| 王 文.成都平原土壤中Cd的空间分布与成因探讨[J].地质与勘探,2013,49(2):352-358 |
| 成都平原土壤中Cd的空间分布与成因探讨 |
| Study on the Spatial Distribution and Genesis of Cd in Soil of Chengdu Plain |
| 投稿时间：2012-03-07 修订日期：2012-10-20 |
| DOI： |
| 中文关键词: 表层土壤 Cd 空间分布 冲积扇 成都平原 |
| 英文关键词: Surface soil, Cd, spatial distribution, alluvial fan, Chengdu Plain |
| 基金项目:成都经济区生态地球化学调查（200214200027）资助 |
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| 中文摘要: |
| [摘 要]通过样品采集和室内分析,研究了成都平原区土壤中Cd高含量区的区域分布特征和形成原因。在绵远河、石亭江流域冲积物中存在Cd含量高值区.Cd高含量区域分布Ⅰ、Ⅱ级阶地-Ⅲ级-Ⅳ级或Ⅴ级阶地冲击物中Cd含量逐渐降低。发育与龙门山的河流（绵远河、石亭江）沉积物Cd含量显著高于其他水系沉积物。Cd高含量分布区与不同级次的阶地相吻合的特征表明其控制因素显著，属于地质作用的产物。这一结论与多数研究者认为的人为因素引起的具有根本区别。 |
| 英文摘要: |
| Abstract: Through sample collection and laboratory analysis, this paper studied the distribution features and genesis of Cd in the soil of the high content areas in Chengdu Plain which lied in the alluvium of Mianyuan River and Shiting River basin. The high content areas of Cd distributed in alluvium of Terrace 1 and 2, and that gradually decreased from Terrace 3 to Terrace 5. The content of Cd in alluvium in the two rivers which developed in Longmeng Mountain was remarkably higher than that of other water system. The feature that the high content areas of Cd inosculated with the different terraces indicated that it’s the production of geological processes as an evident controlling factor. This conclusion was radically different from most investigators’ opinion that it’s a result of human factors. |
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