| Cite this article: | 张云云,张毓涛,李吉玫.天山北坡融雪期林地、草地、裸地融雪特性及其影响因素分析[J].灌溉排水学报,0,():-. |
| ZHANG Yunyun,ZHANG Yutao,LI Jimei.天山北坡融雪期林地、草地、裸地融雪特性及其影响因素分析[J].灌溉排水学报,0,():-. |
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| Analysis of snowmelt characteristics and influencing factors in forest land, grassland and bare land during the snowmelt period on the northern slope of Tianshan Mountain |
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ZHANG Yunyun1,2,3,2, ZHANG Yutao4, LI Jimei4
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1.Institute of Forest Ecology,Xinjiang Academy of Forestry;2.China;3.College of Resources and Environmental Sciences,Xinjiang University;4.Institute of Forest Ecology, Xinjiang Academy of Forestry
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| Abstract: |
| In order to compare and analyze the snow characteristics of different underlying areas and their influencing factors, real-time monitoring of snow-covered woodland, grassland, bare snow characteristics, meteorological factors and soil factors was carried out, and Pearson correlation analysis method was used to compare and analyze meteorological factors and soil factors. Correlation with the snow characteristics of the three underlying surfaces to screen out the important meteorological factors and soil factors affecting the snow characteristics. The results show that the average snow depth of the forest, grassland and bare land during the snowmelt period is 8.06 cm and 18.67 cm,16.34 cm; the average snow density and average liquid water content of the snow cover in the forest are higher than that of the grassland and bare land, respectively 0.48 g.cm -3 and 0.66%; the average snow cover temperature of the forest (-0.032 ° C) is smaller than the grassland and bare The depth of bare snow in the snowmelt period was significantly negatively correlated with the snow temperature and solar radiation, and the correlation coefficients were -0.946, -0.960, respectively; the grass snow density was significantly positively correlated with solar radiation (r=0.908, p< 0.05); bare snow density, liquid water content, snow layer temperature and atmospheric temperature are significantly positively correlated; soil moisture content at 10 cm during snowmelt and forest, grassland, bare land snow There was a significant positive correlation between the soil moisture content at 20 cm and the liquid water content at bare soil. The soil moisture content at 30 cm is significantly negatively correlated with the snow depth of the grassland, and was significantly positively correlated with the liquid water content of the grassland. The soil layer temperature at 10 cm was significantly negatively correlate with bare snow depth (r=-0.955, p<0.05); the soil layer temperature at 30 cm is significantly negatively correlated with the snow depth of the grassland, and is significantly correlated with snow density. Positive correlation. The research results provide a theoretical basis for further quantitative exploration of the process of melting snow production. |
| Key words: snow characteristics; meteorological factors; soil temperature; soil moisture content ; northern slope of Tianshan |
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