| Analysis of seasonal variation of topsoil salinization in Yutian Oasis |
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| DOI：10.7606/j.issn.1000-7601.2014.06.029 |
| Key Words: topsoil salinity spatial variability depth of under ground water semi-variance geostatistical analysis Kriging interpolation Yutian Oasis |
| Author Name | Affiliation | | SONG Yu1,2, Tashpolat TIYIP1,2, WU Xue-mei1,2, JIANG Hong-tao1,2, TAO Lan-hua1,2, ZHOU Mei1,2, Mamat Sawut1,2 | （1.新疆大学资源与环境科学学院, 新疆 乌鲁木齐 830046
2.新疆大学绿洲生态教育部重点实验室, 新疆 乌鲁木齐 830046） |
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| Abstract: |
| Based on the open field measured data, with the aid of the conventional statistics and geo-statistics analysis method, this paper takes Yutian Oasis as study area and analyses the distribution of the topsoil salinization degrees in spring and summer of 2012 in this area. The results reveal that (1) Through statistical parameter analysis, Yutian Oasis belongs to strongly salinized area, where the topsoil salt content averages 18.2 g·kg-1, the coefficient of variation is between 109.5%～115.6%, belonging to the strong spatial variability. (2) By the judge of semivariogram analysis, the surface spatial distribution of soil salinity shows a strong correlation. (3) Through Kriging method analysis, the conclusion shows that in the oasis, the soil surface salinity from spring to summer has the same tendency; Inside the oasis, as the underground water is deeply buried, the salt content is lower, and the soil alkaline is small; While in the surrounding area of the oasis, as the depth of underground water is shallow, the salt content is higher, and the soil alkaline is simultaneously higher. |
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