Sahyadri Conservation Series: 24 ENVIS Technical Report: 54,  April 2013
Kumaradhara River Basin, Karnataka Western Ghats: Need for Conservation and Sustainable Use
1Energy and Wetlands Research Group, Centre for Ecological Sciences, Indian Institute of Science, Bangalore – 560012, India.
2Member, Western Ghats Task Force, Government of Karnataka, 3Member, Karnataka Biodiversity Board, Government of Karnataka
4Member, Tree Authority  Mangalore (Rural),  Government of Karnataka
*Corresponding author:

Land use analysis ( has been done considering latest remote sensing data (IRS LISS IV, 26 Jan 2012 procured from National Remote Sensing Centre, Hyderabad, The analysis involved i) generation of False Colour Composite (FCC) of remote sensing data (bands – green, red and NIR). This helped in locating heterogeneous patches in the landscape ii) selection of training polygons (these correspond to heterogeneous patches in FCC) covering 15% of the study area and uniformly distributed over the entire study area, iii) loading these training polygons co-ordinates into pre-calibrated GPS, vi) collection of the corresponding attribute data (land use types) for these polygons from the field . GPS helped in locating respective training polygons in the field, iv) supplementing this information with Google Earth  v) 60% of the training data has been used for  classification, while the balance is used for validation or accuracy assessment.

Land use analysis was carried out using supervised pattern classifier - Gaussian maximum likelihood algorithm. The region (Figure 5) is dominated by forests (102268.80 hectares, 57.39%) followed by areca (40073 hectares; 22.49%), rubber plantations (16815; 9.44%), others (17785 hectares, 9.98%), water (1176hectares, 0.66%) and built-up (93 hectares; 0.31%).

Figure 5: Land use in Kumaradhara river basin

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