State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Environ Pollut. 2010 Oct;158(10):3236-42. doi: 10.1016/j.envpol.2010.07.009. Epub 2010 Aug 14.
A meta-analysis was conducted to quantitatively assess the effects of ethylenediurea (EDU) on ozone (O3) injury, growth, physiology and productivity of plants grown in ambient air conditions. Results indicated that EDU significantly reduced O3-caused visible injury by 76%, and increased photosynthetic rate by 8%, above-ground biomass by 7% and crop yield by 15% in comparison with non-EDU treated plants, suggesting that ozone reduces growth and yield under current ambient conditions. EDU significantly ameliorated the biomass and yield of crops and grasses, but had no significant effect on tree growth with an exception of stem diameter. EDU applied as a soil drench at a concentration of 200-400 mg/L has the highest positive effect on crops grown in the field. Long-term research on full-grown tree species is needed. In conclusion, EDU is a powerful tool for assessing effects of ambient [O3] on vegetation.
进行了一项荟萃分析，以定量评估乙二脲（EDU）对在环境空气条件下生长的植物的臭氧（O3）伤害、生长、生理和生产力的影响。结果表明，与未用 EDU 处理的植物相比，EDU 可显著降低 76%的臭氧引起的可见伤害，提高 8%的光合速率，增加 7%的地上生物量和 15%的作物产量，表明臭氧在当前环境条件下会降低植物的生长和产量。EDU 显著改善了作物和草的生物量和产量，但对树木生长没有显著影响，除了茎直径。将 EDU 以 200-400mg/L 的浓度作为土壤淋洗剂施用对田间生长的作物具有最高的积极影响。需要对成年树种进行长期研究。总之，EDU 是评估环境 [O3] 对植被影响的有力工具。
Zotero 插件