jie
Chen, Kaituan
Xu, Xia
Ruan, Honghua
Tan, Fanglin
Chen, Han Y. H.
[J]. SOIL BIOLOGY & BIOCHEMISTRY, 2018, 123 : 242 - 249

← 1 2 3 4 5 6 →