森林植物的一些特殊环境功能

本文从植物对大气、水体和土壤化角度分析了森林的特殊环境功能,有些植物能吸收空气中各种有害气体,如SO₂、Cl₂、HF以及放射性物质,可用于治理大气污染,或用于环境污染监测;许多森林植物对各种污染物有一定的吸收、积累和分解作用,因而,可以用于污染环境的修复治理;植物通过蒸腾作用向大气中释放大量的水分,带走了热量,降低了大气的温度;森林还能保持水土、防风固沙、涵养水源.因而,森林具有美化环境,清理环境污染物,稳定气候等重大的环境功能.

Some special functions of forest in environment

Forest plays an important role in terrestrial ecosystem. This paper discussed the ecological function of forest plants from the standpoint of cleaning contaminated atmosphere, water and soil. Some plants are able to absorb the toxic gases such as SO2, C12, HF and even radioactive materials. These plants can be used to clean the atmosphere pollution or monitor the pollution. Some plants can absorb contaminants from the soil. Those plants can be active in so called phytoremediation of contaminated soil. Forest plants reduce the air temperature through evapotranspiration. They can also conserve soil and water, resist wind damage and fix the sand. Therefore, the forest plants have enormous environment benefit.