Diverse anthropogenic disturbances shift Amazon forests along a structural spectrum

被引：8

作者：

Smith, Marielle N. ^{[1
,2
]}

Stark, Scott C. ^{[1
]}

Taylor, Tyeen C. ^{[3
]}

Schietti, Juliana ^{[4
,5
]}

de Almeida, Danilo Roberti Alves ^{[6
]}

Aragon, Susan ^{[7
]}

Torralvo, Kelly ^{[5
]}

Lima, Albertina P. ^{[5
]}

de Oliveira, Gabriel ^{[8
]}

de Assis, Rafael Leandro ^{[5
,9
]}

Leitold, Veronika ^{[10
]}

Pontes-Lopes, Aline ^{[11
]}

Scoles, Ricardo

Vieira, Luciana Cristina de Sousa ^{[12
]}

Resende, Angelica Faria

Coppola, Alysha, I ^{[13
]}

Brandao, Diego Oliveira ^{[5
]}

Silva Junior, Joao de Athaydes ^{[14
]}

Lobato, Laura F. ^{[7
]}

Freitas, Wagner ^{[7
]}

Almeida, Daniel ^{[7
]}

Souza, Mendell S. ^{[7
]}

Minor, David M. ^{[10
]}

Villegas, Juan Camilo ^{[15
]}

Law, Darin J. ^{[16
]}

Goncalves, Nathan ^{[1
]}

da Rocha, Daniel Gomes ^{[17
,18
]}

Guedes, Marcelino Carneiro ^{[19
]}

Tonini, Helio ^{[20
]}

da Silva, Katia Emidio ^{[21
]}

van Haren, Joost ^{[22
,23
]}

Rosa, Diogo Martins ^{[5
]}

do Valle, Dalton Freitas ^{[5
]}

Cordeiro, Carlos Leandro ^{[24
]}

de Lima, Nicolas Zaslavsky

Shao, Gang ^{[1
,25
]}

Menor, Imma Oliveras ^{[26
]}

Conti, Georgina ^{[27
]}

Florentino, Ana Paula ^{[5
]}

Montti, Lia ^{[28
]}

Aragao, Luiz E. O. C. ^{[11
]}

McMahon, Sean M. ^{[29
]}

Parker, Geoffrey G. ^{[29
]}

Breshears, David D. ^{[30
]}

Da Costa, Antonio Carlos Lola ^{[14
]}

Magnusson, William E. ^{[5
]}

Mesquita, Rita ^{[5
]}

Camargo, Jose Luis C. ^{[5
]}

de Oliveira, Raimundo C. ^{[31
]}

de Camargo, Plinio B. ^{[32
]}

机构：

[1] Michigan State Univ, Dept Forestry, E Lansing, MI 48824 USA

[2] Bangor Univ, Coll Environm Sci & Engn, Sch Nat Sci, Bangor, Wales

[3] Univ Michigan, Dept Civil & Environm Engn, Ann Arbor, MI USA

[4] Univ Fed Amazonas, Dept Biol, Manaus, Brazil

[5] Inst Nacl de Pesquisas da Amazonia, Manaus, Brazil

[6] Univ Sao Paulo, Luiz Queiroz Coll Agr, Dept Forest Sci, Piracicaba, Brazil

[7] Univ Fed Oeste, Programa Pos Grad Recursos Nat Amazonia, Santarem, Brazil

[8] Univ S Alabama, Dept Earth Sci, Mobile, AL USA

[9] Univ Oslo, Nat Hist Museum, Oslo, Norway

[10] Univ Maryland, Dept Geog Sci, College Pk, MD USA

[11] Inst Nacl Pesquisas Espaciais, Div Observacao Terra & Geoinformat, Sao Jose Dos Campos, Brazil

[12] Inst Nacl Pesquisas Espaciais, Eusebio, Brazil

[13] Swiss Fed Inst Technol, Geol Inst Biogeosci, Zurich, Switzerland

[14] Univ Fed Para, Fac Meteorol, Inst Geociencias, Belem, Brazil

[15] Univ Antioquia, Fac Ingn, Grp Invest Ecol Aplicada, Medellin, Colombia

[16] Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ USA

[17] Univ Calif Davis, Dept Wildlife Fish & Conservat Biol, Grad Grp Ecol, Davis, CA USA

[18] Inst Desenvolvimento Sustentavel Mamiraua, Grp Ecol & Conservacao Felinos Amazonia, Tefe, Brazil

[19] Embrapa Amapa, Macapa, Brazil

[20] Embrapa Pecuaria, Bage, Brazil

[21] Embrapa Amazonia Ocidental, Manaus, Brazil

[22] Univ Arizona, Biosphere 2, Tucson, AZ USA

[23] Univ Arizona, Honors Coll, Tucson, AZ USA

[24] Inst Int Sustentabilidade, Rio De Janeiro, Brazil

[25] Purdue Univ Lib, Sch Informat Studies, W Lafayette, IN USA

[26] Univ Oxford, Environm Change Inst, Sch Geog & Environm, Oxford, England

[27] Univ Nacl Cordoba, Inst Multidisciplinario Biol Vegetal, Cordoba, Argentina

[28] Univ Nacl Mar del Plata, Inst Invest Marinas & Costeras, Inst Geol Costas & Cuaternario, CONICET, Mar Del Plata, Argentina

[29] Smithsonian Environm Res Ctr, Edgewater, MD USA

[30] Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ USA

[31] Embrapa Amazonia Oriental, Santarem, Brazil

[32] Univ Sao Paulo, Ctr Energia Nucl Agr, Lab Ecol Isotop, Piracicaba, Brazil

来源：

FRONTIERS IN ECOLOGY AND THE ENVIRONMENT | 2023年 / 21卷 / 01期

基金：

美国国家科学基金会; 瑞士国家科学基金会;

关键词：

DYNAMICS; CARBON; DEGRADATION; MECHANISM; DROUGHT; DIEBACK; STORAGE; IMPACT; LIGHT;

D O I：

10.1002/fee.2590

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Amazon forests are being degraded by myriad anthropogenic disturbances, altering ecosystem and climate function. We analyzed the effects of a range of land-use and climate-change disturbances on fine-scale canopy structure using a large database of profiling canopy lidar collected from disturbed and mature Amazon forest plots. At most of the disturbed sites, surveys were conducted 10-30 years after disturbance, with many exhibiting signs of recovery. Structural impacts differed in magnitude more than in character among disturbance types, producing a gradient of impacts. Structural changes were highly coordinated in a manner consistent across disturbance types, indicating commonalities in regeneration pathways. At the most severely affected site - burned igapo (seasonally flooded forest) - no signs of canopy regeneration were observed, indicating a sustained alteration of microclimates and consequently greater vulnerability to transitioning to a more open-canopy, savanna-like state. Notably, disturbances rarely shifted forests beyond the natural background of structural variation within mature plots, highlighting the similarities between anthropogenic and natural disturbance regimes, and indicating a degree of resilience among Amazon forests. Studying diverse disturbance types within an integrated analytical framework builds capacity to predict the risk of degradation-driven forest transitions.

引用

页码：24 / 32

页数：9

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