Savanna Vegetation-Fire-Climate Relationships Differ Among Continents

被引：491

作者：

Lehmann, Caroline E. R. ^{[1
,2
]}

Anderson, T. Michael ^{[3
]}

Sankaran, Mahesh ^{[4
,5
]}

Higgins, Steven I. ^{[6
,7
]}

Archibald, Sally ^{[8
,9
]}

Hoffmann, William A. ^{[10
]}

Hanan, Niall P. ^{[11
]}

Williams, Richard J.

Fensham, Roderick J. ^{[12
]}

Felfili, Jeanine ^{[13
]}

Hutley, Lindsay B. ^{[14
]}

Ratnam, Jayashree ^{[4
]}

San Jose, Jose ^{[15
]}

Montes, Ruben ^{[16
]}

Franklin, Don ^{[14
]}

Russell-Smith, Jeremy ^{[14
]}

Ryan, Casey M. ^{[2
]}

Durigan, Giselda ^{[17
]}

Hiernaux, Pierre ^{[18
]}

Haidar, Ricardo ^{[13
]}

Bowman, David M. J. S. ^{[19
]}

Bond, William J. ^{[20
]}

机构：

[1] Macquarie Univ, Dept Biol Sci, N Ryde, NSW 2109, Australia

[2] Univ Edinburgh, Sch GeoSci, Edinburgh EH9 3JN, Midlothian, Scotland

[3] Wake Forest Univ, Dept Biol, Winston Salem, NC 27109 USA

[4] Tata Inst Fundamental Res, Gandhi Krishi Vignana Kendra, Natl Ctr Biol Sci, Bangalore 560065, Karnataka, India

[5] Univ Leeds, Sch Biol, Leeds LS2 9JT, W Yorkshire, England

[6] Goethe Univ Frankfurt, Inst Phys Geog, D-60438 Frankfurt, Germany

[7] Univ Otago, Dept Bot, Dunedin 9054, New Zealand

[8] CSIR, Pretoria, South Africa

[9] Univ Witwatersrand, Sch Anim Plant & Environm Sci, ZA-2050 Johannesburg, South Africa

[10] N Carolina State Univ, Dept Plant Biol, Raleigh, NC 27695 USA

[11] S Dakota State Univ, Geog Informat Sci Ctr Excellence, Brookings, SD 57007 USA

[12] Univ Queensland, Sch Biol Sci, Brisbane, Qld 4072, Australia

[13] Univ Brasilia, Forestry Dept, BR-70919970 Brasilia, DF, Brazil

[14] Charles Darwin Univ, Res Inst Environm & Livelihoods, Casuarina, NT 0810, Australia

[15] Inst Venezolano Invest Cient, Ctr Ecol, Caracas 1020A, Venezuela

[16] Univ Simon Bolivar, Dept Estudios Ambientales, Caracas 1080A, Venezuela

[17] Inst Florestal, Lab Ecol & Hidrol Florestal, BR-19802970 Assis, SP, Brazil

[18] Univ Toulouse, CNRS, Geosci Environm Toulouse Observ Midi Pyrenees, F-31401 Toulouse, France

[19] Univ Tasmania, Sch Plant Sci, Hobart, Tas 7001, Australia

[20] Univ Cape Town, Dept Bot, ZA-7700 Rondebosch, South Africa

来源：

SCIENCE | 2014年 / 343卷 / 6170期

基金：

美国国家科学基金会;

关键词：

GLOBAL VEGETATION; C-4; GRASSLANDS; TERRESTRIAL; DETERMINANTS; DYNAMICS; ECOLOGY; FOREST; TREES;

D O I：

10.1126/science.1247355

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Ecologists have long sought to understand the factors controlling the structure of savanna vegetation. Using data from 2154 sites in savannas across Africa, Australia, and South America, we found that increasing moisture availability drives increases in fire and tree basal area, whereas fire reduces tree basal area. However, among continents, the magnitude of these effects varied substantially, so that a single model cannot adequately represent savanna woody biomass across these regions. Historical and environmental differences drive the regional variation in the functional relationships between woody vegetation, fire, and climate. These same differences will determine the regional responses of vegetation to future climates, with implications for global carbon stocks.

引用

页码：548 / 552

页数：5

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