Enrichment of natural 15N abundance during soil N losses under 20 years of continuous cereal cropping
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- 作者：Andrew R. Jonesa ; b ; c ; Andrew.Jones2@uqconnect.edu.au" class="auth_mail" title="E-mail the corresponding author ; Ram C. Dalala ; b
- 关键词：Soil nitrogen ; Cropping ; 15N ; Ammonium ; Nitrate ; Nitrification
- 刊名：Science of the Total Environment
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：574
- 期：Complete
- 页码：282-287
- 全文大小：699 K
文摘
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A gradient of 15N enrichment was identified along a 20-year crop chronosequence.
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A mechanism responsible for 15N enrichment during crop-soil N losses is proposed.
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15N abundance can be a useful tracer of cropping soil N loss in absence of fertilisers.