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Position: Home > Articles > Study on influence of atmosphere infectant SO_2 on crops Chinese Journal of Eco-Agriculture 2003,11 (2)

大气污染物SO_2对农作物环境的影响研究

作  者:
傅嘉媛;郑泽群
单  位:
西安农业科学研究所;福州大学环境与资源工程系
关键词:
SO_2;农作物;伤害阈值
摘  要:
按照某燃煤电厂扩建工程预测的大气SO_2浓度,模拟试验研究低浓度SO_2对小麦的慢性伤害和高浓度SO_2对玉米的急性伤害阈值结果表明,小麦“津85-3”和“绵阳15”减产5%的慢性伤害阈值剂量分别为8.329mg·h、20.519 mg·h,阈值浓度为0.043mg/m~3、0.122mg/m~3。高浓度SO_2对玉米三叶期幼株的急性伤害临界剂量为2.50mg/m~3×4h、4~92mg/m~3×2h和7.38mg/m~3×1h,当玉米叶片枯斑率达5%时其急性伤害阈值为5.90mg/m~3×8h、6.49mg/m~3×6h、11.80mg/m~3×4h、15.00mg/m~3×2h和17.00mg/m~3×1h。
译  名:
Study on influence of atmosphere infectant SO_2 on crops
作  者:
FU Jia-Yuan (Department of Environment and Resources Engineering,Fuzhou University,Fuzhou 350002),ZHENG Ze-Qun (Xian Institute of Agricultural Sciences,Xi'an 710054)
关键词:
SO2,Crops,Harm value
摘  要:
The influence of atmosphere infectant SO2 on crops was studied by simulate test.The results show that under low concentration SO2 the threshold dosage of chronic harm for "Jin85-3" and "Mianyang15" is 8.329 mg h and 20.519 mg-h,the threshold concentration is 0.043 mg/m3 and 0.122mg/m3 respectively when output of wheat decreases 5%,the fastness of wheat "Mianyang 15" is better.Under the high concentration SO2 the critical dosage of acute harm to under age corn is 2.50mg/m×4h,4.92mg/m3×2h and 7.38mg/m3×1h,when its harm is seen.The threshold dosage of acute harm to corn is 5.90mg/m3×8h,6.49mg/m3×6h,11.80mg/m3×4h,15.00mg/m3×2h,and 17.00 mg/m3×1h,when the withered spot of laminae reached 5%.

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