| Natural Nitrogen-15 Abundance of Ammonium Nitrogen and Fixed Ammonium in Soils |
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| 引用本文： | SHI SHU-LIAN,XING GUANG-XI,ZHOU KE-YU,CAO YA-CHENG,YANG WEN-XING. Natural Nitrogen-15 Abundance of Ammonium Nitrogen and Fixed Ammonium in Soils[J]. 土壤圈, 1992, 2(3): 265-272 |
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| 作者姓名： | SHI SHU-LIAN XING GUANG-XI ZHOU KE-YU CAO YA-CHENG YANG WEN-XING |
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| 作者单位： | [1]InstituteofSoilScience,AcademiaSinica,P.O.Box821,Nanjing210008（China） [2]LaboratoryofMaterialCyclinginPe,AcademiaSinica,P.O.Box821,Nanjing210008（China） |
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| 基金项目： | Project supported by the National Natural Science Foundation of China. |
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| 摘 要： | The present article deals with the natural nitrogen-15 abundance of ammonium nitrogen and fixed ammonium in different soils.Variations in the natural ^15N abundance of ammonium nitrogen mineralized in soils under anaerobic incubation condition were related to soil pH.The δ ^15N of mineralizable N in acid soils was lower but that in neutral and calcareous soils was higher compared with the δ ^15N of total N in the soils.A variation tendence was also found in the δ ^15N of amino-acid N in the hydrolysates of soils.The natural ^15N abundance of fixed ammonium was higher than that of total N in most surface soils and other soil horizons,indicating that the increase of δ ^15N in the soil borizons beneath subsurface horizon of some forest soils and acid paddy soils was related to the higher δ ^15N value of fixed ammonium in the soil.
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| 关 键 词： | 土壤成分 铵基氮 稳定态氮 天然同位素 氮15 氮素平衡 |
Natural Nitrogen-15 Abundance of Ammonium Nitrogen and Fixed Ammonium in Soils |
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| SHI SHU-LIAN,XING GUANG-XI,ZHOU KE-YU,CAO YA-CHENG and YANG WEN-XING. Natural Nitrogen-15 Abundance of Ammonium Nitrogen and Fixed Ammonium in Soils[J]. Pedosphere, 1992, 2(3): 265-272 |
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| Authors: | SHI SHU-LIAN XING GUANG-XI ZHOU KE-YU CAO YA-CHENG YANG WEN-XING |
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| Affiliation: | Laboratory of Material Cycling in Pedosphere, A cademia Sinica, Nanjing 210008;Laboratory of Material Cycling in Pedosphere, A cademia Sinica, Nanjing 210008;Laboratory of Material Cycling in Pedosphere, A cademia Sinica, Nanjing 210008;Laboratory of Material Cycling in Pedosphere, A cademia Sinica, Nanjing 210008;Laboratory of Material Cycling in Pedosphere, A cademia Sinica, Nanjing 210008 |
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