EO-STEM    WWF & GREEN CORRIDOR    GALLERY    GLOSSARY

A gallery of photographs and satellite images from the Green Corridor (click for a larger version of each image).

Biodiversity

Sanyo
orchid Sao La Mountain Horned Lizard

The Golden-throated barbet
(Megalaima franklinii) is found in the broad-leaved forests of South East Asia, such as those in the Green Corridor.

Source: WWF Greater Mekong

Several new species of orchid have been discovered in the Green Corridor. Among them is the Anoectochilus annamensis.

Source: WWF Greater Mekong

The Sao La (Pseudoryx nghetinhensis). This rarely seen bovine is found in the mountains of Vietnam and Lao PDR, and was only discovered in the 1990s.

Source: WWF Greater Mekong

Mountain Horn Lizards, or Acanthosaura, are found in the forests of South East Asia.

Source: WWF Greater Mekong

Data Collection

Threats
Data collection Data Collection Trapping and poaching Logging
Data collection during biodiversity field surveys.

Source: WWF Greater Mekong
Trapping and poaching presents a significant threat to biodiversity.

Source: WWF Greater Mekong

Communities

Communities1 Community2 Communities3 Communities4
Community meetings
Participatory mapping was conducted by the EO-STEM Project in Hong Ha Commune, Thua Thien Hue province. The Traditional Ecological Knowledge of local communities is potentially valuable for biodiversity conservation managment.

Source: WWF Greater Mekong
Landscape
Landscape1 Landscape2 Landscape3 Landscape4

The landscape of the Green Corridor region.

Source: WWF Greater Mekong

Earth Observation

RADARSAT-1 RADARSAT-1 Multitemp SPOT IKONOS
RADARSAT-1 image (2005) of lowland Thua Thien Hue Province, Vietnam, including areas of plantation forest, agriculture and urban area. Note the Hue Citadel (Kinh Thành Hue), on the northern bank of the Huong River characterised by the geometric shape of the surrounding water channel.

Source: Canadian Space Agency
Multi-temporal RADARSAT
A multi-temporal composite image created from three RADARSAT-1 images (6 November 1999, 9 November 1999 and 16 November 1999) of lowland of Thua Thien Hue Province, Vietnam. The images were acquired during a major flooding event, which caused significant damage and resulted in the loss of several lives.

Source: Canadian Space Agency

SPOT-5, Aluoi District (2005)
SPOT-5 satellite image of an area of Aloui District, Vietnam, which included agriculture and plantation forest, impacted forest and some areas of rich forest land cover.

Source: SPOT Image

Ikonos Image, Aluoi District (2001). Ikonos is a high resolution imaging satellite that provides colour images with a ground resolution of between 4 and 1 metre. The example shown here are different land cover types found along a river in Aloui District, Vietnam, including agriculture, natural vegetation, rivers and settlements.

Source: Geoeye

Ho chi minh hIGHWAY

Ho Chi Minh Highway Landsat

The recently constructed Ho Chi Minh Highway improves the accessibility of Thua Thien Hue, and was a major engineering achievement, but the improved accessibility also poses a threat to the integrity of the rich forest landscape.

Source: WWF Greater Mekong

Landsat-TM 1989/ Landsat-ETM+ 2003
This image illustrates the change in land cover in a portion of southern Thua Thien Hue Province, Vietnam, close to the border between Aloui and Nam Dong Districts. The image acquired in 1989 shows the landscape before Ho Chi Minh Highway was constructed, which can be clearly seen in the image acquired in 2003 as a purple line. The images also reveal that some areas appear to have been reforested between 1989 and 2003, because some areas of purple colour (bare ground) are now green in the more recent image.

Source: AMNH / USGS