Ecosystem functions as indicators for heathland responses to nitrogen fertilisation
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- 作者：Alexandra Bä ; hringa ; baehring@leuphana.de" class="auth_mail" title="E-mail the corresponding author ; Andreas Fichtnera ; ichtner@leuphana.de" class="auth_mail" title="E-mail the corresponding author ; Karin Ibea ; Gudrun Schü ; tzeb ; gudrun.schuetze@uba.de" class="auth_mail" title="E-mail the corresponding author ; Vicky M. Tempertona ; Goddert von Oheimbc ; goddert_v_oheimb@tu-dresden.de" class="auth_mail" title="E-mail the corresponding author ; Werner Hä ; rdtlea ; haerdtle@uni-lueneburg.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Calluna vulgaris ; Coastal heath ; C ; N ratio ; Flower formation ; Plant cover ; Shoot increment
- 刊名：Ecological Indicators
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：72
- 期：Complete
- 页码：185-193
- 全文大小：1074 K
文摘
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Shoot increment of Calluna is the most sensitive indicator for N fertilisation.
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Cryptogam tissue C:N ratios responded to N inputs ≥5 kg ha−1 yr−1 after 3 years.
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Shifts in species cover occurred after 3 years of N inputs ≥10 kg ha−1 yr−1.
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C:N ratios of the mineral soil were inappropriate indicators for N inputs.
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Dwarf shrub growth suggests ecosystem sensitivity even to low but chronic N inputs.