BNS: Xishuangbanna Site

General site detail (Updated 11 August 2014)
 Site name
 Xishuangbanna Site
 AsiaFlux site code
 Location Menlung town, Xishuangbanna, Yunnan Province
 Position 101º 12' E, 21º 57' N
 Elevation 756 m above sea level
 Terrain type
 Small basin surrounded by low mountains and hills
 Climate Tropical rain forest
 Mean annual air temperature
 21 deg C (long term)
 Mean annual precipitation
 1492 mm (long term)
 Vegetation type
 Tropical rain forest
 Domestic species (Overstory)
 Pometia   tomentosa,  Terminalia   myriocarpa,   Gironniera   subaequalis   and
Garuga floribunda

 Dominant species (Understory)
 Canopy height
 35 m
 Age -
 LAI -
 Soil type

Eddy Covariance method (CO2)
 System Open-path system  (CO2 flux, latent heat flux)
 Wind speed 
 Three dimensional sonic anemometer
 Air temperature
 Three dimensional sonic anemometer
 Water vapor
 Open-path analyzer (LI-7500, LI-COR, USA)
 CO2 Open-path analyzer (LI-7500, LI-COR, USA)
 Measurement height
 48.8 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR5000 (CSI USA)
 Data storage
 Original data
 Raw data

 Observation items
  Levels/ Depth
 Global solar radiation(incoming)
 42 m CNR1 (Kipp & Zonen, The Netherlands)
 Global solar 
radiation (outgoing)
 42 m CNR1 (Kipp & Zonen, The Netherlands)
 Long-wave radiation(incoming) 
 42 m CNR1 (Kipp & Zonen, The Netherlands)
  Long-wave radiation(outgoing) 42 m CNR1 (Kipp & Zonen, The Netherlands)
 Net radiation
 42 m CNR1 (Kipp & Zonen, The Netherlands)
 PPFD (incoming)
 PPFD (outgoing)
 Direct / diffuse radiation
 Direct / diffuse PPFD
 Air temperature
 42 m HMP45C, VAISALA, Finland
 Humidity 42 m HMP45C, VAISALA, Finland
 Soil temperature
 5 cm 
 Soil heat flux
 Soil water 
 5 cm
 CS616, Campbell Scientific Inc., Logan, UT, USA
 Wind speed
 70 m Anemometer (A100R, VECTOR INSTRUMENTS)
 Wind direction
 70 m Wind vane (W200P, VECTOR INSTRUMENTS)
 Precipitation 69.8 m Tipping-bucket rain gauge (52203, RM YOUNG)
 Soil respiration
 Photosynthesis -
 Ecological investigation
Observation Period and data Availability
 Measurement Period
 From July 2002 to present
 Measurement Frequency
 Data Availability
 2003-2005 in AsiaFlux database
 Zhang Yiping (yipingzh [at]
 Xishuangbanna Tropical Botanical Garden, CAS
 88 Xuefu Road, Wuhua District, Kunming, 650223, P.R. China
 Jianwei Tang, Min Cao, Liqing Sha, Zheng Zheng, Youxin Ma