Evidence for the increased eutrophication of lake nainital as a result of human interference

Pant, M. C.; Sharma, Ankita; Sharma, Prashant

doi:10.1016/0143-148x(80)90034-8

Cited by 36 publications

(9 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The annual rainfall in the catchment of Lake Naini ranges from 2,000 to 2,500 mm. The ambient temperature varies from -5 to 30°C and the monthly mean air temperature ranges from 8 (January) and 21.5°C (May), and the average relative humidity is about 64% (Pant et al 1980;Saravana kumar et al 2001).…”

Section: Study Areamentioning

confidence: 99%

See 1 more Smart Citation

Sediment and hydro biogeochemistry of Lake Nainital, Kumaun Himalaya, India

et al. 2011

View full text Add to dashboard Cite

The picturesque Nainital Lake, in the Uttarakhand state of India, is one of the major tourist attractions in the northern part of India. The increasing tourism and population around these lakes are a major concern for the ecology and good sustenance of the lakes. The present study is aimed to understand the behaviour of nutrients and metals in the sediment and their association with chemical forms in the lake. The study was accomplished by studying the water, interstitial water and sediments for major oxides, nutrients and metals in the lake. The different chemical forms of phosphorus and metals in the sediments were done using sequential extraction procedures. The water chemistry (Ca ? Mg:Na ? K) and the sediment chemistry (CIA and Al 2 O 3 /K 2 O) show that the rocks in the catchment area play an important role in the geochemistry of the lake. The metals in the water also show that the Tallital basin is more polluted than the Mallital basin, may be due to the influence of Bus station. The high concentration of chloride, NH 4 , SO 4 and metals in the sediment water interface and the interstitial water shows denitrification, sulfidisation and sulfide oxidation in the anoxic bottom water. The sediment composition shows that the phosphorus in the water is sequestered as carbonate flour apatite, and the metals precipitate as carbonate. The geo-accumulation index shows that the metals zinc, cobalt and nickel show moderate polluted nature than other metals. In general, the lake is less affected by anthropogenic activities. The chemical processes undergoing within the lake, like sulfidisation and sulfide oxidation, oxide dissolution and denitrification and organic matter degradation play an important role in the remobilization of the metals from the lake sediments.

show abstract

Section: Study Areamentioning

confidence: 99%

“…Pant et al (1980) observed that, the Lake Nainital is undergoing rapid eutrophication and reported that N, CO 2 and hardness of the water have increased quite alarmingly during the last two decades. Gupta and Pant (1989) have documented the elemental chemistry of sediments in the Nainital Lake.…”

Section: Introductionmentioning

confidence: 99%

Sediment and hydro biogeochemistry of Lake Nainital, Kumaun Himalaya, India

et al. 2011

View full text Add to dashboard Cite

show abstract

“…The limnological survey as well as the data of Water Works Division of Nainital reflects increasing rapid eutrophication of the lake water (Pant et al 1980). The study on physico-chemical characteristics and pollution level of Nainital lake shows lake water is rich in nutrients which supports growth of many aquatic macrophytes and algal blooms (Ali et al 1999).…”

Section: Resultsmentioning

confidence: 99%

Analysis of Trophic State Index of Nainital Lake from Landsat −7 ETM Data

Mishra

Garg

2011

J Indian Soc Remote Sens

View full text Add to dashboard Cite

Trophic State Index (TSI) of Nainital lake has been determined using secchi disk transparency as well as using Landsat 7 ETM bands. The insitu water quality parameters like pH and dissolved oxygen (DO) have been measured using multiparameter water quality instrument TROLL 9500. Various interpolation techniques have been tested and the best one has been applied to prepare the water quality images of Nainital lake. The analysis of Landsat images have shown that the lake water is in eutrophic condition from the year 2000 to 2010. However, the trophic state index values are found to be relatively less during the year 2006 to 2008. This may be due to the lake restoration programmes undertaken by the Lake Development Authorities.

show abstract

“…The input and accumulation of nitrogen and phosphorus has been identified as the most important sources of eutrophication [5][6][7]. There is a preliminary consensus that phosphorus dominates primary production in freshwater lakes, while nitrogen controls the productivity of marine systems [6,8,9].…”

Section: Introductionmentioning

confidence: 99%

Identification and Quantification of Physicochemical Parameters Influencing Chlorophyll-a Concentrations through Combined Principal Component Analysis and Factor Analysis: A Case Study of the Yuqiao Reservoir in China

et al. 2018

View full text Add to dashboard Cite

Algal outbreaks caused by excessive nutrients in lakes result in eutrophication.Chlorophyll-a, as a primary productivity feature, is used as a representative index of algal presence in lakes. Physicochemical parameters are known to affect the type and amount of nutrients in lakes, which are related to eutrophication. In this study, factor analysis was used in conjunction with principal component analysis to reveal the relationship between chlorophyll-a and its associated parameters. The combination of these two methods helps to identify the main influencing parameters by quantifying the respective extent of parameters using FA, after which the meaning is explained by PCA. We investigate physicochemical parameters, including temperature, dissolved oxygen (DO), pH, suspended solids, chemical oxygen demand (COD) and five-day biochemical oxygen demand, as well as nutrients, such as ammonium, nitrite, nitrate, total nitrogen, and total phosphorus (TP). Yuqiao Reservoir, an important drinking water source in northern China, has been affected by eutrophication for years. Analysis was performed using daily monitoring data of physicochemical parameters and chlorophyll-a concentrations collected from Yuqiao Reservoir between 2003 and 2014. Results show that main parameters affecting chl-a concentrations are TP, temperature, DO, COD, and nitrogen, with correlation coefficients of 0.977, 1.983, 1.797, and 1.595, respectively.

show abstract

Evidence for the increased eutrophication of lake nainital as a result of human interference

Cited by 36 publications

References 11 publications

Sediment and hydro biogeochemistry of Lake Nainital, Kumaun Himalaya, India

Sediment and hydro biogeochemistry of Lake Nainital, Kumaun Himalaya, India

Analysis of Trophic State Index of Nainital Lake from Landsat −7 ETM Data

Identification and Quantification of Physicochemical Parameters Influencing Chlorophyll-a Concentrations through Combined Principal Component Analysis and Factor Analysis: A Case Study of the Yuqiao Reservoir in China

Contact Info

Product

Resources

About