The extent of forest in dryland biomes

被引：357

作者：

Bastin, Jean-Francois ^{[1
,2
]}

Berrahmouni, Nora ^{[1
]}

Grainger, Alan ^{[3
]}

Maniatis, Danae ^{[4
,5
]}

Mollicone, Danilo ^{[1
]}

Moore, Rebecca ^{[6
]}

Patriarca, Chiara ^{[1
]}

Picard, Nicolas ^{[1
]}

Sparrow, Ben ^{[7
]}

Abraham, Elena Maria ^{[8
]}

Aloui, Kamel ^{[9
]}

Atesoglu, Ayhan ^{[10
]}

Attorre, Fabio ^{[11
]}

Bassullu, Caglar ^{[12
]}

Bey, Adia ^{[1
]}

Garzuglia, Monica ^{[1
]}

Garcia-Montero, Luis G. ^{[13
]}

Groot, Nikee ^{[3
]}

Guerin, Greg ^{[6
]}

Laestadius, Lars ^{[14
]}

Lowe, Andrew J. ^{[15
,16
]}

Mamane, Bako ^{[17
]}

Marchi, Giulio ^{[1
]}

Patterson, Paul ^{[18
]}

Rezende, Marcelo ^{[1
]}

Ricci, Stefano ^{[1
]}

Salcedo, Ignacio ^{[19
]}

Diaz, Alfonso Sanchez-Paus

Stolle, Fred ^{[20
]}

Surappaeva, Venera ^{[21
]}

Castro, Rene ^{[1
]}

机构：

[1] Food & Agr Org United Nat, Vialle Terme Caracalla, I-00153 Rome, Italy

[2] Univ Libre Bruxelles, Landscape Ecol & Plant Prod Syst Unit, CP264-2, B-1050 Brussels, Belgium

[3] Univ Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire, England

[4] Sch Geog & Environm, Environm Change Inst, South Parks Rd, Oxford OX1 3QY, England

[5] United Nat Dev Programme, Bur Policy & Programme Support, New York, NY 10017 USA

[6] Google, Mountain View, CA USA

[7] Univ Adelaide, Sch Biol Sci, Terr Ecosyst Res Network, Adelaide, SA 5005, Australia

[8] Consejo Nacl Invest Cient & Tecn, Inst Argentino Invest Zonas Aridas, Mendoza, Argentina

[9] Minist Agr, Gen Directorate Forests Inventory Serv, Tunis, Tunisia

[10] Bartin Univ, Dept Forest Engn, Fac Forestry, Bartin, Turkey

[11] Sapienza Univ Rome, Dept Environm Biol, Rome, Italy

[12] Food & Agr Org United Nat, Subreg Off Cent Asia, Ankara, Turkey

[13] Tech Univ Madrid UPM, Dept Forest & Environm Engn & Management, Escuela Tecn Super Ingn Montes, Ciudad Univ, Madrid 28040, Spain

[14] Swedish Univ Agr Sci, Dept Forest Ecol & Management, SE-90183 Umea, Sweden

[15] Univ Adelaide, Environm Inst, North Terrace, Adelaide, SA 5005, Australia

[16] Univ Adelaide, Sch Biol Sci, North Terrace, Adelaide, SA 5005, Australia

[17] Ctr Reg AGRHYMET, BP 11011, Niamey, Niger

[18] US Forest Serv, Interior West Forest Inventory & Anal, USDA, Ft Collins, CO USA

[19] Inst Nacl Semiarido, BR-10067 Bairro Serrotao, Brazil

[20] World Resources Inst, 10 G St NE, Washington, DC 20002 USA

[21] Dept Forest & Hunting Inventory Kyrgyztan, Bishkek, Kyrgyzstan

来源：

SCIENCE | 2017年 / 356卷 / 6338期

关键词：

BIODIVERSITY; WOODLANDS; IMAGERY;

D O I：

10.1126/science.aam6527

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：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

Dryland biomes cover two-fifths of Earth's land surface, but their forest area is poorly known. Here, we report an estimate of global forest extent in dryland biomes, based on analyzing more than 210,000 0.5-hectare sample plots through a photo-interpretation approach using large databases of satellite imagery at (i) very high spatial resolution and (ii) very high temporal resolution, which are available through the Google Earth platform. We show that in 2015, 1327 million hectares of drylands had more than 10% tree-cover, and 1079 million hectares comprised forest. Our estimate is 40 to 47% higher than previous estimates, corresponding to 467 million hectares of forest that have never been reported before. This increases current estimates of global forest cover by at least 9%.

引用

页码：635 / +

页数：4

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