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2 - datasets found


Watershed Classification for the Lower Mekong Basin

Watershed Classification for the Lower Mekong Basin clipped with LMB boundary

About this Dataset

Resource Type Dataset
Unique Code 2806
Resource Kind MapDigital
Maintenance Frequency AsNeeded
Access Constraints No restriction
Use Constraints Copyright
Price Category PriceCategory-001
Resource Format(s) Grid
DataQualityStatement Positional accuracy is assumed to be the same as contour dataset since it derived from modeling the contour datasets of four countries.
ProcessDescription AREA : Lower Mekong Basin, including: - Cambodia (LMB part) - Laos (LMB part) - Thailand (LMB part) - Vietnam (LMB part); SOURCE MAP : American topo maps 1:50'000 and partially Russian topo maps 1:100'000; SOURCE DATA SET : Watershed Classification Projects, WSCP, Centre for Development and Environment, University of Bern. Consultant to MRCS' Watershed Classification Project; SOURCE AGENCY : Mekong River Commission, needs special permission from MRCS and Laos; GENERATION : Watershed Classification Project's report; STATUS : Last update: Compiled October 2000 (Update 2),June 2001, by A. Heinimann (TA, WSCP), Thai data incop.(A.Heinimann) Completion status: % (100 = complete); COMMENTS : General description: The Watershed Classification describes the potential degradation risk when cleared of the original vegetation cover; The item 'value' is encoded as follows: 1= Protection Forest. Areas with very steep slopes and rugged landforms, commonly uplands and headwater areas. Critical areas for water and soil resources management. Recommended land use: as a rule, these areas should be under permanent forest cover. Other existing land uses based on traditional rights and practices should be considered carefully with regard to their impact on water and soil conservation. 2 = Commercial Forest. Areas with steep slopes, usually at higher elevation. Landforms are in general less susceptible to water and soil degradation than under WSC Class 1. Recommended land use: forest (conservation and production forests), agro-forestry and grazing, if accompanied by strict conservation measures. 3 = Agro-Forestry. Areas with moderate to steep slopes and less erosive landforms. Includes uplands and foot zones of slopes. Wider range of land use tolerable than in WSC Classes 1 and 2 from point of view of water and soil conservation. May be used for commercial forest, grazing and combinations of trees and agricultural crops, if appropriate conservation measures are applied. 4 = Upland Farming. Gently sloping lands. Moderate need for water and soil conservation depending on local conditions. Wide range of land use possible from point of view of water and soil conservation: agriculture and forest. 5 = Lowland Farming. Gently sloping land and flat areas. Suitable for a wide range of land use from point of view of water and soil conservation: paddy rice, other agricultural uses and forest. WSC Equation: WSC = a + (b * slope) + (c * elevation) + (d * landform) Factor Units: slope: percent, elevation: decameters, landform: classes 1-21 Parameters: a = 1.709, b = -0.035, c = -0.002, d = 0.163 RASTER: Resolution: 250m; CELL ATTRIBUTES : VALUE ATTRIBUTE TABLE (vat) for grids Value 1 Watershed Class 1 2 Watershed Class 2 3 Watershed Class 3 4 Watershed Class 4 5 Watershed Class 5.
SpatialRepresentationType Grid
CreationDate 2001-01-01
Publication Date 2001-01-01

Metadata Source

  • ISO-19139 ISO-19139 Metadata

Watershed Classification for the Lower Mekong Basin

Watershed Classification for the Lower Mekong Basin clipped with LMB boundary

About this Dataset

Resource Type Dataset
Unique Code 2807
Resource Kind MapDigital
Maintenance Frequency AsNeeded
Access Constraints No restriction
Use Constraints Copyright
Price Category PriceCategory-001
Resource Format(s) Grid
DataQualityStatement Positional accuracy is assumed to be the same as contour dataset since it derived from modeling the contour datasets of four countries.
ProcessDescription AREA : Lower Mekong Basin, including: - Cambodia (LMB part) - Laos (LMB part) - Thailand (LMB part) - Vietnam (LMB part); SOURCE MAP : American topo maps 1:50'000 and partially Russian topo maps 1:100'000; SOURCE DATA SET : Watershed Classification Projects, WSCP, Centre for Development and Environment, University of Bern. Consultant to MRCS' Watershed Classification Project; SOURCE AGENCY : Mekong River Commission, needs special permission from MRCS and Laos; GENERATION : Watershed Classification Project's report; STATUS : Last update: Compiled October 2000 (Update 2),June 2001, by A. Heinimann (TA, WSCP), Thai data incop.(A.Heinimann) Completion status: % (100 = complete); COMMENTS : General description: The Watershed Classification describes the potential degradation risk when cleared of the original vegetation cover; The item 'value' is encoded as follows: 1= Protection Forest. Areas with very steep slopes and rugged landforms, commonly uplands and headwater areas. Critical areas for water and soil resources management. Recommended land use: as a rule, these areas should be under permanent forest cover. Other existing land uses based on traditional rights and practices should be considered carefully with regard to their impact on water and soil conservation. 2 = Commercial Forest. Areas with steep slopes, usually at higher elevation. Landforms are in general less susceptible to water and soil degradation than under WSC Class 1. Recommended land use: forest (conservation and production forests), agro-forestry and grazing, if accompanied by strict conservation measures. 3 = Agro-Forestry. Areas with moderate to steep slopes and less erosive landforms. Includes uplands and foot zones of slopes. Wider range of land use tolerable than in WSC Classes 1 and 2 from point of view of water and soil conservation. May be used for commercial forest, grazing and combinations of trees and agricultural crops, if appropriate conservation measures are applied. 4 = Upland Farming. Gently sloping lands. Moderate need for water and soil conservation depending on local conditions. Wide range of land use possible from point of view of water and soil conservation: agriculture and forest. 5 = Lowland Farming. Gently sloping land and flat areas. Suitable for a wide range of land use from point of view of water and soil conservation: paddy rice, other agricultural uses and forest. WSC Equation: WSC = a + (b * slope) + (c * elevation) + (d * landform) Factor Units: slope: percent, elevation: decameters, landform: classes 1-21 Parameters: a = 1.709, b = -0.035, c = -0.002, d = 0.163 RASTER: Resolution: 250m; CELL ATTRIBUTES : VALUE ATTRIBUTE TABLE (vat) for grids Value 1 Watershed Class 1 2 Watershed Class 2 3 Watershed Class 3 4 Watershed Class 4 5 Watershed Class 5.
SpatialRepresentationType Grid
CreationDate 2001-01-01
Publication Date 2001-01-01

Metadata Source

  • ISO-19139 ISO-19139 Metadata