A Review of the Available Land Cover and Cropland Maps for South Asia

Patil, P and Gumma, M K (2018) A Review of the Available Land Cover and Cropland Maps for South Asia. Agriculture (TSI), 8 (7) (11). pp. 1-22. ISSN 2077-0472

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A lack of accuracy, uniqueness and the absence of systematic classification of cropland categories, together with long-pending updates of cropland mapping, are the primary challenges that need to be addressed in developing high-resolution cropland maps for south Asia. In this review, we analyzed the details of the available land cover and cropland maps of south Asia on national and regional scales in south Asia and on a global scale. Here, we highlighted the methodology adopted for classification, datasets used, classification system used for classifying different land covers and croplands and the resolution of datasets available. This listed review of different available datasets can help the reader to know which datasets to be used in their study and to understand which methodology to be chosen to further developing the accurate high-resolution land cover and cropland maps for advanced studies and for better understanding of ground reality in a timely updated version. We tried to identify the major concerns, particularly the inadequacy of knowledge regarding the spatial distribution of major crop types within south Asia, which hinder policy and strategic investment and delay the efforts to improve food security for a rapidly growing human population at a time of constant market instability and changing global climate. The overall focus of this paper is on reviewing the need for timely updated high-resolution cropland maps of south Asia.

Item Type: Article
Divisions: Research Program : Innovation Systems for the Drylands (ISD)
CRP: CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC)
CGIAR Research Program on Water, Land and Ecosystems (WLE)
Uncontrolled Keywords: South Asia; croplands; land cover; high resolution; classification; global land cover, cropland maps
Subjects: Others > GIS Techniques/Remote Sensing
Others > South Asia
Others > Cropping and Farming Systems
Depositing User: Mr Ramesh K
Date Deposited: 10 Jul 2018 05:29
Last Modified: 19 Feb 2019 10:18
URI: http://oar.icrisat.org/id/eprint/10788
Official URL: http://dx.doi.org/10.3390/agriculture8070111
Acknowledgement: Funding: This work was undertaken as part of the CGIAR Research Programs onWater, Land and Ecosystems (WLE) led by InternationalWater Management Institute (IWMI) and CGIAR Research Programs on Grain Legumes and Dryland Cereals (GLDC). Acknowledgments: The authors thank Anthony Whitbread, Program leader, ISD, ICRISAT, and Ms Smitha Sitaraman, Science Editor, ICRISAT, for editing this article. Authors are thankful to anonymous reviewers for their valuable comments and suggestions.
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