Climatic implications on variations of Qehan Lake in the arid regions of Inner Mongolia during the recent five decades

Xia, Chun-hong; Su, Riguge; Liu, Jiyao; Liang, Wenjun; Yong, Mei; Ulambadrakh, Khkhuudei

doi:10.1007/s10661-016-5721-5

Cited by 15 publications

(8 citation statements)

References 43 publications

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“…These include corn, fruiting vegetables, grape, cotton, okra, stone fruit, and tobacco. By stimulating ryanodine receptors (ryanodine-sensitive calcium-release channels), flubendiamide disrupts the muscle functions in insects [ 5 ]. The wide use of this compound raised the concern about their impact on the environment, food safety and human health.…”

Section: Introductionmentioning

confidence: 99%

Flubendiamide Enhances Adipogenesis and Inhibits AMPKα in 3T3-L1 Adipocytes

et al. 2018

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Flubendiamide, a ryanoid class insecticide, is widely used in agriculture. Several insecticides have been reported to promote adipogenesis. However, the potential influence of flubendiamide on adipogenesis is largely unknown. The current study was therefore to determine the effects of flubendiamide on adipogenesis utilizing the 3T3-L1 adipocytes model. Flubendiamide treatment not only enhanced triglyceride content in 3T3-L1 adipocytes, but also increased the expression of cytosine-cytosine-adenosine-adenosine-thymidine (CCAAT)/enhancer-binding protein α and peroxisome proliferator-activated receptor gamma-γ, two important regulators of adipocyte differentiation. Moreover, the expression of the most important regulator of lipogenesis, acetyl coenzyme A carboxylase, was also increased after flubendiamide treatment. Further study revealed that 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR) or A769662, two Adenosine 5′-monophosphate (AMP)-activated protein kinase α activators, subverted effects of flubendiamide on enhanced adipogenesis. Together, these results suggest that flubendiamide promotes adipogenesis via an AMPKα-mediated pathway.

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Section: Introductionmentioning

confidence: 99%

Flubendiamide Enhances Adipogenesis and Inhibits AMPKα in 3T3-L1 Adipocytes

et al. 2018

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“…The mean annual temperature is ∼ 3.5°C. The annual precipitation in the basin is ∼ 270 mm (Chun et al, 2017;Li et al, 2020), and more than 70% of the rainfalls occur in the rainy season (June to September) which is transported by the EASM from the Pacific and the Indian Ocean. The modern vegetation landscape in the region is typical dry steppes consisting primarily of grasslands, sandy deserts, and few forests.…”

Section: Geographical Settingmentioning

confidence: 99%

“…Liu and Ha (2015) has reconstructed the lake level since the past 6.8 ka by using paleolake shoreline records, and it showed that the paleolake level was at least 7 m higher than the present and gradually shrank till now. Chun et al (2017) and Chun et al (2018) has reported the variations of precipitation, temperature, and population in recent 50 years and further pointed out their effects on the changes of the lake level and vegetation coverage, and the results suggested that the variation of precipitation was the most fundamental factor for the recovery of vegetation and the rise of the lake level.…”

Section: Introductionmentioning

confidence: 99%

The Elements and Color of Lacustrine Record Revealed Lake Environmental Changes in Semiarid Northern China: A Case Study From Chagan Nur Lake of Southern Mongolian Plateau

Wang

et al. 2021

Front. Earth Sci.

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The lakes at the southern Mongolian Plateau are sensitive to the variation of EASM changes during the Holocene, and hence the lacustrine records of these lakes provide prospects for understanding how lake environmental changes respond to EASM variation at different timescales. The interpretation of proxy indexes of lacustrine sediments is complex due to the various climatic or/and environmental factors influencing the processes during deposition and after deposition. In this study, the elements and colors of an 11.7-m lacustrine record from Chagan Nur at the southern Mongolian Plateau of northern China were analyzed to constrain the lake environmental changes during the Holocene. The results show that stable elements of Al, Si, K, Ti, Fe, and Rb are more related to surface erosion or/and vegetation coverage, and the variation of Sr is related to the lake-level change in Chagan Nur. The element and color of the lacustrine records show that a small and shallow lake environment occurred at Chagan Nur during 11.7–10.5 ka, the lake level had increased during 10.5–7 ka, and then the lake shrank with strength surface erosion during 7–6.2 ka and from 2 ka to the present. The lake level and surface erosion changes of Chagan Nur have shown a direct response to EASM precipitation changes as reconstructed from the pollen record from the Chagan Nur Lake and other records from northern China.

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“…There are hundreds of lakes with areas of greater than 50 km 2 in northern China, and under the drastic climate change and unreasonable human development, a large number of these lakes have shrunk and become dry lake beds. These lake beds are generally flatter and have lower slopes (Chun et al, 2017), no vegetation cover, and a surface composed of loose salt-rich sedimentary particles (Yang L.-R. et al, 2007;Liu et al, 2010). These surfaces are exposed to windy conditions year-round and are highly susceptible to wind erosion, leading to unavoidable air pollution and environmental problems in arid and semi-arid regions (Shao et al, 2011;Von Holdt et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of dust emissions from lakes during different drying stages in a semi-arid grassland in northern China

Ren

Dang

et al. 2023

Front. Environ. Sci.

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Semi-arid playas are important to grassland ecosystem species as an important source of global dust emissions. However, there is a lack of data on dust emissions during the different drying stages of grassland playas. In this study, we initially conducted the field experiments on two types of surfaces (intermittently dried and permanently dried) in playas located in semi-arid regions in northern China, and we measured dust emissions at five wind speeds in spring when wind erosion was frequent. The results showed that the intermittently dried surface was more prone to wind erosion, which was primarily due to the formation of a loose and fragile salt crust on the surface. In addition, the proportion of salt in the dust was higher than that for the permanently dried surfaces. Nevertheless, the total horizontal dust flux (1.13–2.3 g/cm2·min) from the intermittently dried surface was only 5%–15% that of the permanently dried surface (7.47–42.86 g/cm2·min). The dust content varied linearly with the height of the intermittently dried surface, and varied exponentially with the height of the permanently dried surface. The particles collected on the intermittently dried surface were larger (<63 μm) than those collected on the permanently dried surface (<10 μm), and the unit mass concentration of each ion (mainly Na+, Cl−, and SO42−) in the salt dust was also higher for the intermittently dried surface than for the permanently dried surface. Although salt dust was continuously released from the intermittently dried surface, the total amount released each time was limited. These results indicate that to attenuate the damage of salt dust storms, priority should be given to protecting permanently dried surfaces and reducing the supply of salt dust particles at the surface.

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Climatic implications on variations of Qehan Lake in the arid regions of Inner Mongolia during the recent five decades

Cited by 15 publications

References 43 publications

Flubendiamide Enhances Adipogenesis and Inhibits AMPKα in 3T3-L1 Adipocytes

Flubendiamide Enhances Adipogenesis and Inhibits AMPKα in 3T3-L1 Adipocytes

The Elements and Color of Lacustrine Record Revealed Lake Environmental Changes in Semiarid Northern China: A Case Study From Chagan Nur Lake of Southern Mongolian Plateau

Mechanisms of dust emissions from lakes during different drying stages in a semi-arid grassland in northern China

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