Abstract:Cadmium, one of the most toxic heavy metals, is harmful to human being, animals and plants. Forest is an important vegetation type on the earth, and forest ecosystem plays a critical role in the functions of the earth ecosystem. The present paper aims to provide a critical review on cadmium contamination in forest ecosystem and its impacts on ecosystem health.The source of cadmium in forest ecosystem is from geogenic sources as well as from human activities. There are different sources of cadmium contamin...