SZN: Hokkaido University Shizunai Livestock Farm
General site details
| Site name | Hokkaido University Shizunai Livestock Farm |
|---|---|
| AsiaFlux site code | SZN |
| Location | Shizunai, Shinhidaka, Hokkaido, Japan |
| Position | 42º 26' N, 142º 29' E (World Geodetic System 1984) |
| Elevation | 120-130 m above sea level (World Geodetic System 1984) |
| Slope | 1deg sloping down to south |
| Terrain type | almost flat |
| Area | 100 m x100 m for each of Chemical fertilizer plot and Manure plot(Total area is 7 ha) |
| Fetch | 50-70 m |
| Climate | cool temperate, Dfb |
| Mean annual air temperature | 7.9 deg C (1979-2000) |
| Mean annual precipitation | 1365 mm (1979-2000) |
| Vegetation type | hay meadow (Chemical fertilizer and Manure plots) |
| Dominant Species (Overstory) | reed canary grass (Phalaris arundinacea L.), meadow foxtail (Aleopecurus pratensis L.) |
| Dominant Species (Understory) | - |
| Canopy height | Maximum 1.2 m |
| Age | More than 30 years in 2010 |
| LAI | - |
| Soil type | Thaptic Melanudands (Soil Survey Staff, 2006, Mollic Andosol (IUSS Working Group, WRB, 2006)) |
Observation
Eddy Covariance method (CO2)
| System | Open-path system |
|---|---|
| Wind speed | Sonic anemometer-thermometer (CSAT3, Campbell Scientific) |
| Air temperature | Sonic anemometer-thermometer (CSAT3, Campbell Scientific) |
| Water vapor | NDIR (LI-7500, Li-Cor, USA) |
| CO2 | NDIR (LI-7500, Li-Cor, USA) |
| Measurement height | 2.51 m at mature plot, 2.42 m at fertilizer plot |
| Sampling frequency | 10 Hz |
| Averaging time | 30 min |
| Data logger | CR23X-4M (Campbell, USA) |
| Data storage | CF |
| Original data | Raw data |
Meteorology
| Observation items | Levels/Depth | Instrument |
|---|---|---|
| Global solar radiation(incoming) | - | |
| Global solar radiation (outgoing) | - | |
| Long-wave radiation(incoming) | - | |
| Long-wave radiation(outgoing) | - | |
| Net radiation | - | |
| PPFD (incoming) | 1.6 m | Quantum sensor (LI-COR LI-190SA) |
| PPFD (outgoing) | 1.6 m | Quantum sensor (LI-COR LI-190SA) |
| Direct / diffuse radiation | - | |
| Direct / diffuse PPFD | - | |
| Air temperature | 2.5 m | Ventilated Pt resistance thermometer (HMP-45A, Vaisala) |
| Humidity | 2.5 m | Capacitive hygrometer (HMP45A, Vaisala) |
| Soil temperature | -0.05, -0.1, -0.5 m | T-type thermocoupule (T-soil4, Meiwafosis |
| Soil heat flux | - | |
| Soil water content | -0.05, -0.1 -0.5 m | Dielectric aquameter (EC20, DECAGON) |
| Wind speed | 2.51m at mature plot, 2.42m at fertilizer plot | Sonic anemometer-thermometer (CSAT3, Campbell Scientific) |
| Wind direction | 2.51m at mature plot | Sonic anemometer-thermometer (CSAT3, Campbell Scientific) |
| Barometric pressure | 2.42m at fertilizer plot | Sonic anemometer-thermometer (CSAT3, Campbell Scientific) |
| Precipitation | - | |
| CO2 concentration | - |
Other
| Soil respiration | Static closed chamber |
| Photosynthesis | Static closed chamber |
| Ecological Investigation | Static closed chamber |
| CH4 | Static closed chamber (biweekly) 2004-2007 |
| N2O | Static closed chamber (biweekly) 2004-2007 |
Other Information
| Fertilizer plot and manure plot were established in September 2004. The plots were cut twice per year and were fertilized at the beginning of each growing cycle.Fertilizer and manure application: [Average from 1998 to 2004] Manure: 5.3 FM t ha-1, Slurry: 3.5 FM t ha-1, Chemical Fertilizer:96 kg N ha-1, [Manure plots (2005~)] Manure: 43-44 FM t ha- 1, Chemical Fertilizer: 130-133 kg N ha-1, [Fertilizer (2005~)] Chemical Fertilizer: 164-183 kg N ha-1 |
Observation Period and Data Availability
| Measurement Period | from August 2004 to August 2007 |
|---|---|
| Measurement Frequency | Continuous |
| Data Availability | N/A |
Contact
Ryusuke HATANO (hatano [at] chem.agr.hokudai.ac.jp)
Graduate School of Agriculture, Hokkaido UniversityKita9,Nishi9,
Kita-ku,Sapporo,Hokkaido 060-8589,Japan
TEL : + 81-11-706-3857FAX : + 81-11-706-2494
Akira MIYATA (amiyat [at] niaes.affrc.go.jp)
Agro-Meteorology Division, National Institute for Agro-Environmental Sciences (NIAES)3-1-1, Kannondai, Tsukuba, Ibaraki 305-8604, Japan
TEL: + 81-29-838-8239FAX: + 81-29-838-8211
Mariko SHIMIZU (mariko-s [at] chem.agr.hokudai.ac.jp)
Graduate School of Agriculture, Hokkaido UniversityKita9,Nishi9,
Kita-ku,Sapporo,Hokkaido 060-8589,Japan
TEL : + 81-11-706-2503FAX : + 81-11-706-2494
Infrastructure
2.5m high tower, AC 100V
Research Fund
Research grants from Racing and Livestock Association organized by Japan Grassland Agriculture & Forage Seed Association for the Greenhouse Gas Emissions Mitigation Project in Japanese Grasslands
Calibration Information
Open-path analyzers were calibrated approximately every year with standard CO2 gases and a dew point generator (LI610; LI-COR Inc., USA)
Publication
Shimizu, M., Marutani, S., Desyatkin, A.R., Jin, T., Hata, H., Hatano, R. 2009. The effect of manure application on carbon dynamics and budgets in a managed grassland of Southern Hokkaido, Japan. Agriculture, Ecosystems & Environment. 130: 31-40.
Jin, T., Shimizu, M., Marutani, S., Desyatkin, A.R., Iizuka, N., Hata, H., Hatano, R. 2010. Effect of chemical fertilizer and manure application on N2O emission from reed canary grassland in Hokkaido, Japan. Soil Science & Plant Nutrition. 56: 53-65.