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51.
The technique for socioeconomic assessment of the social implication of game husbandry (SIGH) in the Siberian Federal District (SFD) as a whole, and in separate regions has been tested. We provide the algorithm for calculating SIGH that implies combining the most important ten effectiveness measures of game management. Regional indicators of SIGH are compared with volumes of agricultural production. The constituent entities of the SFD are shown, in which the size of SIGH predominates over the respective coefficient of agriculture. We identified the main factor for change in the population dynamics of ungulate animals which has a social, rather than a biological, origin. Emphasis is placed on a number of currently important problems in hunting nature management: the disproportion of the consumer demand toward a single kind of fur raw materials and no demand for most of the other kinds, and low profitability of the fur product. The constituent entities of the SFD are ranked according to the socioeconomic significance of game husbandry. An analysis is made of the dynamics of supplies of fur products and fur market performance. For the first time, we have shown the minimum allowable magnitude of value of SIGH for separate regions of the SFD. We determined the tendency for a steady increase in SIGH in accordance with different socioeconomic phenomena. The findings suggest the conclusion that the issues of s further development of game husbandry are to be dealt with at the governmental level. 相似文献
52.
Implications of infusion of small (compared to the pore space) amounts of water for the dynamics of fracturing are studied
in the laboratory experiments on the models of a heterogeneous geological medium. Variations in the acoustic emission that
precede macrofracture are analyzed, including as candidate precursors. In all experiments, the macrofracture had occurred
not immediately after the mechanical loading or water infusion but with a time-delay after a period of acoustic quiescence
and subsequent activation. The enhancement in acoustic activity preceding macrofracture is well reproduced by the exponential
law; the correlation between the actual number of events (or the released energy) and the exponential approximation exceeds
the 95% confidence level. The power law is slightly worse although also a confident approximation of the acoustic emission
process. The facts of subsequent occurrence of quiescence and activation suggest that, in principle, this phenomenon can be
used as a precursory signature in the prediction of macrofracturing. 相似文献
53.
昆仑山地震前后基线变化特征研究 总被引：1，自引：0，他引：1
应用中国地壳观测网络GPS基准站连续观测资料,研究了昆仑山地震前后基线长度及方向的变化特征;根据昆仑山地震破裂方向,讨论了不同方位基线变化特征的差异性,并从理论上探讨了基线长度与基线方向变化的灵敏性问题.研究结果表明:1)当基线方向与地震破裂方向近于一致时,基线长度的灵敏性要高于基线方向的灵敏性;2)当基线方向与地震破裂方向近于垂直时,基线方向的灵敏性要高于基线长度的灵敏性;3)当基线方向与地震破裂方向成45°时,基线长度和基线方向在震前有可能发生显著的变化. 相似文献
54.
E. A. Ponomarev A. D. Bazarzhapov V. F. Petrukhin I. V. Poddubnaya 《Geomagnetism and Aeronomy》2010,50(7):854-859
The possibility of the occurrence of sporadic layers in the ionospheric dynamo region due to the formation of thin layers
with large plasma pressure gradients balancing the Ampere force is considered. Observational data confirming the validity
of such an approach are presented. 相似文献
55.
Kusumita Arora R. K. Chadha Y. Srinu Adrien Selles Srinagesh Davuluri Vladimir Smirnov Alexander Ponomarev V. O. Mikhailov 《Journal of the Geological Society of India》2017,90(6):670-677
We present the results of the first airborne LiDAR survey flown in the Koyna-Warna region and examine the relationship between the lineament fabric and the ongoing seismicity in the region. Our studies reveal that earthquakes of M≥4.0 for the period 1968 to 2016 are strongly correlated with a 10 km wide N-S fracture zone, which not only represents the surface expression of seismically active basement faults, but also act as conduits for water percolation between the Koyna and Warna reservoirs. A decreasing trend in the annual distribution of earthquakes was observed from 1985. A new burst of seismic activity in 1993 followed the impoudment of the Warna reservoir. We report a change in annual seismicity pattern, where seismicity peaks during September and December in the pre-Warna period, with a new peak emerging during March-April subsequent to the impoundment of Warna reservoir. A model is proposed to explain the seismicity along dominant N-S lineaments and the impact of Warna reservoir impounding which altered the hydrogeologic regime in the region. 相似文献
56.
57.
The works in the alternative direction of magnetospheric studies are reviewed. In contrast to the traditional approach, where the basis process is magnetic field line reconnection, transformation of kinetic energy into electromagnetic one at the bow shock front is the basis process in the proposed approach. It has been indicated that this new paradigm makes it possible to overcome the main difficulties that remained within the scope of the previous paradigm. It has been briefly demonstrated how several following processes and phenomena are explained within the scope of the new approach: (1) transformation of the solar wind kinetic energy into the electromagnetic energy; (2) electromagnetic energy transfer into the magnetosphere; (3) organization of the system of bulk currents, formation of field-aligned currents from the magnetosphere, and compatibility of these currents with the ionospheric current systems; (4) shape, value, and dynamics of the particle precipitation auroral regions; and (5) substorm expansion (auroral breakup). Other possibilities of the new approach and paradigm replacement consequences are briefly considered. 相似文献
58.
Nadia Solovieva Vivienne J. Jones Larisa Nazarova Stephen J. Brooks H. J. B. Birks John-Arvid Grytnes Peter G. Appleby Tommi Kauppila Boris Kondratenok Ingemar Renberg Vasily Ponomarev 《Journal of Paleolimnology》2005,33(4):463-482
The recent sediments from two deep arctic lakes, Mitrofanovskoe and Vanuk-ty, situated in the permafrost belt within the Bolshezemelskaya Tundra in the northern Ural region, were studied for diatoms, chironomids, spheroidal carbonaceous particles and stable lead isotopes. The magnitudes and rates-of-change in diatom and chironomid assemblages were numerically estimated. Instrumental climate records were used to assess statistically the amount of variance in diatom and chironomid data explained by temperature. August and September air temperatures have a statistically significant effect on diatom composition at both lakes. At Mitrofanovskoe Lake, major compositional changes in diatom and chironomid assemblages occurred at the turn of the 20th century and might be related to the regional increase in temperature. Chironomid-inferred air temperature also increased by approximately 1 °C since the early 1900s. At both lakes diatom compositional changes, coincident with the increase in June and September temperatures, also occurred in the late 1960s. These compositional changes are correlated with the increase in diatom production, sediment organic content and diatom species richness, and are likely to be a diatom response to the lengthening of the growing season. These changes are also correlated with the circum-Arctic temperature increase from the 1960s. A chironomid response to the late 1960s temperature increase was less pronounced at both lakes. Pollution levels are relatively low and pollution history is unrelated to ecological changes. Both lead isotopes and spheroidal carbonaceous particles show a clear atmospheric pollution signal, peaking in the 1980s. 相似文献
59.
E. I. Ponomarev E. G. Shvetsov V. I. Kharuk 《Izvestiya Atmospheric and Oceanic Physics》2016,52(7):725-736
Spatial and temporal patterns of vegetation fires in the Russian part of Altai-Sayan region over the period of instrumental satellite observations (1996–2014) have been studied. The distribution of fires by landscape categories, natural zones, altitudinal belts, and terrain profile forms is presented. We estimate the confinement of fire development in forests dominated by dark coniferous, light coniferous, and deciduous forest stands. The results are standardized taking into account the ratio between plant-cover areas of the selected categories, classes, and zones in the region. We have found an exponential decrease in the number of fires in the area of transition from plains and lowlands to highlands. Middle mountains are characterized by the largest burnt areas. Up to 50% of all fires are observed in the northern and adjacent slopes. The fire occurrence on concave slopes is 40% higher than that on convex slopes. The logarithmic growth in the number of burnt areas and fire frequency was found for all natural zones (forest, steppe, and forest steppe); the greatest seasonal variability in fire frequency and fire statistics is observed in the forest-steppe zone of the region. It is shown that the spatial distribution of fires is in agreement with the selected climatic facies. On the whole, the long-term dynamics of forest burning in the Altai-Sayan region and Siberia is strongly related to the variation of meteorological parameters characterizing climatic changes. 相似文献
60.
Kartseva T. I. Smirnov V. B. Patonin A. V. Sergeev D. S. Shikhova N. M. Ponomarev A. V. Stroganova S. M. Mikhailov V. O. 《Izvestiya Physics of the Solid Earth》2022,58(4):576-590
Izvestiya, Physics of the Solid Earth - Abstract—The acoustic emission (AE) patterns observed in laboratory conditions at the initiation of fracture in rock samples by fluids of different... 相似文献