Assessment of climatic variability in the catchments of Himalayan Lake, Jammu &amp; Kashmir

Mushtaq, Fayma; Lala, Mili Ghosh Nee

doi:10.1080/10106049.2016.1188169

Cited by 10 publications

(3 citation statements)

References 35 publications

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“…Hence, the direct and indirect dumping of wastes from various human related activities roots to heavy deposition of chemicals and nutrients causing the lake water highly polluted, and subsequent eutrophication. Besides there is a massive reduction in clear water dominated area of lake (from 77 to 6 km 2 ) and upsurge in lake surface water temperature (Mushtaq & Nee Lala, 2017b; Mushtaq et al., 2019), resulting in dominance of algal laden waters. Butt and Nazeer (2015) revealed the key aspect behind the increased quantity of Chl‐a and higher TSI in Rawla Lake, Pakistan due to the relatively moderate temperature in the month of October (average 20°C), feasible for algal growth.…”

Section: Resultsmentioning

confidence: 99%

Trophic State Assessment of a Freshwater Himalayan Lake Using Landsat 8 OLI Satellite Imagery: A Case Study of Wular Lake, Jammu and Kashmir (India)

Mushtaq¹,

Lala

Mantoo³

2022

Earth and Space Science

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Freshwater ecosystems across the globe are under substantial stress and prone to frequent manifestations such as harmful algal blooms (Lee et al., 2016) which pose threat to society and environment restricting lives of humans and animals dependent on lake ecosystem (Le et al., 2013;Smith, 2006). Being the primary source of organic carbon, biogeochemical process, and base of aquatic food web, phytoplankton has a significant impact on lake ecosystem and water quality (

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Section: Resultsmentioning

confidence: 99%

Trophic State Assessment of a Freshwater Himalayan Lake Using Landsat 8 OLI Satellite Imagery: A Case Study of Wular Lake, Jammu and Kashmir (India)

Mushtaq¹,

Lala

Mantoo³

2022

Earth and Space Science

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“…Annual inflow of sediment deposits as silt from tributaries ranging from 50,000 to 170,000 cm/100 square meters (Wani, 2012) has considerably reduced the depth of the lake, so dredging is needed to maintain storage capacity (WUCMA, 2016). Of the total lake area, 77% is moderate to extremely polluted (Mushtaq et al, 2015). The high level of pollution is attributed to progressive anthropogenic pressure in downstream areas of Sukhnag, one of the major streams draining into Wular Lake (Bhat et al, 2014).…”

Section: Ecological Degradation/vulnerability (Vul)mentioning

confidence: 99%

Interdisciplinary assessment of fisheries sustainability in Wular Lake, India

Atufa

Ananthan

Balkhi

et al. 2023

Fisheries Management Eco

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Inland fisheries, including aquaculture, contributed 73.65% of India's total fish production of 14.16 million tons in 2019–2020. Wular Lake, one of the largest freshwater lakes in Asia with a 13,000 ha area and a notable Ramsar wetland of international importance, supports thriving but increasingly threatened endemic fisheries that supply almost one‐fourth of Jammu and Kashmir's fish catch and supports livelihoods of 3147 families of indigenous communities in a remote Himalayan region of India. A modified multi‐dimensional RAPFISH methodology was used to ascertain the sustainability of the lake's fisheries. Catch records and published literature formed secondary data sources while primary information was collected through detailed key informant interviews, focus group discussions and participant observation methods, among both resource users and resource managers during 2018–2019. With a RAPFISH score of 40%, Wular lake fisheries fell in a less sustainable category, which is a cause of concern. Along with the technology evaluation field, which fared worst with a poor score of 15.77%, social (30.39%) and governance (39.09%) fields were less sustainable, while economic (69.33%) and ecology fields (57.68%) fell in the quite sustainable category. Very poor education level, high population density, minimal infrastructure, primitive craft, increasing pollution and ineffective governance are prime drivers of low sustainability. Variability in scores of evaluation fields and indicators supports the validity and utility of the modified RAPFISH tool for illuminating multi‐dimensionality and complexity of lake fishery management. In the context of sustaining a small‐scale artisanal fishery and associated livelihoods, our findings suggest specific evidence‐based interventions to improve the sustainability of lake fisheries that can avoid tragedy of commons problem.

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“…The statistical significance of discharge trends for all the four stations was also analyzed using the Mann-Kendall test (details in [59,60]) in Trend Software (available at https://toolkit.ewater.org.au/). It is pertinent that the Mann-Kendall test has been widely used for estimating the significance of trends in time series of hydrometeorological data across the mountain regions [61][62][63][64]. The Man-Kendall statistic, denoted by S, is computed as…”

Section: Historical Sstreamflow Patternsmentioning

confidence: 99%

Linking the Recent Glacier Retreat and Depleting Streamflow Patterns with Land System Changes in Kashmir Himalaya, India

Rashid

Majeed

Aneaus

et al. 2020

Water

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This study reports the changes in glacier extent and streamflow similar to many Himalayan studies, but takes the unusual step of also linking these to downstream land use changes in Kashmir Valley. This study assessed changes in the area, snout, and equilibrium line altitude (ELA) of four parts of the Kolahoi Glacier using earth observation data from 1962 to 2018. Changes in the discharge of the two streams flowing out from Kolahoi Glacier into the Jhelum basin were also assessed between 1972 and 2018. Additionally, satellite data was used to track the downstream land system changes concerning agriculture, orchards, and built-up areas between 1980 and 2018. This analysis suggested a cumulative deglaciation of 23.6% at a rate of 0.42% per year from 1962 to 2018. The snout of two larger glaciers, G1 and G2, retreated at a rate of 18.3 m a −1 and 16.4 m a −1 , respectively, from 1962 to 2018, although the rate of recession accelerated after 2000. Our analysis also suggested the upward shift of ELA by ≈120 m. The streamflows measured at five sites showed statistically significant depleting trends that have been a factor in forcing extensive land system changes downstream. Although the area under agriculture in Lidder watershed shrunk by 39%, there was a massive expansion of 176% and 476% in orchards and built-up areas, respectively, from 1980 to 2018. The conversion of irrigation-intensive agriculture lands (rice paddy) to less water-intensive orchards is attributed to economic considerations and depleting streamflow.Water 2020, 12, 1168 2 of 18 to decrease in the streamflows in the Himalayan Rivers [7,[27][28][29], which could affect water availability downstream [30]. Studies suggest that the glacier recession in the Kashmir valley has already resulted in the depleted streamflows downstream [31,32]. The land system changes in the region [33][34][35][36] have been linked to depleting streamflows, economic considerations, and unplanned land transformation.The use of remote sensing data for quantifying land system changes over the Kashmir region has been widely documented [37][38][39][40]. At the same time, there is substantial scientific literature detailing the glacier retreat prevalent over the region. A recent study indicated that the glaciers in the Ladakh region are retreating at 0.55% a −1 [41], whereas another study [42] reported few stable and advancing glaciers in the Zanskar region of Jammu and Kashmir. Similar retreat estimates have been put forth for the Zanskar region for the glacier area changes carried between 1989 and 2007 [43]. However, very conservative area changes (0.16% a −1 ) have been reported for the neighboring Suru basin [44] for the glacier area changes assessed for the 1977-2017 period. In another study carried out in the Lidder watershed of the Jhelum basin, the glaciers were reported to be shrinking at 0.51% a −1 [17]. Glacier mass change over the western Himalayas has accelerated from 0.33 to 0.5 m w.e. (water equivalent) per year between 1970-2000 and 2000-2010, respectively [45]. Ther...

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Assessment of climatic variability in the catchments of Himalayan Lake, Jammu & Kashmir

Cited by 10 publications

References 35 publications

Trophic State Assessment of a Freshwater Himalayan Lake Using Landsat 8 OLI Satellite Imagery: A Case Study of Wular Lake, Jammu and Kashmir (India)

Trophic State Assessment of a Freshwater Himalayan Lake Using Landsat 8 OLI Satellite Imagery: A Case Study of Wular Lake, Jammu and Kashmir (India)

Interdisciplinary assessment of fisheries sustainability in Wular Lake, India

Linking the Recent Glacier Retreat and Depleting Streamflow Patterns with Land System Changes in Kashmir Himalaya, India

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