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[1]HU Ming,LIU Zhi-hui,CHEN Kai,et al.Characteristics of Soil Temperature Analysis Under the Influence of Snow Cover in the Ablation Period of Seasonal Frozen Soil[J].Research of Soil and Water Conservation,2013,20(03):39-43.

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Characteristics of Soil Temperature Analysis Under the Influence of Snow Cover in the Ablation Period of Seasonal Frozen Soil

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 03 Page number: 39-43 Column: Public date: 2013-06-28

Title:: Characteristics of Soil Temperature Analysis Under the Influence of Snow Cover in the Ablation Period of Seasonal Frozen Soil

Author(s):: HU Ming^1,2, LIU Zhi-hui^1,2,3,4, CHEN Kai^1,5, WANG Rong-jun^1,2, Zhang Wen-na^1,2; 1. College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;
2. Oasis Ecology Key Lab of Ministry of Education, Urumqi 830046, China;
3. Institute of Arid Environment of Xinjiang University, Urumqi 830046, China;
4. International Center for Desert Affairs-Study on Sustainable Development in Arid and Semi-arid Lands, Urumqi 830046, China

Keywords:: snow cover; soil temperature; snow melting period

CLC:: P463.25

DOI:: -

Abstract:: Changes in soil temperature directly affect the process of freezing and thawing of seasonal frozen soil, while frozen soil is an important underlying surface of influencing snowmelt runoff and runoff yield mechanism, and is often the key to the occurrence of flood in spring. Therefore, deeply researching the temporal and spatial characteristics of soil temperature has important practical significance. Taking Juntang River watershed of the north slope of Tianshan as studying area, and applying the method of fixed-point comparison and continuous observation, making use of temperature data of shallow surface (0, 10, 20, 30, 40 cm) soil temperature of two different underlying surface, the snow-cover and bare ground, melting snow period from March 12th to April 1st, 2010, the relationship of the depth of each layer changes in soil temperature, snow cover’s impact and the relationship between near-surface air temperature were comparatively analyzed. The results showed that snow cover had the significant impact of insulation capacity on shallow soil temperature; from shallow to deep, soil temperature changes of every layer showed the phenomenon of delivery and delays; soil diurnal temperature also decreased with the increasing depth of the soil layer; near surface air temperature and soil temperature had the high correlation, diurnal variation of soil temperature showed a single peak single-valley fluctuations.

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