黄河三角洲表层土壤重金属元素的空间分布及其影响因素

• Published in: Hăiyang dĭzhĭ yu dĭsĭjĭ dĭzhĭ Vol. 36; no. 1; p. 57
• Main Authors: MIAO Xiongyi, Yupei, HAO, YANG Lianjin, YE Siyuan, CHEN, Weihai, WANG, Ting, CHEN, Hongfeng, HUANG Baojian
• Format: Journal Article
• Language: Chinese
• Published: Beijing Marine Geology and Quaternary Geology 01.01.2016
• Subjects: Cadmium; Chromium; Contamination; Copper; Deltas; Distribution; Distribution patterns; Fluvial sediments; Heavy metals; Lead; Mercury; Mercury (metal); Metals; Natural gas exploration; Oil and gas exploration; Oil exploration; Organic matter; Pollution; Rivers; Soil; Soil contamination; Soil surfaces; Soils; Spatial distribution; Wetlands; Zinc
• ISSN: 0256-1492
• DOI: 10.16562/j.cnki.0256-1492.2016.01.005

主要针对黄河三角洲表层土壤及沉积物的重金属分布调查,2006-2008年间采集表层土壤样品219个(其中浅海湿地25个),运用先进的现代分析测试手段进行测试,得到黄河三角洲表层土壤中重金属元素的富集程度为:Cr > Pb > Zn > As > Cu > Cd > Hg,浅海湿地中近海表层沉积物中重金属元素的富集程度较低,并根据研究区重金属的分布,将三角洲划为三个区域,北部油气开采影响区,中部黄河河流影响区,南部农业活动和生活污水排放联合影响区,黄河三角洲表层土壤中虽然具有较高的有机质,但是其对上三角洲平原表层土壤中重金属元素仅具有中等以下的富集作用,而对浅海湿地近海沉积物中的重金属具有中等以上的富集作用。