文章摘要
郭媛, 李宜联, 郭策, 贺秀娟, 赵兴敏, 王鸿斌, 隋标.不同氮素添加对不同土地利用方式黑土氮素转化特征的影响[J].水土保持学报,2021,35(1):236~243
不同氮素添加对不同土地利用方式黑土氮素转化特征的影响
Effects of Different Nitrogen Additions on Nitrogen Conversion Characteristics of Black Soil with Different Land Use Patterns
投稿时间:2020-06-17  
DOI:10.13870/j.cnki.stbcxb.2021.01.034
中文关键词: 黑土  土地利用方式  尿素  磷酸二铵  铵态氮  硝态氮  矿化速率  硝化速率
英文关键词: black soil  land use  urea  diammonium phosphate  ammonium nitrogen  nitrate nitrogen  net nitrogen mineralization rate  net nitrification rate
基金项目:国家重点研发计划项目(2018YFD0300201);吉林省重大科技专项(20200503004SF)
作者单位E-mail
郭媛1, 李宜联1, 郭策1, 贺秀娟2, 赵兴敏1, 王鸿斌1, 隋标1 1. 吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室, 长春 130118

2. 乌鲁木齐京诚检测技术有限公司
, 乌鲁木齐 830022 
zhaoxingmin0704@163.com 
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中文摘要:
      以吉林省典型黑土区的玉米、果树、森林、水稻和菜地土壤为研究对象,采用室内培养法研究氮素在不同土地利用方式黑土中的形态转化特征。结果表明:施加氮肥使不同土地利用方式黑土的铵态氮和硝态氮含量均有不同程度的提高,其中铵态氮含量差异不显著,硝态氮含量差异显著。对于施加尿素的处理而言,S2(129.82 mg/kg)和C2(138.01 mg/kg)硝态氮含量显著高于G2(111.89 mg/kg)和D2(105.35 mg/kg),且Y2(126.92 mg/kg)显著高于D2。对于施加磷酸二铵的处理而言,各土壤硝态氮含量由大到小的顺序为C3(160.23 mg/kg) > Y3(150.00 mg/kg) > S3(140.12 mg/kg) > G3(133.45 mg/kg) > D3(126.70 mg/kg),且C3和Y3显著高于G3和D3。土壤净矿化速率和净硝化速率分别与土壤C/N,土壤微生物量碳、土壤微生物量氮呈显著负相关。整个培养期间,Y、G、C和D土壤平均NMR由大到小的顺序均为处理2 > 处理3 > CK处理,S土壤平均NMR由大到小的顺序为处理3 > 处理2 > CK处理。Y、G和D土壤平均NR由大到小的顺序均为处理2 > 处理3 > CK处理,S和C土壤平均NR由大到小的顺序为处理3 > 处理2 > CK处理。土壤理化性质对黑土氮素转化特征有重要影响。
英文摘要:
      The typical black soil areas of Jilin Province were studied under corn, paddy, orchard, forests and vegetable fields. We used the indoor cultivation method to study the morphological transformation characteristics of nitrogen in black soil with different land use patterns. The application of nitrogen fertilizer increased the contents of ammonium nitrogen and nitrate nitrogen in black soil with different land use patterns. The difference of ammonium nitrogen contents was not significant, but the difference of nitrate nitrogen contents was significant. For the urea treatment, the contents of nitrate nitrogen S2 (129.82 mg/kg) and C2 (138.01 mg/kg) were significantly higher than those of G2 (111.89 mg/kg) and D2 (105.35 mg/kg). The nitrate nitrogen content of Y2 (126.92 mg/kg) was significantly higher than that of D2. The analysis of the treatment of diammonium phosphate showed: The order of the nitrate nitrogen content of each soil was C3 (160.23 mg/kg) > Y3(150.00 mg/kg) > S3(140.12 mg/kg) > G3(133.45 mg/kg) > D3(126.70 mg/kg). The nitrate nitrogen content of C3 and Y3 was significantly higher than those of G3 and D3. Moreover, soil net mineralization rate and net nitrification rate were significantly negatively correlated with soil C/N, soil microbial biomass carbon, and soil microbial biomass nitrogen. During the whole cultivation period, the order of the average NMR of Y, G, C and D soils were as follows treatment 1 > treatment 2 > treatment CK. The average NMR of S soils were in the order of treatment 2 > treatment 1 > treatment CK. The average NR of Y, G and D soils were in the order of treatment 1 > treatment 2 > CK treatment, and the average NR of S and C soils were in the order of treatment 2 > treatment 1 > treatment CK. These results showed that the physical and chemical properties of the soil had an important influence on the characteristics of nitrogen conversion in black soil.
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