标题:
离子色谱法测定新乡市大棚菜田土壤中的阴离子Measurement of the Anion in Vegetable Field Soil of Greenhouse in Xinxiang by Using Ion Chromatography
作者:
陈碧华, 郭卫丽, 李新峥, 王广印
关键字:
离子色谱法, 种植年限, 菜田土壤, 阴离子Ion Chromatography, Cultivating Years, Vegetable Field Soil, Anion
期刊名称:
《Hans Journal of Agricultural Sciences》, Vol.5 No.1, 2015-02-16
摘要:
为了研究大棚菜田土壤阴离子的演变特征，采集了不同种植年限(0、5、10、15、20、25、30 a)的大棚菜田0~20 cm土壤样品，用离子色谱法测定了土壤阴离子的含量。结果表明：Cl−、HJCO3、NO3、NO2、 SO2-4与种植年限极显著相关，其中Cl−在15~30 a期间每年增速为25.72 mg•kg−1左右，是0~15 a增速的9.2倍，到30 a时增加8倍；HJCO3含量以每年1.7 mg•kg−1的速度降低；NO3在种植30 a的蔬菜大棚土壤NO3含量高达到1038 mg•kg−1左右，较没有大棚覆盖的大田增加25.7倍；土壤中NO2含量的增速为0.85 mg•kg−1•a−1；SO2-4以每年33 mg•kg−1的速率持续增加。
In order to study evolution characteristics of the anion in vegetable field soil of greenhouse, the soil samples of different cultivating years (0 a, 5 a, 10 a, 15 a, 20 a, 25 a, 30 a) were collected, and their anion contents were determined by using ion chromatograph. The results showed that the contents of Cl−,HJCO3, NO3 , NO2 and SO2-4 were most significantly correlated with the cultivating years. Annual growth of Cl− content was about 25.72 mg•kg−1 during 15 - 30 a, which was 9.2 times that during 0 - 15 a, and it increased 8 times in 30 a; the content of HJCO3 was decreased at annual rate of 1.7 mg•kg−1; the content of NO3 reached about 1038 mg•kg−1 in the soil of 30 a, 25.7 times compared to that in open field soil; annual growth of NO2 content was 0.85 mg•kg−1; and annual growth of SO2-4 content was 33 mg•kg−1.