文章摘要
王亚男, 闫双堆, 刘越, 曹梦瑶, 张乃于, 卜玉山.硫酸铵与DMPP配施对石灰性褐土氮素转化及N2O、CO2排放的影响[J].水土保持学报,2021,35(3):284~289,295
硫酸铵与DMPP配施对石灰性褐土氮素转化及N2O、CO2排放的影响
Effects of Ammonium Sulfate Combined with DMPP on Nitrogen Conversion and N2O, CO2 Emission in Calcareous Cinnamon Soil
投稿时间:2020-12-04  
DOI:10.13870/j.cnki.stbcxb.2021.03.039
中文关键词: 硫酸铵  石灰性褐土  3,4—二甲基吡唑磷酸盐  氮素转化  N2O  CO2
英文关键词: ammonium sulfate  calcareous cinnamon soil  3,4—dimethylpyrazole phosphate  nitrogen transformation  N2O  CO2
基金项目:山西省重点研发计划项目(201803D221003-2)
作者单位E-mail
王亚男1, 闫双堆1,2, 刘越1, 曹梦瑶1, 张乃于1, 卜玉山1,2 1. 山西农业大学资源环境学院, 山西 太谷 030801

2. 山西农业大学农业资源与环境国家级实验教学示范中心
, 山西 太谷 030801 
ysdllj@126.com 
摘要点击次数: 27
全文下载次数: 42
中文摘要:
      为合理利用工业副产硫酸铵,探究3,4—二甲基吡唑磷酸盐(DMPP)配施硫酸铵对石灰性褐土中氮素转化及N2O和CO2排放的影响。通过室内培养试验,研究不同剂量DMPP与硫酸铵配施后,石灰性褐土中铵态氮(NH4+-N)含量、硝态氮(NO3--N)含量、土壤pH、N2O和CO2排放通量和累计排放量的动态变化,并进行了相关性分析。结果表明:单施硫酸铵的ASN处理在培养的前15天硝化作用强烈,第15天时,土壤NH4+-N含量降低了477.28 mg/kg,NO3--N含量增高了177.03 mg/kg。添加DMPP可以明显抑制硫酸铵NH4+-N向NO3--N转化。培养30天后,0.75%~1.75%剂量的DMPP处理的土壤NO3--N含量低于ASN处理174.02~177.00 mg/kg,硝化抑制率为94.92%~95.30%,且在0.75%~1.75%浓度范围内未表现出明显的剂量差异效应。各剂量DMPP在试验期间的硝化抑制效果表现较好,其作用时长为30天以上。培养30天时,与空白CKⅡ处理相比,单施硫酸铵T1处理的N2O和CO2的累计排放量分别显著增加了975.3%,126.66%(P<0.05),而添加了DMPP的T2处理相较于单施硫酸铵T1处理,N2O和CO2累计排放量分别显著降低了76.8%,6.22%(P<0.05)。相关性分析表明,CO2排放通量与N2O排放通量呈正相关关系,土壤pH与N2O、CO2排放通量呈负相关关系。硫酸铵与0.75% DMPP配合施用在一定程度上可以抑制土壤酸化,同时短期内可以显著降低N2O和CO2累计排放量(P<0.05)。
英文摘要:
      In order to make rational use of ammonium sulfate, we investigated the effects of 3, 4-dimethylpyrazole phosphate (DMPP) combined with ammonium sulfate on nitrogen conversion and N2O and CO2 emission in calcareous cinnamon soil. In this study, we analyzed the effects of ammonium sulfate and nitrification inhibitors (DMPP) on ammonium nitrogen (NH4+-N) content, nitrate nitrogen (NO3--N) content, N2O and CO2 emission flux and cumulutive emission in calcareous cinnamon soil by laboratory culture experiments. The correlation analysis of correlative indexes was also carried out. The results showed that ammonium sulfate was highly nitrated in the first 15 days of culture. At the 15th day, the content of NH4+-N in soil decreased by 477.28 mg/kg, and the content of NO3--N increased by 177.03 mg/kg. Addition of DMPP could significantly inhibit the transformation of NH4+-N of ammonium sulfate to NO3-N. After 30 days of culture, soil NO3--N content of 0.75%~1.75% DMPP treatment decreased by 174.02~177.00 mg/kg compared with that of ASN treatment. The nitrification inhibition rate was 94.92%~95.30%, and there was no significant dose effect in the range of 0.75%~1.75% concentration. Each does of DMPP showed better nitrification inhibition effect during the test period, and the duration of action was more than 30 days. When cultured for 30 days, compared with the CKⅡ treatment, the cumulative emissions of N2O and CO2 treated with ammonium sulfate alone significantly increased by 975.3% and 126.66%, respectively (P<0.05), while the cumulative emissions of N2O and CO2 treated with DMPP significantly decreased by 76.8% and 6.22%, respectively, compared with that treated with ammonium sulfate alone (P<0.05). Correlation analysis showed that there was a positive correlation between CO2 emission flux and N2O emission flux,and a negative correlation between soil pH and N2O and CO2 emission flux. In calcareous cinnamon soil, ammonium sulfate combined with 0.75% DMPP could inhibit soil acidification to a certain extent, and at the same time could significantly reduce the cumulative emissions of N2O and CO2 (P<0.05).
查看全文   查看/发表评论  下载PDF阅读器
关闭