| 2. | So far , most related researches and achievements have showed that acid rain has certain impact on functions of a soil ecosystem . such as leaching of soil base - exchangeable ions , heavy metals and microelements , nitrogen , contents of sulfur and phosphorus nutrients , soil acidification , population and activities of soil microbes , soil buffer capacity , soil sensitivity to acid rain , soil structure and weathering status of soil minerals , and so on 现有的大量研究表明,酸雨对土壤生态系统的功能特性,包括土壤的盐基离子以及重金属与微量元素的淋溶、土壤营养、土壤酸化、土壤微生物数量及其活性、土壤缓冲性能、土壤对酸雨的敏感性、土壤结构、土壤矿物风化等方面均会产生一定的影响。 |