Mapping global cropland and field size

被引：419

作者：

Fritz, Steffen ^{[1
]}

See, Linda ^{[1
]}

McCallum, Ian ^{[1
]}

You, Liangzhi ^{[2
,3
]}

Bun, Andriy ^{[1
]}

Moltchanova, Elena ^{[1
,4
]}

Duerauer, Martina ^{[1
]}

Albrecht, Fransizka ^{[5
,6
]}

Schill, Christian ^{[7
]}

Perger, Christoph ^{[1
]}

Havlik, Petr ^{[1
]}

Mosnier, Aline ^{[1
]}

Thornton, Philip ^{[8
]}

Wood-Sichra, Ulrike ^{[3
]}

Herrero, Mario ^{[9
]}

Becker-Reshef, Inbal ^{[10
]}

Justice, Chris ^{[10
]}

Hansen, Matthew ^{[10
]}

Gong, Peng ^{[11
]}

Aziz, Sheta Abdel ^{[12
]}

Cipriani, Anna ^{[13
,14
]}

Cumani, Renato ^{[15
]}

Cecchi, Giuliano ^{[16
]}

Conchedda, Giulia ^{[15
]}

Ferreira, Stefanus ^{[17
]}

Gomez, Adriana ^{[18
]}

Haffani, Myriam ^{[19
]}

Kayitakire, Francois ^{[20
]}

Malanding, Jaiteh ^{[14
]}

Mueller, Rick ^{[21
]}

Newby, Terence ^{[22
]}

Nonguierma, Andre ^{[23
]}

Olusegun, Adeaga ^{[24
]}

Ortner, Simone ^{[25
]}

Rajak, D. Ram ^{[26
]}

Rocha, Jansle ^{[27
]}

Schepaschenko, Dmitry ^{[1
]}

Schepaschenko, Maria ^{[28
]}

Terekhov, Alexey ^{[29
]}

Tiangwa, Alex ^{[30
]}

Vancutsem, Christelle ^{[20
]}

Vintrou, Elodie ^{[31
]}

Wu Wenbin ^{[32
]}

van der Velde, Marijn ^{[1
]}

Dunwoody, Antonia ^{[1
]}

Kraxner, Florian ^{[1
]}

Obersteiner, Michael ^{[1
]}

机构：

[1] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria

[2] Chinese Acad Agr Sci, Key Lab Agri Informat, Minist Agr, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China

[3] Int Food Policy Res Inst, Washington, DC 20006 USA

[4] Univ Canterbury, Sch Math & Stat, Christchurch 8140, New Zealand

[5] GeoVille GmbH, Innsbruck, Austria

[6] Univ Vienna, Dept Geog & Reg Res, Vienna, Austria

[7] Univ Freiburg, D-79106 Freiburg, Germany

[8] Int Livestock Res Inst, CGIAR Res Programme Climate Change Agr & Food Sec, Nairobi 00100, Kenya

[9] CSIRO, St Lucia, Qld 4068, Australia

[10] Univ Maryland, Dept Geog, College Pk, MD 20742 USA

[11] Tsinghua Univ, Ctr Earth Syst Sci, Minist Educ Lab Earth Syst Modeling, Beijing 100084, Peoples R China

[12] Ain Shams Univ, Fac Agr, Cairo, Egypt

[13] Univ Modena & Reggio Emilia, Dipartimento Sci Chim & Geol, I-41121 Modena, Italy

[14] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA

[15] Food & Agr Org UN, I-00100 Rome, Italy

[16] Subreg Off Eastern Africa, Food & Agr Org UN, Addis Ababa, Ethiopia

[17] GeoTerraImage Pty Ltd, ZA-0184 Pretoria, South Africa

[18] Univ Nat Resources & Life Sci BOKU, Vienna, Austria

[19] Ctr Natl Cartog & Teledetect, Tunis, Tunisia

[20] European Commiss JRC, Joint Res Ctr, Ispra, VA USA

[21] USDA NASS, Fairfax, VA 22030 USA

[22] Agr Res Council, ZA-0001 Pretoria, South Africa

[23] UNECA, Addis Ababa, Ethiopia

[24] Univ Lagos, Dept Geog, Lagos, Nigeria

[25] Univ Appl Sci, Wiener Neustadt, Austria

[26] Space Applicat Ctr ISRO, Ahmadabad 380015, Gujarat, India

[27] Univ Estadual Campinas, Sch Agr Engn, Geoproc Lab, Campinas, SP, Brazil

[28] Russian Inst Continuous Educ Forestry, Pushchino, Russia

[29] Inst Space Res, UA-50010 Almaty, Ukraine

[30] South Sudan Natl Bur Stat, South Sudan Food Secur Tech Secretariat, Juba, South Sudan, Sudan

[31] CIRAD, Maison Teledetect, F-34090 Montpellier, France

[32] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China

来源：

GLOBAL CHANGE BIOLOGY | 2015年 / 21卷 / 05期

关键词：

agricultural intensity; cropland; data fusion; field size; land cover; synergy map; FOOD SECURITY; LAND; CLIMATE; ACCURACY; BILLION; SET;

D O I：

10.1111/gcb.12838

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

A new 1km global IIASA-IFPRI cropland percentage map for the baseline year 2005 has been developed which integrates a number of individual cropland maps at global to regional to national scales. The individual map products include existing global land cover maps such as GlobCover 2005 and MODIS v.5, regional maps such as AFRICOVER and national maps from mapping agencies and other organizations. The different products are ranked at the national level using crowdsourced data from Geo-Wiki to create a map that reflects the likelihood of cropland. Calibration with national and subnational crop statistics was then undertaken to distribute the cropland within each country and subnational unit. The new IIASA-IFPRI cropland product has been validated using very high-resolution satellite imagery via Geo-Wiki and has an overall accuracy of 82.4%. It has also been compared with the EarthStat cropland product and shows a lower root mean square error on an independent data set collected from Geo-Wiki. The first ever global field size map was produced at the same resolution as the IIASA-IFPRI cropland map based on interpolation of field size data collected via a Geo-Wiki crowdsourcing campaign. A validation exercise of the global field size map revealed satisfactory agreement with control data, particularly given the relatively modest size of the field size data set used to create the map. Both are critical inputs to global agricultural monitoring in the frame of GEOGLAM and will serve the global land modelling and integrated assessment community, in particular for improving land use models that require baseline cropland information. These products are freely available for downloading from the website.

引用

页码：1980 / 1992

页数：13

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