Land suitability studies for major crops in Pavagada taluk, Karnataka using remote sensing and GIS techniques

Abstract

Pavagada taluk of Tumkur district in Karnataka is one of the most backward taluks receiving less than 500 mm annual rainfall. The maximum area of the taluk is under monocropping, reasons for the same were not documented well. The present study was carried out using remote sensing data along with field survey and laboratory analysis for assessing the potentials and limitations of soil.Using the basic information on soil, climate and topography based on the matching exercise between the growth and production requirements of the crop, suitability of soils for groundnut, paddy and finger millet was assessed as per FAO land evaluation. The soil suitability maps were prepared using Arc GIS software. About 48 per cent of the total area was moderate to marginally suitable and 13 per cent of the area was not suitable for both groundnut and finger millet. Lowland areas covering 12 per cent of the area was highly suitable, 15 per cent was moderate to marginally suitable and 20 per cent was not suitable for paddy cultivation.

Classification and suitability evaluation of soils along a toposequence for rice production in Alabata, Southwest Nigeria

“…Land suitability of a particular land is a function of matching the land characteristics with the crop requirements (Mustafa et al, 2011). Optimizing rice production could be met through a systematic survey of the soils, evaluating their potentials for a wide range of land use options and formulating land use plans which are environmentally benign, socially acceptable and economically viable (Addeo et al, 2001;Sathish and Niranjana, 2010). However, the interest of any farmer lies mainly on how profitable it is to grow a particular crop and what amendments are necessary to optimize the productivity of the soil for the specified crop (Fasina and Adeyanju, 2007).…”

A Study on Land Suitability for Rice Cultivation in Khordha District of Odisha (India) Using Remote Sensing and GIS

“…The digitally processed remotely sensed LULC from moderate resolution imaging spectrometer (MODIS) was used in global, regional and local level studies by several researchers (Friedl et al 2002;Hansen et al 2000;Wessel et al 2004). Satellite data from Indian remote sensing satellites (IRS series) including RESOURCESAT-1 (IRS P6) and 2 in recent times are quite useful in agriculturerelated studies that involve LULC change analysis in Indian context (Bhagat et al 2009;Choudhury et al 2006;Devi and Kumar 2008;Kumar et al 2013;Sathish and Niranjana 2010). These satellites have sensors like LISS III, LISS IV and AWiFS, which have better spectral and radiometric resolutions and are capable of covering larger area so that the acquired information can be helpful for all agricultural studies.…”

Earth Observation and Geospatial techniques for Soil Salinity and Land Capability Assessment over Sundarban Bay of Bengal Coast, India

“…However, this exercise requires the analysis of a large amount of spatial data. Using the conventional approach of land surveying will be time-consuming, laborious and costly, especially for environmentally sound (Sathish and Niranjana, 2010). Numerous land capability assessment techniques used are versions to the local settings of the Framework for Land Evaluation (FAO, 2007) and centre on the sternness of land restrictions connected to crops and land use (Desmet, et.al., 2009).…”

“…The use of remote sensing techniques has become increasingly important in describing a variety of satellite-derived data sets and their application to understand changes in the landscape (Al-Mashreki et al, 2010). With the advent of Remote Sensing, database generation became faster, cost effective and more reliable (Sathish and Niranjana, 2010). Since land capability analysis requires the use of different kinds of spatial and non-spatial data (soil, climate, land use, topography, etc.…”