成都地区居民疾病死亡率与元素背景关系初探

通过对成都市居民高死亡率的疾病类型和生命元素关系的探讨,并将其结果与成都市深、浅层土样相应元素背景值对比。结果表明:居民高死亡率的疾病与浅层土样中的有毒及过量有毒必需元素的含量成正相关,而与深层土样的生命元素偏低有关。

Geochemical Features of orchard economic districts in Chengdu Longquan hill regions

The rich lake and pond's sediments uplifted by new construction movement brings up the fruit regions of the Longquan hill. Different kinds of fruit trees adapt to different soil conditions. The rich organic substances, especially the quick result kalium ferlizer benefits the fruit tree's growth in Shuangliu Taiping orchards. The high K 2O, P, Mn and Se, in Jintang umbilical orange area, as complements on the interface of the ginger stone yellow soil and the yellow red purple soil are the main factors bringing up "Umbilical Orange Area No.1 in China". The N, K 2O and Se are abundant in Pujiang pear area, and the Cu, B, Mo, T Fe 2O 3 and Se are high in the tea zone with partial acidity soil. In these regions, the harmful elements in low quantity can help develop green agriculture.