A Study on a Long Distance Transportation of Acid Materials and Relationships between the Growth of Trees and Acid Fallout

本文对人工降雨对红树林、锯缘栎树和沙棘树幼树的可见损伤情况和生长反应进行了试验研究。将种植在人工酸化土壤上的树苗种植在人工酸化土壤中140天后，分析土壤中Al~(2+)、Mn~(2+)、Ca~(2+)、Na~+、K~+的含量，以明确各离子与各树苗生长抑制的关系。因此，这些树苗在土壤中的生长反应不随Al^&lt；3-&gt；和Mn^&lt；2+&gt；的种类而变化，但这些干生长随着外加硫的增加而下降，并影响H~+。推测由于Ca^&lt；2+-gt；和K^+含量较高，反而会产生多余的失效。

In this paper, this experimental study has carried out with the situation of the visible damage and the growth reaction of saplings of ceder, Quercus serrata and sila oak by artificial rain. For 140 days, these saplings planted on the artificially acidified soil were grown in the soil acidified artificially, and last the amount of Al^<3->,Mn^<2+>,Ca^<2+>,Na^+,K^+ in the soil was analyzed to clarify the relationship between each ion and check of the growth to each sapling. Consequently, the growth response of these saplings in the soil didn't vary with the kind of Al^<3-> and Mn^<2+>, but these dry growths fell down with influencing H^+ by an increase of additional sulfur. And it was guessed that superfluous failure is reversely generated with that there are much content on Ca^<2+-> and K^+.