Investigating and evaluating the dynamics of change in water resources of the Aydar-Arnasay Lake system in Uzbekistan

Kulmatov, Rashid; Taylakov, A; Khasanov, Sayidjakhon

doi:10.1007/s11356-020-11959-7

Cited by 32 publications

(6 citation statements)

References 12 publications

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“…Monitoring of surface water dynamics of the reservoirs through remote sensing is very effective as it monitors the earth surface on regular intervals (Shrestha et al, 2016;Huang et al, 2018;Kulmatov et al, 2021;Taloor et al, 2021) which in turn helps in planning the culture-based fisheries (Wijenayake et al, 2014;Anand et al, 2019a). The no-water zone is the 0% Water Presence Frequency (WPF) and the study revealed that it contributes >50% of the total WSA of the selected reservoirs during the pre-monsoon season (Fig.…”

Section: Spatio-temporal Variations In the Water Spread Frequency (20...mentioning

confidence: 99%

A remote sensing approach to explore the available water spread for fisheries development in the reservoirs of Godavari River Basin, Telangana, India

Bhargavi

Krishnan

Asundi³

et al. 2022

Indian J. Fish.

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Reservoirs have tremendous fisheries potential amongst the inland water resources and aptly referred as ‘sleeping giants’, as the fish yield potential of these resources are yet to be tapped. Existing gaps in the availability of absolute information and data on the inland water resources hinder the applicability and implementation of various fisheries development programmes, which in turn impact inland fisheries production. The present study was carried out in the reservoirs viz., Sri Ram Sagar, Kaddam and Swarna from the Godavari Basin, covering the period 2016-2021, as a case study to demonstrate the use of remote sensed data in fisheries stock enhancement planning. The perennial and seasonal water spread area of the reservoirs under study, estimated through composite water maps prepared using Sentinel 2A data ranged between 8 to 19 and 4 to 29%, respectively. Further, the potential area for enclosure fish culture (both cage and pen culture) in these reservoirs were found to range between 14.89% (Sir Ram Sagar) to 48.54% (Kaddam). The field validated results revealed less than 0.1% of the perennial water spread area mapped in these reservoirs is under use for cage culture. This highlights under-utilisation of these reservoirs and demonstrates scope for developing enclosure fish culture or other culture-based fisheries for enhancing the fish production. The study also demonstrates the use of geospatial tools in development planning for expanding enclosure fish culture in the reservoirs and in turn enhancing fisheries production from the reservoirs in India. Keywords: Composite water maps, Enclosure fish culture, Geospatial tools, Godavari River, NDWI, Reservoir, Sentinel 2A data, Water spread area

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Section: Spatio-temporal Variations In the Water Spread Frequency (20...mentioning

confidence: 99%

A remote sensing approach to explore the available water spread for fisheries development in the reservoirs of Godavari River Basin, Telangana, India

Bhargavi

Krishnan

Asundi³

et al. 2022

Indian J. Fish.

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“…In recent years, Uzbekistan has encountered water scarcity, depletion of water resources and pollution. The local economy, as well as environmental stability depends in many respects on the available surface and groundwater resources, and their quantity and quality indicators [5,32,33].…”

Section: Importance Of Water Resources In Central Asia and Uzbekistanmentioning

confidence: 99%

“…Today, more than 2 billion people living in more than aridic and semi-aridic countries of the planet suffer from water shortages [2][3][4]. The global increase in average annual temperature in the last quarter of the 20th century caused gradual changes in precipitation and evaporation rate, which in turn fostered an average annual increase or decrease in surface and groundwater [5,6]. Groundwater utilization as a fresh drinking water in the water scarce regions is increasing year by year, and simultaneously there are several difficulties in meeting the basic food needs of the population of many countries and the level of water supply necessary to maintain regional ecosystems [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Quantity and quality of groundwater resources distribution along Sirdarya province, Uzbekistan

et al. 2021

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In the current context of climate change, water resources are an important source of the economy of Uzbekistan. The article assesses the climatic conditions of Sirdarya province for 2006-2018, groundwater resources for 2010-2018, their efficient use, the chemical composition of groundwater (chlorine and sulfate from anions, Cu, Be, Mo, As, Pb, Se from harmful heavy metals and Sr). Analysis of the time and space distribution of the amount of heavy metals in the groundwater of the province showed that their amount did not exceed the allowable limit. Changes in the amount of groundwater used for drinking, irrigation, industrial and technical purposes in the province were identified and evaluated, as well as scientific and practical recommendations for sustainable use and protection of groundwater resources.

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“…Such conditions effect for the accumulation of salts in the slope and AALS, as well as, increase mineralization of lake water (Kulmatov,et al, 2013;Kulmatov, et al, 2020). With the rising of lake water level, the groundwater level in the surrounding landscapes and secondary salinization in the soil will also increase (Wahyuni et al, 2009;Kulmatov, et al, 2021).…”

Section: Soil Salinity Condition In Agroirrigation Landscapesmentioning

confidence: 99%

Use of Landsat EVI in Determining the Degradation of Agroirriation Landscapes Adjacent to the Aydar-Arnasay Lakes System

Sabirova

Groll

Abbasov

2021

Preprint

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The Arnasay depression in Central Uzbekistan received large quantities of drainage water leading to the formation of the Aydarkul-Arnasay Lake System (AALS). The water level of the AALS drastically increased in 1969, when a flood in the nearby Syrdarya River basin could not be contained in the Chardarya reservoir, and today it occupies an area of 4000 km² of the Mirzachul and Kyzylkum desert. Increasing the lake’s water level also affects the surrounding agricultural land, further enhancing the level of groundwater and soil salinization. But the irrigated farming areas also influence the lake system due to the pollution of the drainage water discharged into the lake. As a result, both the arable land and the lake system are in a process of degradation, leading to reduced productivity and a variety of ecological problems. We used more of the remote sensing method in determining the degradation process in agroirrigation landscapes. Landsat EVI (Enhanced vegetation index) extremely resistant to various atmospheric resistances (aerosols). It monitors plants with very high sensitivity even in low biomass areas. Landsat has 4,5,7,8 series programs. Herein, we used Landsat-5 TM Collection 1 Tier 1 32-Day EVI and Landsat-8 ETM + Collection 1 Tier 1 32-Day EVI. To classify the degradation process in agroirrigation landscapes around the lake, we compared Landsat EVI images from March-April, May-June, June-July, Ilyul-August, August-September. We selected July-August as the optimal month to determine the perennial degradation process.

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Investigating and evaluating the dynamics of change in water resources of the Aydar-Arnasay Lake system in Uzbekistan

Cited by 32 publications

References 12 publications

A remote sensing approach to explore the available water spread for fisheries development in the reservoirs of Godavari River Basin, Telangana, India

A remote sensing approach to explore the available water spread for fisheries development in the reservoirs of Godavari River Basin, Telangana, India

Quantity and quality of groundwater resources distribution along Sirdarya province, Uzbekistan

Use of Landsat EVI in Determining the Degradation of Agroirriation Landscapes Adjacent to the Aydar-Arnasay Lakes System

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