研究论文
刘燕云,曹洪法,舒俭民,高映新.酸雨和SO2对蔬菜生长和产量的影响[J].环境科学学报,1991,11(3):327-335
酸雨和SO2对蔬菜生长和产量的影响
- EFFECTS OF SIMULATED ACID RAIN AND SO2 ON GROWTH AND YIELD OF VEGETABLES
- 基金项目：
- 作者
- 单位
- 刘燕云
- 中国环境科学研究院生态研究所,北京
- 曹洪法
- 中国环境科学研究院生态研究所,北京
- 舒俭民
- 中国环境科学研究院生态研究所,北京
- 高映新
- 中国环境科学研究院生态研究所,北京
- 摘要：应用开顶式熏气装置,以油菜和白菜为材料,分别将其暴露于模拟酸雨(pH2.8-5.6)和模拟酸雨与0.1ppmSO2环境中,测定单独污染与复合污染对蔬菜生长反应和产量的影响。结果表明,酸雨(pH2.8)和酸雨(pH4.6)与0.1ppmSO2复合处理均对LAR有明显抑制,LAR最多可减少37.5%。模拟酸雨(pH2.8,3.6)使蔬菜减产1.4-8.7%,而模拟酸雨与SO2复合污染可使蔬菜产量减少7.9-28.9%(P<0.05)。
- Abstract：The response of growth and yield of two species of vegetable, Brassica campestris var oleifera and Brassica chinesis, were studied after exposed to simulated acid rain (pH2.8-5.6) and acid rain plus SO2 (0.1 ppm) for 6 weeks in open-top chamber. The leaf area ratio(LAR) was reduced together with the increase in leaf area coefficient (SLA) and decrease in leaf weight ratio (LWR) by acid rain at pH4.6 and combined treatment of acid rain (pH4.6)plus SO2. The major effect of LAR reduction was caused by reducing assimilation rate(NAR).1.4-8.7%and 7.9-28.9% reductions in yield were observed for acid rain of pH4.6 and combined effect of acid rain and SO2.
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