Estimation of the Rates of Primary Production, Respiration and Gas Exchange with Continuously Measured DO and pH Data.
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- FUKUSHIMA Takehiko
- National Institute for Environmental Studies
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- MATSUSHIGE Kazuo
- National Institute for Environmental Studies
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- WEISBURD R.S.J.
- Tokyo University of Fisheries
Bibliographic Information
- Other Title
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- Do,pHの連続測定による気液ガス交換,光合成,呼吸速度の推定方法について
- DO pH ノ レンゾク ソクテイ ニ ヨル キエキ ガス コウカン コウゴウ
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Abstract
Free water and incubation methods were applied in order to estimate the net rates of primary production, respiration and gas exchange across the air-water interface using continuously measured dissolved oxygen (DO) and pH data for both outdoor ponds and transparent closed and open boxes (20 cm × 20 cm × 20 cm) suspended in the ponds. The rates of primary production and respiration determined with the closed box agreed well with values obtained in parallel incubations by the standard light bottle method. Gas exchange coefficients were calculated by comparison of the differences in the net rates of change of DO and dissolved inorganic carbon between the closed box and the open box. These gas exchange coefficients varied with wind velocities and those for CO2 were about one order of magnitude larger than those for O2 due to chemical enhancement of CO2 gas exchange. Diurnal changes in the stoichiometry of productivity and the effects of temperature on respiration in the open water of the experimental ponds were estimated and discussed.
Journal
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- Journal of Japan Society on Water Environment
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Journal of Japan Society on Water Environment 18 (4), 279-289, 1995
Japan Society on Water Environment
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Keywords
Details 詳細情報について
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- CRID
- 1390001205081340544
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- NII Article ID
- 30034606628
- 10009310512
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- NII Book ID
- AN10372439
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- COI
- 1:CAS:528:DyaK2MXmvFWnsb4%3D
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- ISSN
- 18813690
- 09168958
- http://id.crossref.org/issn/09168958
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- NDL BIB ID
- 3608776
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed