Abstract
Watershed management is an integrated approach where a balanced utilization of land and water resources for optimal production with least menace to natural resources. Geospatial Technologies can be played an important role for the organization of various natural resources in a watershed. For sustainable development of land and water resources, the Andhra Pradesh State Government is implementing development of watershed programmes on priority basis. The watershed management activities include construction of rainwater harvesting structures, soil conservation measures and environmental protection measures (TAWDEVA). The selected watershed area was Kovvada Kalava Watershed which is a part of West Godavari District of Andhra Pradesh and was identified as drought and flood effected area because of sparse and variable rainfall. Collection of resource data includes digital imageries of study area for two seasons, Survey of India toposheets on 1:50000 scale, and other ancillary data / maps were conceded along with socio-economic data. The other datasets include levels of groundwater from concerned departments etc was collected. Various thematic maps on Settlements and Transport Network, Contours, Drainage Network, Slope, Geomorphology, Lithology, Structure and Land Use / Land Cover were generated by employing Arc GIS platform. After analyzing all maps integrated watershed analysis has been made aiming at generating sustainable developmental measures of land and water resources in the area.
Highlights
Watershed is a geohydrological unit draining at a common point by a system of streams (T. Rambabu et al, 2017)
Watershed management is a continuous process of integrated decision-making regarding use and alteration of natural resources in a watershed
Watershed management practices are those changes in land use, vegetation cover, and other non-structural and structural actions that are taken on a watershed for the holistic development of the watershed
Summary
Watershed is a geohydrological unit draining at a common point by a system of streams (T. Rambabu et al, 2017). Rambabu et al, 2017) It is an ideal and accepted unit for approach planning, development and management of land and water resources which requires the understanding of relationship among land use, soil and water. Existence on earth depends on water and it is one of the most important natural resources available to mankind (Nihal Baloglu Ugurlu and Elif Aladag, 2016). It is a driving force for all developmental activities and of great importance for people and environment. Watershed management is a continuous process of integrated decision-making regarding use and alteration of natural resources in a watershed. Watershed management practices are those changes in land use, vegetation cover, and other non-structural and structural actions that are taken on a watershed for the holistic development of the watershed
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