1989 Fiscal Year Final Research Report Summary
PILOT PRODUCTION OF TRANSPIRATION MEASURING SYSTEM AND ITS PRACTICAL APPLICATION
| Project/Area Number |
62860017
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| Research Category |
Grant-in-Aid for Developmental Scientific Research
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| Allocation Type | Single-year Grants |
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| Research Field |
林学
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| Research Institution | SHIZUOKA UNIVERSITY |
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Principal Investigator |
KAKUBARI Yoshitaka SHIZUOKA UNIV., FAC.OF AGRICULTURE, ASSOCIATE PROFESSOR, 農学部, 助教授 (60126026)
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| Co-Investigator(Kenkyū-buntansha) |
MORIYA Takashi KOITO CO., LTD., ASS. DIRECTOR, 機電事業部・環境調節事業部, 第三係長
HANDA Shigeru KOITO CO., LTD., DIRECTOR, 機電事業部・環境調節事業部, 課長補佐
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| Project Period (FY) |
1987 – 1989
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| Keywords | Transpiration / Photosynthesis / Fagus crenata / Querucus actissima / simulation model / measuring system |
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| Research Abstract |
A special characteristic of transpiration measuring system developed in this project is described in following points. 1. It's easy to use this measuring system in the field condition because of small designed and light-weight system controller, air controller, gas analyzer and chamber. 2. It's possible to measure photosynthesis and transpiration rates under natural condition. It's better measuring system than that of dry-inlet supplying to chamber. 3. We can develop new single cell-type gas analyzer and are successful to make light weight, saving energy and high responsibility. 4. It's easy to operate measuring system by using micro-computer. 5. We get the highest, state of efficiency by use of high storage memory, various interfaces to another devices and data processing.
We evaluated the new measuring system at the field conditions in the beech and oak forests and obtained insufficient results. Because we had not sufficient techniques developing gas analyzer, humidity sensor and function of computer under restriction of light weighting, high responsibility and saving energy.
We have already developed an eco-physiological computer simulation model to estimate total transpiration based on an individual tree level and use this model to analyze the differences of transpiration before and after thinning. As we could not develop new system as a first step, it was impossible to get the combination between hardware and software. If we get the next chance, we try to make this system better.
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[Publications] Kakubari, Y:Modelling the productive structure and function of natural forests of Fagus crenata at different altitudes in Naeba Mountains-An analysis of dry matter production with an eco-physiological computer simulation model based on an individual tree. Bull.Tokyo Univ.For. 76:107-162, 1987: Kakubari, Y.:Analysis of dry matter production with an eco-physiological computer simulation model. 4th IUFRO workshop P1.07 177-188, 1987: Kakubari, Y.:Diurnal and seasonal fluctuations in the bark respiration of standing Fagus sylvatica trees at Solling, West Germany. J.Jap.For.Soc.70:64-70, 1988: Kakubari, Y., T.Moriya and S.Handa:Function and application of a handy-type porometer (I) Trans.99th Mtg., Jap.For.Soc. 777-778, 1988:
Description
「研究成果報告書概要(欧文)」より
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[Publications] Runge, M., Kakubari, Y., Stickan, W., Schulte, M., Wahle, E., Niederstadt, F.and Schenk, J.: "Der CO_2 - und H_2O-Gaswechsel von Buchen im Solling als Indikator fur latente Schadstoffwirkungen." BMFT. 81 (1989)
Description
「研究成果報告書概要(欧文)」より
