The effect and harm of acid deposition on soil and vegetation of forest ecosystem were studied according to guidelines and technical manuals for acid deposition monitoring network in East Asia.
笔者根据东亚酸雨监测网土壤和植被监测技术规范方法，研究了酸沉降对森林生态系统土壤和植被的影响和危害。
The acid deposits have not only directly affected on tree growth but also indirectly through the acidification of forest soil which is probably one of the facts that cause forest decline.
酸性沉降不仅对林木生长产生直接影响，而且通过土壤还对林木产生间接影响。
The present paper is a review of the new progress of study on forest decline due to soil acidification from acid rain.
本文主要综述酸雨通过土壤酸化导致森林衰亡方面的国外最新研究进展。
When acid rain falls on forest floors, it changes the ingredients - the 'PH level' - of the soil.
酸雨对森林地表层的土壤来说，它改变了原来的pH值'。
When acid rain falls on forest floors, it changes the ingredients - the 'PH level' - of the soil.
酸雨对森林地表层的土壤来说，它改变了原来的pH值'。
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