Fergana Valley Research Articles

Morphosolation characteristic of the flower of liliaceae rare species of the Namangan region of the areal distribution

The study of species of rare plants in the Fergana Valley suggests that the representatives of the taxis Lilliaceae form a large proportion of such species. The purpose of this theoretical work, taking into account the large area of the distribution area across the valley by family representatives Namangan and the factor of the reduction of this family, is aimed at studying the flower structure, which is the main morphofunctional cognition of the representatives of the liliaceae rare scattered throughout the Namangan region and their comparative analysis.

How robust are landslide susceptibility estimates?

Much of contemporary landslide research is concerned with predicting and mapping susceptibility to slope failure. Many studies rely on generalised linear models with environmental predictors that are trained with data collected from within and outside of the margins of mapped landslides. Whether and how the performance of these models depends on sample size, location, or time remains largely untested. We address this question by exploring the sensitivity of a multivariate logistic regression—one of the most widely used susceptibility models—to data sampled from different portions of landslides in two independent inventories (i.e. a historic and a multi-temporal) covering parts of the eastern rim of the Fergana Basin, Kyrgyzstan. We find that considering only areas on lower parts of landslides, and hence most likely their deposits, can improve the model performance by >10% over the reference case that uses the entire landslide areas, especially for landslides of intermediate size. Hence, using landslide toe areas may suffice for this particular model and come in useful where landslide scars are vague or hidden in this part of Central Asia. The model performance marginally varied after progressively updating and adding more landslides data through time. We conclude that landslide susceptibility estimates for the study area remain largely insensitive to changes in data over about a decade. Spatial or temporal stratified sampling contributes only minor variations to model performance. Our findings call for more extensive testing of the concept of dynamic susceptibility and its interpretation in data-driven models, especially within the broader framework of landslide risk assessment under environmental and land-use change.

The role of dumas in the adminstration system of the Fergana valley’s cities

This article, relying on the sources, clarifies the impact of political processes in the cities of Fergana Valley on the city administration in 1917. Moreover, the issues of establishment of Soviet government in the cities of Fergana Valley, leading political changes that took place in the cities, the role of Dumasin cities’ administration and the participation of local representatives in these processes are also discussed. The article concludes that the cities of the Fergana Valley in 1917 were among the political centers of Turkestan.

The influence of sedimentation reservoir on hydraulic parameters of irrigation channels

The article describes the influence of the exploitation condition of the reservoirs on the hydraulic parameters of the Big Fergana main channel in Fergana valley. Fractional and variable chemical composition of the sediments flowing with the water into the reservoir as well as their changes during the growing season is considered to be the main factor of this process. As a result of field experiments, it was found that the main share of sediments flowing into the reservoir consists of sand particles with a size of 0.01-0.1 millimeters. Analysis of the working effectiveness of the reservoir showed that 45-50% of these particles are kept within the reservoir, while the other pass further to the channel. Surveillance and experimental studies on the reservoir are mainly based on sedimentary particles of 0.10-0.05 and 0.05-0.01 mm and their water content is around 71-85.4%, with a larger size of 0.1 mm. and sediments with a diameter greater than the average for most of the aquifer. The obtained results indicate the influence of the sedimentary water reservoir on the hydraulic parameters and functioning capacity of the Big Fergana channel.

ФАРҒОНА ВОДИЙСИ ҚОРАҚАЛПОҚЛАРИДА АНЪАНАВИЙ ЧОРВАЧИЛИК ХЎЖАЛИГИНИНГ ЎЗИГА ХОС ХУСУСИЯТЛАРИ(хўжалик-маданий анъаналар тавсифи ва таҳлили)

In this article Karakalpaks, one of the biggest ethnoses living in Fergana valley, their economy related to livestock breeding, its peculiarities are revealed. Also, the history of the settlement of Karakalpaks from the valley on the Sirdarya river, ethno integrational processes in traditional livestock breeding are analyzed in the article as well.

Attenuation of High-Frequency P and S Waves in the Crust of Central and Western Tien Shan

In order to better understand the attenuation characteristics in the crust of the central and western Tien Shan orogenic belt, we investigate both Qp and Qs values by applying the extended coda-normalization method. We estimate the frequency-dependent attenuation of both P and S waves in the frequency band of 1.0–20.0 Hz using data from local networks. The average frequency relations of Qp and Qs have been derived as Qp = (61 ± 9) × f(1.21±0.08) and Qs = (77 ± 6) × f(1.11±0.04) by fitting a power-law frequency dependence model for the study region. The low Q0 and high η values indicate that the central and western Tien Shan is a tectonically and seismically active region. We also find lateral variations of both Qp,s and Qs/Qp values, reflecting complex tectonic structures in the study area. In general, the relatively high-attenuation areas corresponding to tectonically active regions are found beneath mountainous ranges in the central Tien Shan whereas the relatively low-attenuation areas are associated with stable regions, such as Fergana Basin and Issyk-Kul Lake. Besides, regions in the central Tien Shan with Qs/Qp > 1 are likely partially saturated with fluids or rich in scattering heterogeneities, whereas regions in the western Tien Shan display Qs/Qp < 1, possibly suggesting almost complete fluid saturation.

New sedimentological and palynological data from the Yarkand-Fergana Basin (Kyrgyz Tian Shan): Insights on its Mesozoic paleogeographic and tectonic evolution

The Talas Fergana/Karatau Fault, is a major tectonic boundary separating the Kazakh-Turan domain to the west from the Tian Shan domain to the east. During the Jurassic, movements along the fault led to the opening of several basins. Still, the Mesozoic kinematics of the fault and the geodynamic mechanism that led to the opening of these basins are largely unconstrained. Located at its southwestern termination, the Yarkand-Fergana Basin is certainly the best exposed and however still poorly understood. In this study, we provide new sedimentological description of the Jurassic series from the northern part of the Yarkand-Fergana Basin as well as new palynological data. Following a Middle–Late Triassic period dominated by regional erosion, the onset of sedimentation in the Yarkand-Fergana Basin occurred during the Sinemurian(?)–Pliensbachian. The basin opened as a half graben controlled by the Talas Fergana/Karatau Fault and separated from the Fergana Basin by basement highs. Extension persisted during the late Pliensbachian–Middle Jurassic, leading to a general widening of the Yarkand-Fergana Basin. Finally, Late Jurassic–Early Cretaceous renewed tectonic activity in the area led to the inversion of the north Yarkand-Fergana Basin. The Early to Middle Jurassic timing of development of the Yarkand-Fergana Basin suggests that the coeval movements along the Talas Fergana/Karatau Fault are not associated to the collision of the Qiangtang block along the southern margin of Eurasia. We favor the hypothesis of an opening controlled by transtension related to far field effects of back-arc extension along the Neo-Tethys subduction zone to the west.

CRIMINALS AMONG THE WOMEN IN THE FERGHANA VALLEY AND ITS NEGATIVE EFFECTS

In this article is discussed process of criminals among the women in the Ferghana valley and its negative effects by the media sources and materials of juridical documents as well. KEY WORDS: Ferghana valley, women, nationality, upbringing, morality, ethics, Gender, result, offence.

ФАРҒОНА ВОДИЙСИДА СУҒОРИШ ИШЛАРИНИНГ ПАХТАЧИЛИКНИ РИВОЖЛАНТИРИШГА ЁъНАЛТИРИЛГАНЛИГИ ВА УНИНГ ОҚИБАТЛАРИ (ХХ АСРНИНГ 50-70 ЙИЛЛАРИ МИСОЛИДА)

In the article the state of irrigation-land-reclamation of Ferghana valley in the condition of cotton monopoly in 1950-1970 is closely observed. Besides, the measures on improvement of irrigation system by Soviet government and their results are analyzed in the article on the grounds of primary sources

Political processes in the fergana valley at the turn of the XVI - XVII centuries

The article analyzes the political processes that took place in the Fergana Valley in the late 16th and early 17th centuries. Based on historical sources and available scientific literature, the issues of the exclusion of the Fergana Valley from the Shaybanid state and the occupation of the Fergana Valley by the Kazakh sultans were studied.

СТЕКЛЯННЫЕ ИЗДЕЛИЯ ДОМОНГОЛЬСКОГО ПЕНДЖИКЕНТА И ЕГО ОКРУГИ

The period of High Middle Ages witnessed the development of glassmaking in Central Asia. The paper presents glass articles from pre-Mongolian Penjikent and its suburbs. The Penjikent col- lection contains all major groups of glass articles recognized in the functional classification tradi- tionally used in the region: table glassware (fig. 1; 2; 3, 1–7; 4, 1, 2; 5, 8; 6, 15, 17), perfume and drug jars (fig. 2, 13; 5, 4–7, 9, 10), chemical glassware (fig. 4, 7), household items (fig. 3, 6; 4, 3–5; 5, 1–3; 6, 16), adornments (fig. 5, 11–13) and window-glass (fig. 6, 1–14). The material under study can be dated to the X–XII cc. These glass articles find analogies in the materials from Samarkand, Tash- kent oasis, Bukhara, Fergana valley, Northern Tokharistan, as well as some synchronous urban centers on the territory of modern Kazakhstan. There is also a tendency to a certain uniformity (fashion) in the main types of glass articles that were produced during that period in both Central Asia and the Near East.

“Cleanups” of the soviet government in government offices (on the example of government agencies in the Fergana valley)

“Cleanups” of the soviet government in government offices (on the example of government agencies in the Fergana valley)

Tourist opportunities of the regions for the development of tourism in the fergana valley

Tourist opportunities of the regions for the development of tourism in the fergana valley

Source studies of the food problem in the Fergana valley (1917–1924)

Source studies of the food problem in the Fergana valley (1917–1924)

Activities of doctors in the fergana valley (late 19th - early 20th centuries)

Activities of doctors in the fergana valley (late 19th - early 20th centuries)

Fergana valley: Geo-ecological problems and concepts for their solution

Fergana valley: Geo-ecological problems and concepts for their solution

The state of the food industry in the fergana valley regions during the second world war

The state of the food industry in the fergana valley regions during the second world war

Principles of forming a garden-park landscape design around historical monuments of the fergana valley

Principles of forming a garden-park landscape design around historical monuments of the fergana valley

Structure and content of the fergana valley ecological atlas

Structure and content of the fergana valley ecological atlas

Maintenance of seismic safety in sphere of individual available housing of Fergana valley

Maintenance of seismic safety in sphere of individual available housing of Fergana valley