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钛元素在自然界中分布较广,其主要矿物种类有钛铁矿(FeTiO_3)和金红石(TiO_2)。土壤中含钛量较高,一般在3000—6000ppm之间,它通常与硅酸盐结合在一起,故不易被植物根系所吸收。土壤中有效钛通常在1ppm以下,植物体中的含钛量约为1—5ppm。
Titanium is widely distributed in nature and its main mineral species are ilmenite (FeTiO_3) and rutile (TiO_2). The soil contains a high amount of titanium, generally between 3000-6000ppm, it is usually combined with silicate, it is not easily absorbed by plant roots. The available titanium in the soil is usually below 1 ppm and the content of titanium in the plant is about 1 to 5 ppm.