摘要
山东黄河下游流域生态地球化学调查结果表明,鱼台稻米产地受3种不同的地质背景控制,其空间差异性主要表现在地貌、土体结构、水文条件、地球化学特征、人工扰动等因素。这种空间差异性致使稻米产量、质量产生明显差别;优质鱼台稻米产在鱼台县东部地势低洼地区,该区地下水位低,pH值微高,有益元素富集,营养水平高,其中N、Ca等有效态含量是缓平坡地区的2倍。但调查结果同时显示,水稻产区As、Pb等重金属元素也呈明显的富集状态,这与人类的生产生活密切相关,应予以重视。
Ecologic geochemistry investigation result along the lower reaches of the Yellow River in Shandong Province indicated that the Yutai rice producing area was controlled by three different geological backgrounds.Their spatial differences were mainly displayed in landform,soil-mass structure,hydrologic conditions,geochemical characteristics and artificial interference.The spatial difference diversified the rice output and rice quality.The high quality Yutai rice was produced east of the Yutai County,where the regional topography and subsoil water level were low,the PH value was higher,the beneficial element and nutritional level was high.The element of nitrogen and calcium contents were higher than near-level grade area.But the investigation results demonstrated that heavy metal elements such as arsenic and lead also assumed obviously concentration,and closely involved with human activities.
出处
《地质学刊》
CAS
2010年第2期175-177,共3页
Journal of Geology
关键词
地貌
地质背景
地球化学
山东鱼台
Landform
Geological background
Geochemistry
Yutai
Shandong
