Schätzle H, Seufert G, Bender J, Grobeta G, Arndt U, Jäger H J
Institut für Landeskultur und Pflanzenökologie 320, Postfach 70 05 62, Universität Hohenheim, 7000 Stuttgart 70, Germany.
Environ Pollut. 1990;68(3-4):253-73. doi: 10.1016/0269-7491(90)90030-g.
Seedlings of fir (Abies alba Mill.) and spruce (Picea abies L. Karst.) were fumigated with SO(2), O(3) and SO(2) + O(3) in open-top chambers (OTCs) for almost 5 vegetation periods. As background stress, simulated rain of pH 4.0 was applied. Nutrient content of soil, soil solutions, and trees was investigated and balanced. In the upper partition of the soil high concentrations of exchangeable Ca(2+) were found in all chambers. The SO(2) and SO(2) + O(3) treatments led to increased Ca(2+), Mg(2+) and Mn(2+) concentrations in soil solution and the pool of exchangeable protons increased. This response was most evident in the SO(2) and SO(2) + O(3) chambers and less clear in the filtered pH 5.0 control chamber. In the SO(2) treatment increased Mn and S levels were found in the needles. Ca content in the needles showed a decreasing trend. O(3) alone had no consistent effect on needle nutrient content.
在开顶式气室（OTC）中，用二氧化硫（SO₂）、臭氧（O₃）以及二氧化硫 + 臭氧对冷杉（欧洲冷杉，Abies alba Mill.）和云杉（欧洲云杉，Picea abies L. Karst.）的幼苗进行了近5个生长季的熏蒸处理。作为背景胁迫，施加了pH值为4.0的模拟降雨。对土壤、土壤溶液和树木的养分含量进行了调查并保持平衡。在所有气室土壤的上层分区中都发现了高浓度的可交换钙（Ca²⁺）。二氧化硫和二氧化硫 + 臭氧处理导致土壤溶液中钙（Ca²⁺）、镁（Mg²⁺）和锰（Mn²⁺）浓度增加，可交换质子库也增加。这种响应在二氧化硫和二氧化硫 + 臭氧气室中最为明显，在经过过滤的pH值为5.0的对照气室中则不太明显。在二氧化硫处理中，针叶中的锰和硫含量增加。针叶中的钙含量呈下降趋势。单独的臭氧对针叶养分含量没有一致的影响。
