OZCAR-RI M-TROPICS, Dong Cao - Viet Nam

Basic Information
Site Name
OZCAR-RI M-TROPICS, Dong Cao
Short name
M-TROPICS/MSEC-Dong Cao
Country
Viet Nam
Web Address
M-TROPICS website
M-TROPICS Twitter
Site Manager
Dr. Olivier RIBOLZI
Dr. Laurie BOITHIAS
Site Description
Dong Cao is a small agricultural catchment (47 ha) of northern Vietnam, located at 70 km from Hanoi, in a sloping land environment. The objective is to monitor the impacts of land use changes (from cassava to fodder and tree plantations) and possible climate changes upon hydrological and sedimentary fluxes and budgets. The catchment has an elevation of 125 m to 485 m and slopes range from 15 to 120%. Monitoring devices include an automatic meteorological station, and weirs to monitor discharge, suspended sediment and bedload. More information is available on https://mtropics.obs-mip.fr/ and in the following paper: Valentin, C., et al., 2008. Runoff and sediment losses from 27 upland catchments in Southeast Asia: Impact of rapid land use changes and conservation practices. Agric. Ecosyst. Environ. 128, 225–238. https://doi.org/10.1016/j.agee.2008.06.004
Last modified
2024-03-04 09:03:21

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General Characteristics and Status
Site Status
Operational
Year Established
2001
Observed properties
Affiliation and Network Specific Information
Affiliation
ILTER✔This site is a verified "ILTER" member.
OZCAR RI✔This site is a verified "OZCAR RI" member.
LTER Europe✔This site is a verified "LTER Europe" member.
LTER France✔ (CZO_EU_FR_093)This site is a verified "LTER France" member.
Critical Zone Collaborative Network (CZ Net)✖The affiliation of this site with "Critical Zone Collaborative Network (CZ Net)" is not verified by the network on DEIMS-SDR.
Photos
not defined
not defined
Geographic
View in site map
Centroid/Representative Coordinates

Latitude: 20.95569 Longitude: 105.48541

Size
ca. 47.00ha
Elevation (average)
248.00msl
Elevation (min)
120.00msl
Elevation (max)
480.00msl
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Site information [.json]

Centroid/representative coordinates [.shp] [.kml]
Bounding Box [.shp] [.kml]
Boundaries [.shp] [.kml]
GEO-BON Biome
Terrestrial
Biome
Agricultural
Ecosystem Type
Agricultural
Air Temperature: Average Annual
21.40°C
Precipitation Annual
1777.00mm
Landforms
Mountain
Geology
Triassic schist
Vegetation
The Dong Cao catchment is mainly covered with shrubland and grasses (52%), fodder grass (Brachiaria ruziziensis; 20%), tree plantation (Acacia mangium, 25%), and very limited annual crops (3%).
Soils
According to FAO soil classification (1998), the dominant soil type in the watershed is Ferralic Acrisol with a soil depth of approximately 1m. Some Cambisols and Fluvisols occur along the stream course.The main characteristics of these soils are: a heavy texture with clay contents around 50% and are rather porous with an average bulk density of 1.24 g cm3.
Hydrology
The torrential stream of the Dong Cao catchment supplies water to paddy fields located downslope and to a small reservoirs. The flow is permanent.
Site Type
Stationary land-based site
Design of Experimentation
partly experimentation
Scale of Experimentation
beyond catchment scale
Design of Observation
mainly observation
Scale of Observation
beyond catchment
Permanent Power Supply
Yes
Equipment
Observation devices » Measurement tower » No tower on site
Data infrastructure » Data services » Data portal
Data infrastructure » Data storage » Paper
Data infrastructure » Data storage » Structured file
Supporting infrastructure » Transportation » Vehicle 2WD
Supporting infrastructure » Transportation » Vehicle 4WD
Supporting infrastructure » Staff room at site » 2 - 5 places
Supporting infrastructure » Lodging at site » No lodging possible
Energy and data transmission infrastructure » Data transmission » Data Transmission Type (from site) » Cable based
Energy and data transmission infrastructure » Data transmission » Data Transmission Type (within site) » No within site data transmission
Energy and data transmission infrastructure » Energy supply » Permanent Power Supply Location » Central station(s)
Energy and data transmission infrastructure » Energy supply » Permanent Power Produced » 5-10 kW
Accessible All Year
Yes
All parts of Site Accessible
Yes
Access Type
regular car
Permanent Operation
Yes
Site Visit Interval
15
Maintenance Interval
15
General Data Policy
Co-authorship on publications resulting from use of the dataset
The data provider must be offered co-authorship for publications using this dataset at least within the metadata description
Formal acknowledgement of the dataset providers
Reprints of articles using the dataset must be provided to the data provider
The dataset provider is given a complete list of all products that make use of the dataset
Data Policy URL
https://mtropics.obs-mip.fr/
LTER Site Classification
Regular