The paper highlights the Phyto-diversity and indigenous uses an ecosystem existing in Lahaul Valley of tribal district of Lahaul and Spiti in Himacjhal Pradesh, India. This is one of the most preferred tourist spot es...The paper highlights the Phyto-diversity and indigenous uses an ecosystem existing in Lahaul Valley of tribal district of Lahaul and Spiti in Himacjhal Pradesh, India. This is one of the most preferred tourist spot especially for foreigners. The cold desert area of India is known for its specific topography, sense climate and unique vegetation. The valley is rich in high value medicinal wealth and local inhabitants (Buddhist) practice the Tebetan Amchi System of Medicine. Keeping in view the continuous pressure on nature, this paper reflects the Phyto-diversity of Valley, with reference to medicinal and aromatic plants and conserva-tion mechanisms to protect the valuable wealth of the valley and also suggests effective ecotourisim planning of the study area.展开更多
Land use and land cover changes that occurred during the period from 1991 to 2001 in the Jahlma watershed of the Lahaul valley,a cold desert region of the northwestern Himalaya,were evaluated using land use data and v...Land use and land cover changes that occurred during the period from 1991 to 2001 in the Jahlma watershed of the Lahaul valley,a cold desert region of the northwestern Himalaya,were evaluated using land use data and visual interpretation of IRS Satellite imageries. The results revealed that out of the six major land use forms within the watershed,land areas under agriculture,kitchen garden and settlement land were found increased,whereas a declining trend was recorded in areas under grassland,barren land and Salix plantation. The cultivated land within the watershed increased from 54.87 % (total of agriculture land,kitchen garden,grassland,barren land,Salix plantation and residential area) in 1991 to 56.89 % in 2001,corresponding to an expansion of 4.41 ha. On the other hand,the areas of grassland decreased from 31.41 % in 1991 to 29.81 % in 2001. Such a dramatic land use and land cover changes taking place within the 33 km2 watershed area in a single decade clearly indicates the prevailing danger of land degradation and environmental deterioration in the region.展开更多
文摘The paper highlights the Phyto-diversity and indigenous uses an ecosystem existing in Lahaul Valley of tribal district of Lahaul and Spiti in Himacjhal Pradesh, India. This is one of the most preferred tourist spot especially for foreigners. The cold desert area of India is known for its specific topography, sense climate and unique vegetation. The valley is rich in high value medicinal wealth and local inhabitants (Buddhist) practice the Tebetan Amchi System of Medicine. Keeping in view the continuous pressure on nature, this paper reflects the Phyto-diversity of Valley, with reference to medicinal and aromatic plants and conserva-tion mechanisms to protect the valuable wealth of the valley and also suggests effective ecotourisim planning of the study area.
文摘Land use and land cover changes that occurred during the period from 1991 to 2001 in the Jahlma watershed of the Lahaul valley,a cold desert region of the northwestern Himalaya,were evaluated using land use data and visual interpretation of IRS Satellite imageries. The results revealed that out of the six major land use forms within the watershed,land areas under agriculture,kitchen garden and settlement land were found increased,whereas a declining trend was recorded in areas under grassland,barren land and Salix plantation. The cultivated land within the watershed increased from 54.87 % (total of agriculture land,kitchen garden,grassland,barren land,Salix plantation and residential area) in 1991 to 56.89 % in 2001,corresponding to an expansion of 4.41 ha. On the other hand,the areas of grassland decreased from 31.41 % in 1991 to 29.81 % in 2001. Such a dramatic land use and land cover changes taking place within the 33 km2 watershed area in a single decade clearly indicates the prevailing danger of land degradation and environmental deterioration in the region.
