Analysing land cover dynamics vis-a-vis topography in Huinyal watershed (Garhwal Himalayas) using geospatial tools
2004
Joshi, P.K. | Das, K.K. | Jamwal, A.K. | Hemlata, Indian Institute of Remote Sensing, Dehra Dun (India)
One of the basic requirements for sustainable management is building up of information on the natural resources and process of utilisation. In the western Himalayan eco region it is highly required due to total dependency on these reso'urces for fuel/fodder collection. The result is significant land cover dynamics and fragmentation of forest and natural hazards. These forest resources have until recently dominated in the mountains but are today decreasing due to forest invasion - which in turn changes human land use practices. The present paper focuses on land cover dynamics vis-a-vis topography in Huinyal watershed situated in Garhwal Himalayas. This study contributes examples from mount~il1ous regions where human activities have re-shaped the ecosystem. The geospatial tool has been used to analyse the land cover dynamics along the topography. The results significantly report the cover dynamics is dependent on the aspect due to sun illumination. The altitude and slope is no more a barrier for resource extraction and the human activity zone is shifting towards higher altitudes and slopes. The changes are also defined along the road and settlements.
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