Temperature and Precipitation Trend in the Aral Sea and Aral Sea Region During 1960-2016

Massakbayeva, Assiya; Abuduwaili, J.; Issanova, Gulnura; Bissenbayeva, Sanim; Issina, Botagoz

doi:10.32014/2019.2518-1467.63

Cited by 6 publications

(5 citation statements)

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“…Furthermore, the decrease in Pb contents in the upper sediment layers (from ≈2005) may show reduced atmospheric Pb pollution due to legal regulations. The studies of surface soils [70,71] and lake sediments [24] in arid regions of Central Asia show that heavy metals-such as Pb, Cu, and Zn-generally represent pollution by human activities; however, Zn in the sediments of Lake Bosten has not shown signs of significant influence by human activities. Human activities have had an important influence on the source of terrigenous clastic materials in the lacustrine sediments of Lake Bosten.…”

Section: Geochemical Elements and Their Reponses To Anthropogenic Infmentioning

confidence: 99%

Anthropogenic Influences on Environmental Changes of Lake Bosten, the Largest Inland Freshwater Lake in China

Liu

Abuduwaili

2020

Sustainability

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A short lacustrine sediment core (41 cm) from Lake Bosten in arid central Asia was used to investigate the environmental changes that occurred in the past ≈150 years based on the superposition of climate and anthropogenic factors. Geochemical elements, total organic carbon (TOC) and nitrogen (TN), and stable isotope data (δ13Corg and δ15N) were used to identify abnormal environmental changes. The average C/N ratio in the sediments of Lake Bosten suggested that the organic matter in lake sediments was mainly from aquatic plants. The δ13Corg and δ15N in the lake sediments mainly reflect changes in the structure of the lake’s ecosystem. Before the 1960s, the primary productivity of the lake was relatively low with a relatively stable lake water environment. From the 1960s to the mid-1980s, the lake’s ecosystem was closely related to a significant decline in water levels caused by human activities and an increase in salinity. From the late 1980s to ≈2000, the aquatic plant structure of Lake Bosten did not change significantly. After 2000, the upper part of the sedimentary record suggested enhanced productivity due to urban and industrial development in the catchment area. However, sedimentary perspectives of the responses of different environmental proxies in sediments to human activities were anisochronous, and the increasing heavy metal (Pb and Cu) and P accumulations appeared in 1970, reflecting heightened human impacts. Through the comparison between the Aral Sea and Lake Bosten, it was inferred that, under the intervention of human activities, the lake experienced a completely different evolution trend. Humans, as geological agents, should protect our living environment while satisfying social development. The results will provide an important supplement to a large spatial scale study of the influences of human activities on the environment in Central Asia, which also has some significant implications for the protection of the ecological environment and the realization of sustainable development in arid regions.

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Section: Geochemical Elements and Their Reponses To Anthropogenic Infmentioning

confidence: 99%

Anthropogenic Influences on Environmental Changes of Lake Bosten, the Largest Inland Freshwater Lake in China

Liu

Abuduwaili

2020

Sustainability

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“…Falling lake levels and surface area reductions have had profound effects on this fragile ecological environment. Moreover, the region’s climatic conditions have also changed drastically, and temperatures in the Aral Sea Basin have been rising at a speed of 3.2 °C/decade since 1960 ( Massakbayeva et al, 2019 ). At the same time, precipitation levels have exhibited a significant upward trend at a rate of 0.8 mm/decade ( Li et al, 2015 ; Massakbayeva et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the region’s climatic conditions have also changed drastically, and temperatures in the Aral Sea Basin have been rising at a speed of 3.2 °C/decade since 1960 ( Massakbayeva et al, 2019 ). At the same time, precipitation levels have exhibited a significant upward trend at a rate of 0.8 mm/decade ( Li et al, 2015 ; Massakbayeva et al, 2019 ). Therefore, knowledge of the current changes in and dynamics of ESVs in relation to climatic changes and anthropogenic activities is important for ecological monitoring and sustainability management in the Aral Sea Basin.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal changes, trade-offs, and synergistic relationships in ecosystem services provided by the Aral Sea Basin

Chen

Qian

et al. 2021

PeerJ

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Intense human activities in the Aral Sea Basin have changed its natural distribution of land use. Although they provide certain economic benefits, these anthropogenic influences have led to the rapid shrinkage of the Aral Sea, severely affecting the region’s ecosystem. However, the spatiotemporal variability of the Aral Sea Basin’s Ecosystem Service Values (ESVs) is not well understood. In this study, we used 300-meter resolution land use maps from 1995, 2005, and 2015 and the Patch-generating Land Use Simulation (PLUS) model to predict the future land use patterns of the Aral Sea Basin in 2025. Simultaneously, we divided the Aral Sea Basin into three regions (upstream, midstream, and downstream) and evaluated the dynamic responses of their ESVs to Land Use and Land Cover (LULC) changes. The changes in the types of ecosystem services provided by the Aral Sea Basin, their trade-off, and synergistic relationships were analyzed by weighting their associations. The results showed that from 1995 to 2025, the grassland, urban, and cropland areas in the Aral Sea Basin will expand rapidly, while the areas covered by water bodies will shrink rapidly, causing a total loss of 31.97 billion USD. The downstream loss of 27.79 billion USD of the total amount is mainly caused by the conversion of water bodies to bare land. The ESVs of the middle region will increase by 6.81 billion USD, mainly due to the large amount of water extracted from the Amu Darya and Syr Darya Rivers in the middle regions of the Aral Sea Basin that are used to reclaim cultivated land and expand urban areas. The ESVs and areas experiencing land use changes in the upper regions are relatively small. At the same time, our results show that biodiversity, food production, and water regulation are the major ecosystem service functions, and account for 79.46% of the total ESVs. Of the ecosystem service relationships in the Aral Sea Basin, synergy accounts for 55.56% of the interactions, with a fewer amount of trade-off exchanges. This synergy mainly exists in the relationships involving water regulation, waste treatment and recreation, and culture and tourism. We propose protection measures that will coordinate eco-environmental protection efforts with socioeconomic development in the region in order to achieve the United Nations’ sustainable development goals.

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“…The serious effects of climate change have already begun to manifest, and the latest example of this is that 2016 has overtaken 2015; It was the warmest year in history. According to the analysis of the World Meteorological Organization (WMO) of the United Nations Climate Agency, the average global temperature in 2016 was 1.1 o C above the previous period [1].…”

mentioning

confidence: 99%

Hydrology of the Vanch River the Tributary of the Transboundary Pyanj River Under Climate Change

Normatov¹,

Гончарук²,

Normatov³

et al. 2020

THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN

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Temperature and Precipitation Trend in the Aral Sea and Aral Sea Region During 1960-2016

Cited by 6 publications

References 0 publications

Anthropogenic Influences on Environmental Changes of Lake Bosten, the Largest Inland Freshwater Lake in China

Anthropogenic Influences on Environmental Changes of Lake Bosten, the Largest Inland Freshwater Lake in China

Spatiotemporal changes, trade-offs, and synergistic relationships in ecosystem services provided by the Aral Sea Basin

Hydrology of the Vanch River the Tributary of the Transboundary Pyanj River Under Climate Change

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