Seufert G, Hoyer V, Wöllmer H, Arndt U
Institut für Landeskultur und Pflanzenökologie, POB 700562, D-7000 Stuttgart 70-Hohenheim, Germany.
Environ Pollut. 1990;68(3-4):205-29. doi: 10.1016/0269-7491(90)90028-b.
In the winter of 1982-83 an experiment was initiated at the University of Hohenheim to investigate the long-term effects of near ambient concentrations of O(3), SO(2), and simulated acidic rain and fog, alone and in combination, on mineral cycling, physiology, biochemistry and anatomy of Norway spruce (Picea abies L. Karst.), Silver fir (Abies alba Mill.) and European beech (Fagus silvatica L.) seedlings in model ecosystems. Open-top chambers above soil lysimeters were protected with shelters 1 m above the open-top against intrusion of ambient dust and rain. The soil, a replaced acid brown earth with a base saturation of 20-30% was from the Black Forest region of the Federal Republic of Germany. This paper describes the technical design aspects of the study, including chamber construction and ventilation, SO(2) and O(3) application and monitoring, simulated precipitation forms and dispensing features, and the environmental parameters monitored. A short description of the plants used and the soil status is also presented. Chamber climatic and edaphic conditions allowed tree seedling normal growth over the five years of study. The pollutant levels within the appropriate chambers were comparable to ambient concentrations found at southwest German forest sites and varied with weather conditions.
1982 - 1983年冬季，霍恩海姆大学开展了一项实验，以研究接近环境浓度的臭氧（O₃）、二氧化硫（SO₂）以及模拟酸雨和酸雾单独及组合存在时，对模型生态系统中挪威云杉（Picea abies L. Karst.）、银枞（Abies alba Mill.）和欧洲山毛榉（Fagus silvatica L.）幼苗的矿物循环、生理学、生物化学和解剖学的长期影响。土壤渗漏计上方的开顶式气室上方1米处设有遮蔽物，以防环境灰尘和雨水侵入。土壤是取自德意志联邦共和国黑森林地区的一种替代酸性棕壤，碱饱和度为20 - 30%。本文描述了该研究的技术设计方面，包括气室构造与通风、SO₂和O₃的施加与监测、模拟降水形式与分配特征以及所监测的环境参数。还简要介绍了所用植物和土壤状况。在为期五年的研究中，气室的气候和土壤条件使树苗能够正常生长。各气室内的污染物水平与德国西南部森林地区的环境浓度相当，并随天气状况而变化。
