은행나무와 곰솔의 유식물의 산성비에 대한 생장에 미치는 영향을 알아보기 위하여 pH 5.6을 대구조로 하여 pH 4.0, 3.2와 2.4의 인공산성비를 3개월간 처리하여 생장량, 엽록소 함량과 탄수화물의 함량을 조사하였다. 은행나무와 곰솔의 유식물은 pH 2.4에서 생장이 가장 억제되었으며 반면에 pH 3.2에서는 생장이 촉진되었다. 전체적인 생장량은 뿌리에 비해 지상부의 생장에서 산성비의 영향을 더 받았다. 엽록소 함량은 산성비의 산도에 따라 중요한 차이가 없었으며 은행나무 잎의 탄수화물의 함량은 포도당과 설탕의 함량이 pH 4.0에서 가장 낮았고 전분의 함량은 pH 3.2에서 가장 낮았다.

In order to determine the effects of the simulated acid rain on plant growth response, length and weight growth, chlorophyll content, and carbohydrate content of Ginkgo biloba L. and Pinus thunbergii P. were examined with 3 months-old seedlings. The seedlings were treated with the rain of pH 5.6, 4.0, 3.2 and 2.4, three times per week. Ginkgo seedlings were significantly reduced in fresh and dry weight, leaf area, root length and T-R rate. Pinus seedlings showed significant reduction in the extention growth, fresh weight, needle elongation. The growth of shoot was more susceptible to acid rain than that of roots. As physiological indicator to acid rain, there was no significant effect on the chlorophyll content of Ginkgo, and carbohydrate production of leaf were reduced at pH 3.2 treatments. However, chlorophyll content of needle from Pinus thunbergii were significantly reduced after exposure to simulated acid rain.