AsiaFlux Workshop 2009
Integrating Cross-scale Ecosystem Knowledge: Bridges and Barriers
October 27-29, Sapporo, Japan
http://www.japanflux.org/asiafluxws2009/
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Course A: One-day Trip to Flux monitoring and long-term ecological sites near Sapporo (October 29)
Sorry! Course A is now closed.
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| Canopy Crane of TOEF | Two towers in SAP site from the air |
Schedule
October 29 |
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| 9:00 | Depart from Hokkaido University |
| 9:45 | Arrive at FFPRI Sapporo forest meteorology research site |
| 11:30 | Depart from FFPRI site |
| 13:00 | Arrive at Tomakomai Experimental Forest (TOEF), Hokkaido University and lunch time |
| 14:00 | Tree warming experiment site |
| 16:30 | Departure from TOEF |
| 17:30 | Arrive at New Chitose Airport |
| 19:00 | Arrive at Hokkaido University |
Excursion Fee
ca. 4,000 yen (including transportation and lunch fees)
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About Sapporo forest meteorology research site (SAP)
Sapporo forest meteorology research site is located in a hilly area neighboring urban district of Sapporo city. It is a secondary boreal deciduous broadleaf forest which had grown after wildfire. Century-old japanese white birch is its dominant species but it is on the wane and oak trees are gradually taking over the forest. The climate of this area is classified in cool-temperate, with relatively hot and dry summer and heavily snowing winter (air temperature falls below -15℃ and snows more than a meter in depth). Forestry and Forest Products Research Institute (FFPRI) is observing the CO2 and energy budget in a typical secondary forest of northern Japan under various climatic conditions. The forest around the observation tower was badly damaged by typhoon in September 2004. Most of the fallen trees are left untouched for the purpose of studying the natural transition of the ecosystem. The observation tower had restarted its operation in June 2005, after the recovery from the typhoon damage. The site is supporting the continuous research activities on ecology, physiology, pedology and hydrology, and accumulating the results for the future studies which especially focus on transition of forest ecosystem.
About Tomakomai Experimental Forest (TOEF)
This experimental forest was established in 1904 as educational facility of Hokkaido University. Many studies on forestry, ecology and environmental science have been conducted, and CO2 flux measurement of deciduous broad leaf forest started in 1997. One of the current scientific topics in this forest is warming experiment of mature oak trees. In this experiment, to study the response of global warming on leaf physiological/phenological traits of oak, top-canopy branch and soil around trees have been warmed up from 2007. In this field trip, participants can visit this experimental site and view the oak canopies from a 30m crane. Participants also can see some spectral cameras mounted on the crane for phenological monitoring.
Leaders: Tatsuro Nakaji, Masahiro Nakamura, Onno Muller and Tsutom Hiura (Hokkaido Univ.).
Flux site information
See:
http://www.ffpri.affrc.go.jp/labs/flux/SAP_e.html (SAP)
http://www.asiaflux.net/network/033SAP_1.html (SAP)
http://www.asiaflux.net/network/063TOE_1.html (TOEF)
Course B: Two-day Trip to Flux monitoring sites in northern Hokkaido (October 29-30)
Sorry! Course B is now closed.
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| Sarobetsu flux site | Teshio Flux site from the air |
Course Map
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Schedule
October 29 |
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| AM | Depart from Hokkaido University |
| PM | Arrive at Sarobetsu mire |
| Overnight stay at Toyotomi Hot Spring Hotel | |
October 30 |
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| AM | Flux monitoring site at Teshio Experimental Forest, Hokkaido University |
| PM | Depart from Teshio |
| 20:00 | Arrive at Hokkaido University |
Excursion Fee
ca. 17,000 yen (including transportation, accommodation, dinner, breakfast, and 2 lunches )
Capacity
This course is limited to 30 participants.
About Sarobetsu Mire
Sarobetsu Mire (lat. 45 06' N, long. 141 42' E, 6.5 m asl.) is located in northern Hokkaido, Japan. It is part of the Rishiri-Rebun-Sarobetsu National Park. Sarobetsu Mire is located along the Sarobetsu River and faces the East Sea (Sea of Japan) across an old sand dune. A bog exists in the center of the mire, surrounded by a transition peatland. The total area of undeveloped peatlands in Sarobetsu Mire is about 2,800 ha and the depth of peat ranges between 3 and 6 m. CO2, water, and energy flux is observed at a Sphagnum-dominated bog and a transition peatland, where Sasa palmata, Moliniopsis japonica, Myrica gale var. tomentosa, and Ilex crenata var. paludosa dominate.
About Teshio Experimental Forest (TEEF)
Teshio Experimental Forest (TEEF) is the northernmost university experimental forest, and was established in 1912. Total area of TEEF is ca. 22,576 ha and is located within the Toikanbetsu River Basin. The lat. 45 deg. N line goes through at the center of this Forest. Annual mean air temperature is 5.7 deg. C, and maximum and minimum air temperatures are 30 and -30 deg. C, respectively, and the annual range sometimes exceeds 60 deg. C. Annual precipitation is ca. 1000 mm and snow falls from November to April. Maximum snow depth in winter is ca. 1.2 m at the experimental forest office and exceeds 2 m in the mountain range. Strong wind dominates from winter to spring caused by the dry monsoon.
This region had been affected by the glacial action and comprises low hills ranging from 20 to 580 m asl. The bedrock geology is Cenozoic sedimentary rocks on the west side of the Toikanbetsu River, with Mesozoic sedimentary rocks and serpentinite on the east side.
The dominant tree species are Abies sachalinensis, Picea jezoensis, Quercus Crispula, Betula ermanii, Betula platyphylla var. japonica and Acer mono, except in the area of serpentine rocks where Picea glehnii dominates. Many human-induced fires have occurred during the last 100 years in this region, because of the organized reclamation that began around the turn of the last century in northern Hokkaido. Most fires occurred from 1914 to 1954. As a result, most of the areas are presently covered by secondary forests, and Sasa grasslands formed subsequent to fires or logging. The understory of most primeval and secondary forests is dominated by Sasa senanensis and Sasa kurilensis.
Flux site information
See:
http://www.asiaflux.net/network/009TSE_1.html (Teshio site)
References
Sarobtsu Site
- Yamada, M., Sato, T. and Takahashi, H. (2009) A numerical simulation of the effect of water table levels on nocturnal air temperature and frost damage in mire, Japan. WETLANDS, 29, 176-186.
- Yamada, M. and Takahashi, H. (2004) Frost damage to Hemerocallis esculenta in a mire: relationship between flower bud height and air temperature profile during calm, clear nights. Canadian Journal of Botany, 82, 409-419.
- Tsuboya, T., Takagi, K., Takahashi, H., Kurashige, Y. and Tase, N. (2001) Effect of pore structure on redistribution of subsurface water in Sarobetsu Mire, northern Japan. Journal of Hydrology, 252, 100-115.
- Takagi, K., Tsuboya, T., Takahashi, H. and Inoue, T. (1999) Effect of the invasion of vascular plants on heat and water balance in the Sarobetsu Mire, northern Japan. WETLANDS, 19, 246-254.
- Takagi, K., Tsuboya, T. and Takahashi, H. (1998) Diurnal hystereses of stomatal and bulk surface conductances in relation to vapor pressure deficit in a cool-temperate wetland. Agricultural and Forest Meteorology, 91, 177-191.
TEEF Site
- Hayashi, K., Takagi, K., Noguchi, I., Fukuzawa, K., Takahashi, H., Fukazawa, T., Shibata, H. and Fujinuma, Y. (2009) Ammonia emission from a young larch ecosystem afforested after clear-cutting of a pristine forest in northernmost Japan. Water, Air and Soil Pollution, 200, 33-46.
- Takagi, K., Fukuzawa, K., Liang, N., Kayama, M., Nomura, M., Hojyo, H., Sugata, S., Shibata, H., Fukazawa, T., Nakaji, T., Oguma, H., Mano, M. Akibayashi, Y., Murayama, T., Koike, T., Sasa, K., Fujinuma, Y. (2009) Change in the CO2 balance under a series of forestry activities in a cool-temperate mixed forest with dense undergrowth. Global Change Biology, 15, 1275-1288.
- Nakaji, T., Ide, R., Takagi, K., Kosugi, Y., Ohkubo, S., Nasahara, N.K., Saigusa, N., and Oguma, H. (2008) Utility of spectral vegetation indices for estimation of light conversion efficiency in coniferous forests in Japan. Agricultural and Forest Meteorology, 148, 776-787.
- Saigusa, N., Yamamoto, S., Hirata, R., Ohtani, Y., Ide, R., Asanuma, J., Gamo, M., Hirano, T., Kondo, H., Kosugi, Y., Nakai, Y., Takagi, K., Tani, M. and Wang, H. (2008) Temporal and spatial variation in the seasonal patterns of CO2 flux in boreal, temperate, and tropical forests in East Asia. Agricultural and Forest Meteorology,148, 700-713.
- Hirata, R., Saigusa, N., Yamamoto, S., Ohtani, Y., Ide, R., Asanuma, J., Gamo, M., Hirano, T., Kondo, H., Kosugi, Y., Nakai, Y., Takagi, K., Tani, M. and Wang, H. (2008) Spatial distribution of carbon balance in forest ecosystems across East Asia. Agricultural and Forest Meteorology, 148, 761-775.
- Tsuji, H., Nakatsuka, T., Yamazaki, K., and Takagi, K. (2008) Summer relative humidity in northern Japan inferred from δ18O values of the tree-ring in (1776-2002 AD)-Influence of the paleoclimate indices of atmospheric circulation. Journal of Geophysical Research, 113, D18103.
- Fukuzawa, K., Shibata, H., Takagi, K., Satoh, F., Koike, T. and Sasa, K. (2007) Vertical distribution and seasonal pattern of fine-root dynamics in a cool-temperate forest in northern Japan: implication of the understory vegetation, Sasa dwarf bamboo. Ecological Research, 22, 485-495.
- Fukuzawa, K., Shibata, H., Takagi, K., Nomura, M., Kurima, N., Fukazawa, T., Satoh, F. and Sasa, K. (2006) Effects of clear-cutting on nitrogen leaching and fine root dynamics in a cool-temperate forested watershed in northern Japan. Forest Ecology and Management, 225, 257-261.
- Takagi, K., Nomura, M., Ashiya, D., Takahashi, H., Sasa, K., Fujinuma, Y., Shibata, H., Akibayashi, Y. and Koike, T. (2005) Dynamic carbon dioxide exchange through snowpack by wind-driven mass transfer in a conifer-broadleaf mixed forest in northernmost Japan. Global Biogeochemical Cycles, 19, GB2012.
- Takagi, K., Nomura, M., Fukuzawa, K., Kayama, M., Shibata, H., Sasa, K., Koike, T., Akibayashi, Y., Fujinuma, Y., Inukai, K. and Maebayashi, M. (2005) Deforestation effects on the micrometeorology in a cool-temperate forest in northern Japan. Journal of Agricultural Meteorology, 60, 1025-1028.
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