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Asian Conference on Permafrost

作者： M.M.Shatz Zhang R.V. Shats Mark Mikhailovich candidate of geological scienceLeading scientist of Permafrost Institute677010Yakutsk10Merzlotnaya st.36 Permafrost institute Director677010Yakutsk10Merzlotnaya st.36

Long-term geocryological researches in mountain systems of the Sayan and the Altai let us draw a number of fundamental conclusions that serve as a basis for the main theses of the paper.1.A combination of various natural conditions in mountainous regions of the Altai and the Sayan determines quite considerable distribution of seasonally and perennially frozen *** frozen soils occupy about 20% of the region and are found at the majority of mountain geosy *** in nature of permafrost development,its thickness and temperature are mainly due to two geographic patterns of altitudinal zonality and meridional *** the same time an increase of permafrost area and its thickness,as well as a decrease of its temperature,are not of linear *** tendency of increase in severity of geocryological conditions depending on altitude and from west to east is of complex *** combination of natural-permafrost parameters within a single geosystem of the region allows making geocryological ***-scale development of mountainous regions of the Altai and the Sayan,including industrial,civil,transportation development and engineering,mineral resource industry etc.,should be carried out taking into consideration permafrost conditions of the region.

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Spatial Distribution of Main Engineering-Geological Groups of Frozen Ground and Related Geological Processes in Yakutia

Spatial Distribution of Main Engineering-Geological Groups o...

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第八届国际冻土工程会议

作者： Vladimir Spektor Yaroslav Torgovkin Rudolf Zhang Alena Shestakova Valentin Spektor Melnikov Permafrost institute SB RAS

＜正＞At the present time the russian Research institute of Hydrogeology and Engineering Geology （VSEGINGEO,Ministry of Natural Resources of the russian Federation） through cooperation with leading educational,geological,and scientific organizations within the country have compiled a Geographic Information System（GIS） based Engineering-Geological Map of Russia（scale 1:2,500,000）.Utilizing this map,it is possible to make a rapid assessment of some engineering-geological conditions for large territories within *** we report an assessment of ground conditions for the territory of the Republic of Sakha（Yakutia）.

关键词： permafrost engineering cryogenic processes cryolithozone Republic of Sakha(Yakutia)

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Calculation of the Temperature Field in the Embankment and Underlying Ground with Account for Uneven Snow Distribution

Calculation of the Temperature Field in the Embankment and U...

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第八届国际冻土工程会议

作者： I.P.Konstantinov G.P.Kuzmin A.V.Litovko Permafrost institute SB RASYakutskRussia

＜正＞Snow cover has a significant influence on the temperature regime of roadway *** high embankments,snow cover is unevenly redistributed by *** paper demonstrates the influence of snow on the ground temperature reg... 详细信息

关键词： embankment foundation soils snow cover temperature regime thermal resistance

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Engineering Measures to Protect the City of Yakutsk from Suprapermafrost Water Impoundment

Engineering Measures to Protect the City of Yakutsk from Sup...

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第八届国际冻土工程会议

作者： V.V.Shepelev Melnikov Permafrost institute SB RASYakutskRussia

＜正＞This paper discusses the ever-increasing problems of impoundment at Yakutsk related to anthropogenic disturbance of the natural drainage of suprapermafrost *** main factors that complicate effective control of impoundment and flooding are indicated,including the unsuitability of conventional drainage systems,impeded suprapermafrost runoff,suprapermafrost water formation in the so-called"cultural layer",and icings from leaking pipes.A combined drainage system consisting of main,street and local drain pipes is proposed to protect the urban area from suprapermafrost water *** tanks are recommended to provide gradients necessary to maintain continuous water flow in the drainage system.

关键词： drainage system,engineering measures impoundment paludification suprapermafrost water thermokarst

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Monitoring of Cryolithozone

Monitoring of Cryolithozone

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第八届国际冻土工程会议

作者： Akhat A.Akhmetshin Vladimir A.Grigoryev Vill S.Yakupov Ministry of nature protecting RS(Yakutiya) institute of space physic and aeronomy SB RAS YakutskRussia

＜正＞Monitoring of stationary and degradating cryolithozone parameters as consequences of quick climate changes by geophysical methods and possibility of their secular changes estimation are *** first stage of monitoring provides for a description of cryolithozone some number of in space distributed determinations of its parameters and their change with *** seems to be expedient estimation and study of the change with time of following parameters of frozen strata. *** layer thickness. *** of south border of frozen strata. *** annual temperature of frozen rocks. *** of interfaces,corresponding to thawing fronts in the bottom of degradating frozen strata consequently of a change of different physical properties on them. These parameters react on climate change in mentioned above order,beginning with active layer thickness. Possible indirect indications of significant fluctuations of frozen strata thickness in past may be often met zones of fractured rocks in their base as a result of many times repeated lingering changes of climate.A depth of saturated by salt solutions rocks freezing in ancient times at more cold epochs may be estimated by a study of anomalous increasing of subpermafrost waters mineralization. For safe determination of expected changes of parameters to be examined it is necessary to receive data, scattered both in space and in time in order to construct distribution functions and regression equations of studied parameters on time better for plains or their big sites,in general for landscapes of one type. Observations rrtust be independent,their number must be taken enough for a standard deviation for a given extract do not exceed average square error of observations.

关键词： active layer average annual temperature cryolithozone monitoring

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川西高原中国沙棘叶和小枝养分物质对海拔升高的响应

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福建农林大学学报（自然科学版） 2019年第3期48卷 392-397页

作者：李玲李森邓东周涂卫国 Vladimirov Dmitrii 四川省自然资源科学研究院四川成都610015 四川省林业科学研究院四川成都610081 Voronezh State University of the russian Federation NO.1 University Square

以川西高原不同分布区域的中国沙棘为研究对象,分别沿米亚罗2 450～3 080 m和川主寺2 870～3 550 m海拔范围,测定不同海拔下叶和小枝氮(N)、磷(P)与非结构性碳水化合物(NSC)含量.结果表明:(1)在两个区域随着海拔升高,中国沙棘叶和小枝N... 详细信息

以川西高原不同分布区域的中国沙棘为研究对象,分别沿米亚罗2 450～3 080 m和川主寺2 870～3 550 m海拔范围,测定不同海拔下叶和小枝氮(N)、磷(P)与非结构性碳水化合物(NSC)含量.结果表明:(1)在两个区域随着海拔升高,中国沙棘叶和小枝N、P、可溶性总糖(TSS)、淀粉、NSC等养分物质含量均呈非线性变化;(2)米亚罗区域叶N随着海拔升高的变化与叶NSC变化趋势一致,二者呈显著正相关关系,而在川主寺区域二者无显著相关性;(3)川主寺区域叶和小枝NSC含量整体上高于米亚罗区域,特别是小枝TSS含量较高,有利于其应对低温和干旱的环境,也可能是不利环境下碳投资受限导致;(4)在川主寺3 000 m以上的高海拔区域,叶N和光合碳水化合物供应充足,但光合产物的转运及转化为结构性物质可能受到了低温限制,全球气候变暖可能有利于中国沙棘生长和分布扩大。

关键词：海拔梯度叶氮非结构性碳水化合物中国沙棘川西高原

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