lakes
A total 36 taxa belonging to 7 genera of desmids have been described and illustrated from Bees-hazaar lake of which 11 taxa are recorded for the first time for Nepal. This is a preliminary work on the desmids from this lake.
The mesoscale snow distribution over the Namco lake area of the Tibetan Plateau on October 2005 has been investigated in this paper. The base and revised experiments were conducted using the Weather Research Model (WRF) with three nested grids that included a 1 km finest grid centred on the Namco station. Our simulation ran from 6 October through to 10 October 2005,...
This study analysed satellite images and long term climate variables from a high-elevation meteorological station (4730 m) and streamflow records to examine hydrological response of Nam Co Lake (4718 m), the largest lake on the Tibetan Plateau, over the last 50 years. The results show the lake area extended by 51.8 km2 (2.7% of the total area) when compared...
Ghodaghodi Lake in Far-West Nepal has been listed as a Ramsar Site due to its significance as a habitat for several endangered species of flora and fauna. The wetland and its surrounding area is facing deforestation, forest degradation and encroachment. In this case study, unsupervised and finally supervised classification of multi-temporal Landsat imagery covering the wetland area was applied...
The authors undertook a quantitative investigation of aquatic macrophytes in Beeshazar Tal (Beeshazar Lake) in summer and winter of 2002 and spring of 2003. They found a distinct seasonal variation in the distribution of macrophytes: based on importance value index, Leersia hexandra Sw., Eichhornia crassipes (Mart.) Solms, Ceratophyllum demursum L. and Trapa quadrispinosa Roxb. were dominant...
Sierra waters are critical for the health and welfare of California and Northern Nevada. Almost all 24 major watersheds of the Sierra – those areas of land and water that capture precipitation and drain into a major river or lake – are polluted and impaired to some degree from 150 years of human activity. With future population growth sky rocketing and global warming raising...
In the winter of 1911, a massive earthquake-induced landslide in the Pamir Mountains of eastern Tajikistan completely blocked the valley of the Bartang (Murgab) River, a headwater tributary to the Amu Darya River basin. A lake began to grow behind this natural dam and has now reached a length of 60 km. In a worst-case scenario that assumes collapse of the dam, a catastrophic outburst flood...
Mountain lakes, an important mountain resource in China, are increasingly faced with degradation through pollution, eutrophication, and sedimentation. This article reviews the environmental situation of Qionghai Lake in Sichuan Province, China, and presents an analysis of the causes of its degradation. Regulations have been adopted for ecological restoration of Qionghai Lake, and a management...
Wetlands comprise 5% of world’s total land areas of Nepal. The present study Ghodaghodi Lake in the Far-West Nepal Terai manifested the physicochemical contamination in the lake. All the parameters were within the WHO guideline values except for Phosphate and Dissolved Oxygen. Water depth varies form 1-4 m. High phosphate level suggested that the lake is hypertrophic. Dissolved oxygen...
Reform of water policy is urgently needed to avert severe national, regional and local water scarcities that will depress agricultural production and worsen water-related health problems. Water is abundant globally but scarce locally. Of the earth’s 1,360 million cubic kilometres of water, 97 percent is in the oceans. Three-quarters of the freshwater is in glaciers and icebergs, another...
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