期刊
COMPUTERS & GEOSCIENCES
卷 41, 期 -, 页码 108-118出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cageo.2011.08.020
关键词
Cotton; GIS; Landforms; Ringnabodi watershed; Soils; Soil suitability
In this study an attempt was made to characterize the soils of the Ringanbodi watershed, Nagpur district, Maharashtra, Central India, for soil-suitability evaluation for cotton using geographic information system (GIS)-based multicriteria overlay analysis techniques. The study shows that 8 soil series and 16 soil series associations in the study area and soils were classified into three orders, i.e., Entisol, Inceptisol, and Vertisol. The analysis reveals that the soil associations E-F, F-G, G-H, and H-G are moderately suitable (S2), D-E are marginally to moderately suitable, and C-D are marginally (S3) suitable. However, soils B-C are not suitable to marginally suitable (N2-S3) and A-B are unsuitable (N2) for cultivation of cotton. The area analysis shows that for a cotton crop an area about 966.7 ha (49.1%) of TGA is moderately suitable and classified as S2. An area about 469.9 ha (23.8%) of TGA is marginal to moderately suitable (S3-S2). The marginally suitable soils for cotton are classified as S3 and cover an area about 35.2 ha (1.8%) of TGA. However, a 172.3 ha (8.7%) area is not suitable (N2) to marginally suitable (S3) and a 326.9 (16.6%) area is not suitable (N2) for cotton because of uncorrectable factors like soil depth, slope, etc. The study demonstrated that GIS-based multicriteria overlay analysis of soil thematic parameters will be of immense help in soil-suitability evaluation for cotton. (C) 2011 Elsevier Ltd. All rights reserved.
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