Garg R K, Rao R J, Saksena D N
Centre of Excellence in Biotechnology, M.P. Council of Science and Technology (MPCST), Vigyan Bhawan, Nehru Nagar, Bhopal 462 003, India.
J Environ Biol. 2009 Sep;30(5 Suppl):909-16.
The aim of this study is to assess physico-chemical characteristics, trophic status, pollution studies and macrophytic community of Ramsagar reservoir from April 2003 to March 2005. The range of various parameters of reservoir water (water temperature 15.92-31.87 degrees C, water depth 2.90-8.25 m, transparency 66.59-116.00 cm, electrical conductivity 108-246.30 microS cm(-1), turbidity 2.17-16.72 NTU, total dissolved solids 166.37-239.00 mg l(-1), pH 7 41-8.95, dissolved oxygen 6.78-11.59 mg I(-1), free carbon dioxide nil-6.32 mg l(-1), total alkalinity 64.25-146.25 mg l(-1), total hardness 34.00-75.25 mg l(-1), chlorides 13.13-22.36 mg l(-1), calcium 11.21-33.81 mg l(-1), sulphates 1.50-8.87 mg l(-1), nitrates 0.011-0.033 mg l(-1), nitrites 0.004-0.029 mg l(-1), phosphates 0.013-0.054 mg l(-1), silicates 0.65-8.42 mg l(-1), ammonia nil-0.84 mg l(-1), biochemical oxygen demand 0.93-4.68 mg l(-1), chemical oxygen demand 3.60-17.40 mg l(-1), magnesium 1.17-5.60 mg l(-1), sodium 16.75-34.30 mg l(-1) and potassium 1.97-4.86 mg l(-1)) exhibit monthly as well as seasonal fluctuations. The nutrients including silicates, sulphates, phosphates, nitrates and potassium are in sufficient quantities for the growth of aquatic plants and animals in the reservoir. In all 13 species of macrophytes were recorded from the reservoir. Macrophytic diversity was higher at the points where nallahas join the reservoir and in the areas where agricultural practices are performed. This was due to allocthonous nutrients brought into the reservoir from the surrounding catchments area. The above study indicated that the Ramsagar reservoir is under the category of mesotrophic water body slightly inclined towards eutrophication. Therefore, the conservation and management of this water body are very much required.
本研究的目的是评估2003年4月至2005年3月拉姆萨加尔水库的物理化学特征、营养状况、污染情况及大型植物群落。水库水的各种参数范围（水温15.92 - 31.87摄氏度，水深2.90 - 8.25米，透明度66.59 - 116.00厘米，电导率108 - 246.30微西门子每厘米，浊度2.17 - 16.72 NTU，总溶解固体166.37 - 239.00毫克每升，pH值7.41 - 8.95，溶解氧6.78 - 11.59毫克每升，游离二氧化碳零至6.32毫克每升，总碱度64.25 - 146.25毫克每升，总硬度34.00 - 75.25毫克每升，氯化物13.13 - 22.36毫克每升，钙11.21 - 33.81毫克每升，硫酸盐1.50 - 8.87毫克每升，硝酸盐0.011 - 0.033毫克每升，亚硝酸盐0.004 - 0.029毫克每升，磷酸盐0.013 - 0.054毫克每升，硅酸盐0.65 - 8.42毫克每升，氨零至0.84毫克每升，生化需氧量0.93 - 4.68毫克每升，化学需氧量3.60 - 17.40毫克每升，镁1.17 - 5.60毫克每升，钠16.75 - 34.30毫克每升，钾1.97 - 4.86毫克每升）呈现出月度和季节性波动。包括硅酸盐、硫酸盐、磷酸盐、硝酸盐和钾在内的营养物质，对于水库中水生植物和动物的生长来说数量充足。水库中共记录到13种大型植物。在纳拉哈斯汇入水库的地点以及进行农业活动的区域，大型植物的多样性更高。这是由于从周边集水区带入水库的外来营养物质所致。上述研究表明，拉姆萨加尔水库属于中营养水体类别，略有向富营养化倾斜的趋势。因此，对该水体的保护和管理非常必要。
