Invasion of the Brazilian campo rupestre by the exotic grass Melinis minutiflora is driven by the high soil N availability and changes in the N cycle
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- 作者：Pâ ; mella C.D. Ribeiroa ; Esther Menendezd ; Danielle L. da Silvaa ; b ; Douglas Bonieckb ; Martha Helena Ramí ; rez-Bahenac ; Maria Aparecida Resende-Stoianoffb ; Alvaro Peixc ; Encarna Velá ; zquezd ; Pedro F. Mateosd ; Maria Rita Scottia ; mritascottimuzzi@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Ammonium ; Ammonia monooxygenase (amoA) ; Biological nitrogen fixation ; Burkholderia nodosa ; Mimosa pogocephala ; Nitrate
- 刊名：Science of the Total Environment
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：577
- 期：Complete
- 页码：202-211
- 全文大小：1749 K
文摘
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Melinis minutiflora invasion threatens the biodiversity of a campo rupestre biome.
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The site was assessed using leaf C, N, and δ15N, and soil C, N, NO3− and NH4+.
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Soil had a high level of NH4+ and a high N-based fertility from N2 fixation.
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NO3− increased in invaded soils through the stimulation of nitrifying bacteria.
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N fertilisation in restoration procedures may increase the invasiveness degree.