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

本文以人工降雨对香柏、锯栎和栎树树苗的可见损害情况和生长反应进行了试验研究。在人工酸化土壤中生长140 d，最后分析土壤中Al^<3->、Mn^<2+>、Ca^<2+>、Na^+、K^+的含量，明确各离子对每棵树苗生长的影响。结果表明，不同Al^<3->和Mn^<2+>的土壤中，这些幼树的生长响应没有变化，但随着添加硫对H^+的影响而下降。同时推测，由于Ca^<2+->和K^+上有大量的含量，从而产生了多余的失效。

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^+.