| 摘要: |
| 为了探明阿拉山口大风对地表土壤粒度分布的影响，本文选取阿拉山口风向影响下的阿拉山口地区（A区域），博河、精河下游河岸带（B区域），阿奇克苏河下游河岸带（C区域）作为研究区，三个区域的表层土壤作为研究对象，以艾比湖湿地表层土壤粒度测试实验为基础，分析土壤粒度及空间分布的特征。平均粒径结果表明：阿拉山口区、博河，精河下游河岸带、阿奇克苏河下游河岸带粒径分别为101.49 μm、77.54 μm、49.82 μm；偏度特征为：三个区域的偏度均值结果显示为正偏态，分别为为4.01（阿拉山口区域）、3.71（博、精河区域）、2.77（阿其克苏河区域）。土壤质地分级结果为：阿拉山口区土壤质地以粗砂为主，博河，精河下游河岸带以沙砾和粉砂为主，阿奇克苏河下游河岸带以粉砂为主。上述结果定量地揭示了阿拉山口常年的风力侵蚀作用及其人类活动对该区域表层土壤粒度的影响。 |
| 关键词: 土壤粒度 土壤质地 空间分布 艾比湖湿地 |
| DOI： |
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| 基金项目:新疆维吾尔自治区重点实验室开放基金（XJDX0909-2012-10)；国家自然基金（41171036） |
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| Analysis of soil granularity in Ebinur Lake wetland |
| WANG Yong-hui1,2, HE Xu1,2, Hai Miti·Yimiti1,2 |
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| Abstract: |
| Three typical regions were selected in Ebinur Lake wetland of Xinjiang in China, and the soil granularity contents were determined. Based on the data information, statistics method was employed to analyze the impact of winds in Alashankou on distribution of soil granularity. The results showed that: the average granularity of the soil were 101.49 μm, 77.54 μm and 49.82 μm respectively in Alashankou area (Region A), Bo River and Jinghe downstream riparian (Region B) and Aqikesu River riparian (Region C). The skewness of three regions show positive, and the mean values were 4.01, 3.71 and 2.77. The results of soil texture show the main ingredient is grit in Alashankou area, gravel and silt in Bo River and Jinghe downstream riparian and silt in Aqikesu River riparian. The human activities and perennial wind erosion in Alashankou mainly influence the characteristics of the soil granularity in Ebinur wetland. The study reveals the forming process of soil, as well as in providing scientific reference for restoring of soil degradation and dust resistance of the region studied. |
| Key words: soil granularity soil texture spatial distribution Ebinur Lake wetland |
