土壤环境是人类生态环境重要组成部分。
Soil environment is a major constituent of human ecological environment.
人类生态环境是一个包括自然环境、社会环境和规范环境在内的复合生态系统。
Human ecological environment is a compound system consisting of natural, social and normative environments.
本文介绍了世界范围的环境污染问题，详细论述了酸雨的形成及对人类生态环境的直接影响和间接影响。
Environmental pollution that affects the life of this globe is described. Acid rain affecting ecological systems of human environment directly or indirectly, is discussed in detail.
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