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

  Soil carbon stocks and their rates of accumulation and loss in a boreal forest landscape

Rapalee, G., Trumbore, S. E., Davidson, E. A., Harden, J. W., & Veldhuis, H. (1998). Soil carbon stocks and their rates of accumulation and loss in a boreal forest landscape. Global Biogeochemical Cycles, 12(4), 687-701. doi:10.1029/98GB02336.

Item is

基本情報

表示: 非表示:
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
:
BEX399.pdf (出版社版), 2MB
ファイルのパーマリンク:
https://hdl.handle.net/11858/00-001M-0000-0027-D368-5
ファイル名:
BEX399.pdf
説明:
-
OA-Status:
閲覧制限:
公開
MIMEタイプ / チェックサム:
application/pdf / [MD5]
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:
非表示:
説明:
OA
OA-Status:

作成者

表示:
非表示:
 作成者:
Rapalee, G., 著者
Trumbore, Susan E.1, 著者           
Davidson, E. A., 著者
Harden, J. W., 著者
Veldhuis, H., 著者
所属:
1External Organizations, ou_persistent22              

内容説明

表示:
非表示:
キーワード: atmospheric co2 balance peatlands bog
 要旨: Boreal forests and wetlands are thought to be significant carbon sinks, and they could become net C sources as the Earth warms. Most of the C of boreal forest ecosystems is stored in the moss layer and in the soil. The objective of this study was to estimate soil C stocks (including moss layers) and rates of accumulation and loss for a 733 km(2) area of the BOReal Ecosystem-Atmosphere Study site in northern Manitoba, using data from smaller-scale intensive field studies. A simple process-based model developed from measurements of soil C inventories and radiocarbon was used to relate soil C storage and dynamics to soil drainage and forest stand age. Soil C stocks covary with soil drainage class, with the largest C stocks occurring in poorly drained sites. Estimated rates of soil C accumulation or loss are sensitive to the estimated decomposition constants for the large pool of deep soil C, and improved understanding of deep soil C decomposition is needed. While the upper moss layers regrow and accumulate C after fires, the deep C dynamics vary across the landscape, from a small net sink to a significant source. Estimated net soil C accumulation, averaged for the entire 733 km(2) area, was 20 g C m(-2) yr(-1) (28 g C m(-2) yr(-1) accumulation in surface mosses offset by 8 g C m(-2) yr(-1) lost from deep C pools) in a year with no fire. Most of the C accumulated in poorly and very poorly drained soils (peatlands and wetlands). Burning of the moss layer in only 1% of uplands would offset the C stored in the remaining 99% of the area. Significant interannual variability in C storage is expected because of the irregular occurrence of fire in space and time. The effects of climate change and management on fire frequency and on decomposition of immense deep soil C stocks are key to understanding future C budgets in boreal forests.

資料詳細

表示:
非表示:
言語: eng - English
 日付: 1998
 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: BEX399
DOI: 10.1029/98GB02336
 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 Biogeochemical Cycles
  その他 : Glob. Biogeochem. Cycle
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Washington, DC : American Geophysical Union
ページ: - 巻号: 12 (4) 通巻号: - 開始・終了ページ: 687 - 701 識別子(ISBN, ISSN, DOIなど): ISSN: 0886-6236
CoNE: https://pure.mpg.de/cone/journals/resource/954925553383