| 土壤可溶性有机态氮的释放动力学研究 |
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| 引用本文： | Hou.,VJG 邵孝侯.土壤可溶性有机态氮的释放动力学研究[J].南京农业大学学报,1990,13(3):65-69. |
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| 作者姓名： | Hou. VJG 邵孝侯 |
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| 作者单位： | 河海大学农水系，荷兰瓦赫宁根大学土化系，南京农业大学土化系，南京农业大学土化系 南农大85级硕士生 |
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| 摘 要： | 本文研究了化学诱导下荷兰8个土样可溶性有机态氮的释放动力学。结果表明,土壤可溶性有机态氮的释放符合一级动力学方程 N_t=N_o(1-e~(-kt)),N_o 和土壤有机碳、全氮无明显相关性,但与0.01mol/L CaCl_2提取的可溶性有机氮相关密切。N_o 可能反映了土壤的本质属性,有助于评价土壤有效性氮素水平。
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| 关 键 词： | 土壤 氮 释放 动力学 |
RELEASE KINETICS OF SOLUBLE ORGANIC N FROM SOILS |
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| Shao Xiaohou.RELEASE KINETICS OF SOLUBLE ORGANIC N FROM SOILS[J].Journal of Nanjing Agricultural University,1990,13(3):65-69. |
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| Authors: | Shao Xiaohou |
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| Abstract: | A kinetic technique to gain information about the chemically induced release of solubleorganic N from Dutch soils was adopted.The results obtained show that the release of solubleorganic N obeys the first order kinetics N_t=N_o(1-c~(-kt)).The soluble organic N release poten-tial N_o is highly correlated with N extracted by 0.01 mol/L CaCl_2 solution,but not corre-lated with soil total N or organic C,implicating that N_o or CaCl_2-extractable N may be usedto assess the soil N status. |
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| Keywords: | soil soluble organie N N availability kinetics |
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