净化厂外排SO2对水稻扬花结实的影响研究

Study on the Effect of SO_2 Emitted from Purification Plant upon Rice in the period of Heading and Flowering

摘要: 通过对处于抽穗扬花期的水稻进行人工熏气试验，考察天然气净化厂事故排放时外排的二氧化硫落地后对水稻生长的影响。结果表明：对水稻熏浓度小于２．５，ｇ／ｍ＾３的二氧化硫气体３０ｍｉｎ，水稻生长正常，对水稻扬花结实，产量及籽实品质没有明显的不利影响。

Abstract: The effect on the rice growth in heading and flowering period by SO2 emitted from natural gas purification plant and fell to the ground has been tested through fumigation experiment.The results show that:fhmigating for 30 minutes with SO2 concentration be