臭氧对生态系统地下过程的影响

Effects of elevated ambient ozone on ecosystem below-ground processes

对流层中高浓度的臭氧是一种严重危害植物的大气污染物,臭氧浓度的升高会对作物、林木等产生一系列的损害。本文综述了大气臭氧浓度升高对生态系统地下过程的影响,包括植物根系、根系分泌物、菌根、土壤-根呼吸、土壤酶以及土壤微生物的影响研究进展;阐述了目前研究中存在的争论以及今后需要研究的领域和方向。

Ozone is the most important phytotoxic gaseous pollutant in many parts of the world. High level ozone will cause the reduction of crop- and forest outputs. This paper reviewed the research advances in the effects of elevated ozone on the below-ground processes of ecosystems, including root ty, and soil researches, growth, root exudation, mycorhizal growth, soil-root respiration, soil enzyme activimicrobiological processes. The significance of this research, the debates in current and the fields and directions needed to be further studied were discussed.