The headwater stream Bal Ganga is a famous perennial, snow-fed tributary of the River Bhilangana. It emanates from the Khatling glacier and then mixed with the Dharam Ganga in Chamiyala and ultimately merges with the River Bhilangana in Muniprayag near the Ghansali town. The altitudinal gradient of Bal Ganga stream is not very high. The total basin reflects a network of various streams, rivulets of various dimensions beautifully representing a dendritic drainage or river system pattern. A total of three sites were identified for the collection of water samples in the study area. Analysis of physicochemical profile of mountain fluvial system of Bal Ganga had been undertaken for a time span of 12 months during October, 2016 to September, 2017. A total of thirteen physicochemical parameters were recorded during the study period. The water velocity was recorded between 0.47 and 2.24 m s −1 . Hydro median depth was recorded within a range of 3.14–4.89 m. Total dissolved solids were found within a range of 84.3–101.1 mg l −1 . Turbidity was found between 10.3 and 27.3 NTU. The concentration of dissolved oxygen was recorded within a range of 7.06–11.6 mg l −1 . Concentration of free CO 2 was recorded within a range between 2.2 and 13.2 mg l −1 . Concentration of chlorides was recorded within a range between 2.84 and 9.66 mg l −1 , and hardness concentration was recorded within a range of 14–28 mg l −1 . A total of 15 species from two major groups of phytoplanktons and periphytons were identified that were Cocconeis, Cymbella, Diatoma, Fragilaria, Gomphonema, Navicula, Nitzschia, Synedra, Tabellaira, Cosmarium, Ulothrix, Spirogyra, Zygnema, Chlamydomonas and Cladophora.

中文翻译：

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Garhwal喜马拉雅河源流Bal Ganga水生植物多样性及理化特征

源头溪流 Bal Ganga 是 Bhilangana 河的一条著名的多年生积雪支流。它发源于哈特林冰川，然后与恰米亚拉的达拉姆恒河混合，最终与甘萨利镇附近穆尼帕亚格的比兰加纳河汇合。Bal Ganga 流的海拔梯度不是很高。整个流域反映了各种河流的网络，各种尺寸的小溪精美地代表了树枝状排水系统或河流系统模式。研究区共确定了三个地点用于采集水样。2016 年 10 月至 2017 年 9 月，对 Bal Ganga 山区河流系统的理化特征进行了为期 12 个月的分析。研究期间共记录了 13 个理化参数。水速记录在0.47 和2.24 m s -1 之间。水文中值深度记录在 3.14-4.89 m 范围内。发现总溶解固体在 84.3–101.1 mg l -1 的范围内。浊度在 10.3 和 27.3 NTU 之间。溶解氧的浓度记录在 7.06–11.6 mg l -1 的范围内。游离CO 2 的浓度记录在2.2 和13.2 mg l -1 之间的范围内。记录的氯化物浓度在 2.84 和 9.66 mg l -1 之间，硬度浓度记录在 14-28 mg l -1 范围内。共鉴定出浮游植物和附生生物两大类中的 15 种物种，它们是 Cocconeis、Cymbella、硅藻、Fragilaria、Gomphonema、Navicula、Nitzschia、Synedra、Tabellaira、Cosmarium、Ulothrix、Spirogyra、Zygnema、Chlamydomonas 和 Clamydomonas。