Feng Zong-Wei, Jin Ming-Hong, Zhang Fu-Zhu, Huang Yi-Zong
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 10085, China.
J Environ Sci (China). 2003 May;15(3):360-2.
Effects of elevated O3 on the yields of rice and winter wheat were studied by using open-top chambers (OTCs). Results showed that compared to the control treatment, 200 ppb, 100 ppb, 50 ppb treatments caused a 80.4%, 58.6% and 10.5% decrease in grain yields per winter wheat plant and a 49.1%, 26.1% and 8.2% decrease in grain yield per rice plant, respectively. According to the dose-response relation educed from OTCs experiment and the monitor data of O3 concentrations in spots, it was estimated that the yield losses of rice and winter wheat resulted by O3 pollution in the Yangtze River Delta region in 1999 were 0.599 million ton and 0.669 million ton, economic losses were 0.539 billion RMB Yuan and 0.936 billion RMB Yuan, respectively.
利用开顶式气室（OTC）研究了高浓度臭氧（O₃）对水稻和冬小麦产量的影响。结果表明，与对照处理相比，200 ppb、100 ppb、50 ppb处理分别使每株冬小麦的籽粒产量降低了80.4%、58.6%和10.5%，使每株水稻的籽粒产量降低了49.1%、26.1%和8.2%。根据OTC实验得出的剂量-反应关系以及O₃浓度的定点监测数据，估算出1999年长江三角洲地区O₃污染导致的水稻和冬小麦产量损失分别为59.9万吨和66.9万吨，经济损失分别为5.39亿元人民币和9.36亿元人民币。
