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2.5 Derivation of Crop-Sensitive Parameters From Remote Sensing for Paddy and Sugarcane Crops 2.5.1 Study Area

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The present study was carried out in Krishna Central Delta (KCD), a part of Krishna Eastern Delta in the Krishna district in the state of Andhra Pradesh, which is named after the holy river Krishna, bounded by the latitudes 16°37'15"N and 15°42'15"N and longitudes 80°34'0"E and 81°16'0"E. It constitutes the command area of Bandar canal and Krishna Eastern bank canal, which has an irrigated ayacut of 111223.83 ha in Krishna district. It irrigates about 18 mandals in Krishna district (Figure 2.2). In the Kharif season (July/August to November/December), the major crops grown are paddy, sugarcane, turmeric, and vegetables, and the predominant crops grown during the Rabi season (December to March) are paddy, sugarcane, maize, pulses, and cauliflower. At the upper reaches, farmers are also cultivating in the summer season. Orchards are also grown specifically in south part of the study area. The main crop in Kharif is paddy in 95% of the study area. The various land use pattern of the study area is presented in Table 2.1. The major area is under agriculture (1539.342 km2) followed by aqua (402.971 km2) and horticulture (57.648 km2).

Figure 2.2 Location details of Krishna Central Delta (original figure).

Table 2.1 Land use of the study area in the year 2014–2015.

S. no. LULC class Area (km2) Percentage (%)
1 Agriculture 1539.342 69.1924
2 Water bodies/Aqua 402.971 18.11328
3 Other waste land 18.91 0.849992
4 Buildup 117.369 5.275659
5 Deciduous forest 88.487 3.977432
6 Plantation/orchard 57.648 2.591239

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