Mapping Direct Seeded Rice in Raichur District of Karnataka, India

Gumma, M K and Uppala, D and Mohammed, I A and Whitbread, A M and Mohammed, I R (2015) Mapping Direct Seeded Rice in Raichur District of Karnataka, India. Photogrammetric engineering and remote sensing, 81 (11). pp. 873-880. ISSN 0099-1112

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Abstract

Across South Asia, the cost of rice cultivation has increased due to labor shortage. Direct seeding of rice is widely promoted in order to reduce labor demand during crop establishment stage, and to benefit poor farmers. To facilitate planning and to track farming practice changes, this study presents techniques to spatially distinguish between direct seeded and transplanted rice fields using multiple-sensor remote sensing imagery. The District of Raichur, a major region in northeast Karnataka, Central India, where irrigated rice is grown and direct seeded rice has been widely promoted since 2000, was selected as a case study. The extent of cropland was mapped using Landsat-8, Moderate Resolution Imaging Spectroradiometer (modis) 16-day normalized difference vegetation index (ndvi) time-series data and the cultivation practice delineated using risat-1 data for the year 2014. Areas grown to rice were mapped based on the length of the growing period detected using spectral characteristics and intensive field observations. The high resolution imagery of Landsat-8 was useful to classify the rice growing areas. The accuracy of land-use/landcover (lulc) classes varied from 84 percent to 98 percent. The results clearly demonstrated the usefulness of multiple-sensor imagery from mod09q1, Landsat-8, and risat-1 in mapping the rice area and practices accurately, routinely, and consistently. The low cost of imagery backed by ground survey, as demonstrated in this paper, can also be used across rice growing countries to identify different rice systems.

Item Type:	Article
Divisions:	RP-Resilient Dryland Systems
CRP:	CGIAR Research Program on Dryland Systems
Uncontrolled Keywords:	Raichur, Karnataka, Mapping, Rice, Direct Seeded Rice, Mapping
Subjects:	Others > Agriculture-Farming, Production, Technology, Economics
Depositing User:	Mr Ramesh K
Date Deposited:	14 Dec 2015 07:52
Last Modified:	19 Aug 2016 04:10
URI:	http://oar.icrisat.org/id/eprint/9183
Official URL:	http://dx.doi.org/10.14358/PERS.81.11.873
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Google Scholar

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