日本語
 
Help Privacy Policy ポリシー/免責事項
  詳細検索ブラウズ

アイテム詳細

登録内容を編集ファイル形式で保存
一時保存へ追加
 詳細要約
  Soil respiration is stimulated by elevated CO2 and reduced by summer drought: Three years of measurements in a multifactor ecosystem manipulation experiment in a temperate heathland (CLIMAITE)

Selsted, M., van der Linden, L., Ibrom, A., Michelsen, A., Larsen, K., Kongstad, J., Mikkelsen, T., Pilegaard, K., Beier, C., & Ambus, P. (2012). Soil respiration is stimulated by elevated CO2 and reduced by summer drought: Three years of measurements in a multifactor ecosystem manipulation experiment in a temperate heathland (CLIMAITE). Global Change Biology, 18, 1216-1230. doi:10.1111/j.1365-2486.2011.02634.x.

Item is

 

表示: 全項目 非表示: 全項目

基本情報

表示: 非表示:
アイテムのパーマリンク: https://hdl.handle.net/11858/00-001M-0000-0014-7642-2 版のパーマリンク: https://hdl.handle.net/11858/00-001M-0000-0014-7997-C
資料種別: 学術論文

ファイル

表示: ファイル
非表示: ファイル
:
BPR042.pdf (出版社版), 417KB
 
ファイルのパーマリンク:
-
ファイル名:
BPR042.pdf
説明:
-
OA-Status:
閲覧制限:
制限付き (Max Planck Institute for Biogeochemistry, MJBK; )
MIMEタイプ / チェックサム:
application/pdf
技術的なメタデータ:
著作権日付:
-
著作権情報:
-
CCライセンス:
-

関連URL

表示:

作成者

表示:
非表示:
 作成者:
Selsted, M.1, 著者
van der Linden, L., 著者
Ibrom, A., 著者
Michelsen, A., 著者
Larsen, K., 著者
Kongstad, J., 著者
Mikkelsen, T., 著者
Pilegaard, K., 著者
Beier, C., 著者
Ambus, P, 著者
所属:
1External Organizations, ou_persistent22              

内容説明

表示:
非表示:
キーワード: -
 要旨: This study investigated the impact of predicted future climatic and atmospheric conditions on soil respiration (RS) in a Danish Calluna-Deschampsia-heathland. A fully factorial in situ experiment with treatments of elevated atmospheric CO2 (+130 ppm), raised soil temperature (+0.4 °C) and extended summer drought (5–8% precipitation exclusion) was established in 2005. The average RS, observed in the control over 3 years of measurements (1.7 μmol CO2 m−2 sec−1), increased 38% under elevated CO2, irrespective of combination with the drought or temperature treatments. In contrast, extended summer drought decreased RS by 14%, while elevated soil temperature did not affect RS overall. A significant interaction between elevated temperature and drought resulted in further reduction of RS when these treatments were combined. A detailed analysis of short-term RS dynamics associated with drought periods showed that RS was reduced by ~50% and was strongly correlated with soil moisture during these events. Recovery of RS to pre-drought levels occurred within 2 weeks of rewetting; however, unexpected drought effects were observed several months after summer drought treatment in 2 of the 3 years, possibly due to reduced plant growth or changes in soil water holding capacity. An empirical model that predicts RS from soil temperature, soil moisture and plant biomass was developed and accounted for 55% of the observed variability in RS. The model predicted annual sums of RS in 2006 and 2007, in the control, were 672 and 719 g C m−2 y−1, respectively. For the full treatment combination, i.e. the future climate scenario, the model predicted that soil respiratory C losses would increase by ~21% (140– 150 g C m−2 y−1). Therefore, in the future climate, stimulation of C storage in plant biomass and litter must be in excess of 21% for this ecosystem to not suffer a reduction in net ecosystem exchange.

資料詳細

表示:
非表示:
言語:
 日付: 2012
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子（DOI, ISBNなど）: その他: BPR042
DOI: 10.1111/j.1365-2486.2011.02634.x
 学位: -

関連イベント

表示:

訴訟

表示:

Project information

表示:

出版物 1

表示:
非表示:
出版物名: Global Change Biology
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Oxford, UK : Blackwell Science
ページ: - 巻号: 18 通巻号: - 開始・終了ページ: 1216 - 1230 識別子（ISBN, ISSN, DOIなど）: ISSN: 1354-1013
CoNE: https://pure.mpg.de/cone/journals/resource/954925618107