The abundance and availability of water and nutrients in a soil ecosystem determine its fertility. 土壤生态系统中水分和养分的丰度和有效性决定土壤的肥力。
The interrelations between acid rain and soil ecosystem are analysed.Acid rain could change soil acidity, enhance soil toxicity, reduce soil active,destroy soil structure. 酸雨能改变土壤生态系统中土壤酸碱性，增加土壤毒害，降低土壤活性，破坏土壤结构，同时土壤生态系统影响酸雨的形成和污染。
