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Potential marginal land resources of cassava worldwide: A data-driven analysis
Jiang, Dong1,2,3; Wang, Qian1,2; Ding, Fangyu1,2; Fu, Jingying1,2; Hao, Mengmeng1,2
2019-04-01
Source PublicationRENEWABLE & SUSTAINABLE ENERGY REVIEWS
ISSN1364-0321
Volume104Pages:167-173
Corresponding AuthorDing, Fangyu(dingfy.17b@igsnrr.ac.cn)
AbstractQuantitatively evaluating the potential marginal lands for cassava (Manihot esculenta Crantz) in previous studies has mostly been conducted at regional and national scales. However, at present, there is no reliable cassava marginal land assessment data on the global scale. By explicitly incorporating known samples with multicovariates, a boosted regression tree (BRT) modeling procedure was used to generate the first global potential marginal land distribution map of cassava with a 5 x 5 km spatial resolution grid. The total amount of potential marginal land resources suitable for cassava is approximately 1696.28 million hectares, mainly distributed across Central Africa, South America, Southeast Asia and North America. The estimated map reveals that the ecological zones suitable for cassava lie between the 30 degrees parallels and are even distributed at higher latitudes. Validation statistics indicate that the fitted BRT models obtain high performance with a tenfold cross-validation area under the curve (AUC) value of 0.962 [95% confidence interval (CI) 0.957-0.967]. The investigated patterns show that the relative contribution of land cover is 46.47% [95% CI 43.46-49.49%], followed by annual cumulative precipitation (35.96% [95% CI 33.29-38.62%]), minimum annual temperature (10.23% [95% CI 9.61-10.85%]), mean solar radiation (3.13% [95% CI 2.77-3.49%]) and maximum annual temperature (2.31% [95% CI 2.15-2.47%]). The results provide a baseline for understanding the potential distribution of marginal land resources viable for cassava worldwide.
KeywordPotential marginal lands Cassava BRT Relative contribution Baseline
DOI10.1016/j.rser.2019.01.024
WOS KeywordFUEL ETHANOL ; PLANT-GROWTH ; ENERGY ; BIOMASS ; MODEL
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41571509] ; Ministry of Science and Technology of China[2016YFC1201300]
Funding OrganizationNational Natural Science Foundation of China ; Ministry of Science and Technology of China
WOS Research AreaScience & Technology - Other Topics ; Energy & Fuels
WOS SubjectGreen & Sustainable Science & Technology ; Energy & Fuels
WOS IDWOS:000458294500013
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/49372
Collection中国科学院地理科学与资源研究所
Corresponding AuthorDing, Fangyu
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, 11A Datun Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Minist Land & Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Dong,Wang, Qian,Ding, Fangyu,et al. Potential marginal land resources of cassava worldwide: A data-driven analysis[J]. RENEWABLE & SUSTAINABLE ENERGY REVIEWS,2019,104:167-173.
APA Jiang, Dong,Wang, Qian,Ding, Fangyu,Fu, Jingying,&Hao, Mengmeng.(2019).Potential marginal land resources of cassava worldwide: A data-driven analysis.RENEWABLE & SUSTAINABLE ENERGY REVIEWS,104,167-173.
MLA Jiang, Dong,et al."Potential marginal land resources of cassava worldwide: A data-driven analysis".RENEWABLE & SUSTAINABLE ENERGY REVIEWS 104(2019):167-173.
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