Soil carbon and nitrogen fractions in the soil profile and their response to long-term nitrogen fertilization in a wheat field
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- 作者：Yangquanwei Zhong ; Weiming Yan ; Zhouping Shangguan ; shangguan@ms.iswc.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：LFOC ; light fraction of carbon ; HFOC ; heavy fraction of carbon ; LFON ; light fraction of nitrogen ; HFON ; light fraction of nitrogen ; DOC ; dissolved organic carbon ; DON ; dissolved organic nitrogen ; EOC ; easily oxidizable organic carbon ; DOM ; dissolved organic matter ; NO3&minus ; nitrate nitrogen ; NH4+ ; ammonium nitrogen ; SI ; sensitivity index
- 刊名：Catena
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：135
- 期：Complete
- 页码：38-46
- 全文大小：1311 K
文摘
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Different C and N fractions in 0–200 cm soil were investigated.
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C and N fractions varied under different N fertilization rates.
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Nitrate was the most sensitive fraction to N fertilization.
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The LFOC and LFON are more sensitive in the surface soil layer.
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DOC and DON may be better indicators in the subsurface layers.