In Paraguay, Terra-i performed habitat status monitoring every 16 days from the 1st January 2004 until the 31th of December 2011. During the 8 years studied it detected a cumulative habitat loss of 2,209,325 hectares, equivalent to an annual national loss rate of 276,166 ha / year.
In Paraguay, Terra-i performed habitat status monitoring every 16 days from the 1st January 2004 until the 31th of December 2011. During the 8 years studied it detected a cumulative habitat loss of 2,209,325 hectares, equivalent to an annual national loss rate of 276,166 ha / year. The departments of Boquerón and Alto Paraguay registered the highest losses, with 1,242,156 hectares and 606,794 hectares lost respectively between the years 2004 and 2011.
The most impacted ecoregion was the Dry Chaco, which registered 93% of the deforestation that occurred in Paraguay during the years analysed. This ecosystem is present in both the departments of Boquerón and Alto Paraguay. Closed Deciduous forests within the Dry Chaco were the most heavily affected ecosystems.
View video : Deforestation Gran Chaco Paraguay
From May 8-12, 2017, the Terra-i team, together with staff from the DGOTA of Peru's Ministry of Environment, carried out the first field validation of vegetative land cover changes detected during Terra-i monitoring for 2016 and 2017, using the technology UAV. This work was carried out under the framework of the project “Sustainable Amazonian Landscapes”. The team carried out over-flights with a Phantom 3 advanced rotor drone and a fixed-wing Ebee drone in seven townships of Yurimaguas. The objective of this work was to recognize the dynamics of land cover and land use changes in the region while at the same time to validate the accuracy of the detections of forest loss being monitored by Terra-i in Yurimaguas.
The Terra-i team has worked hard on renovating Terra-i’s website since early this year. A set of new features on the website provides interactive contents and facilitates adaptation to the mobile devices of our users. The fresh website was developed using the latest update of an open-source, Java-based web system, Magnolia CMS 5.4.4. This update was customized to add different categories of interaction such as news, vegetation cover changes, and information, among others.
Globally more than 1 billion people depend on forests for their livelihoods. Forests play a crucial role in climate regulation, ecosystem services provision and regulation, water supply, carbon storage and many other functions that support biodiversity. Currently the global rate of deforestation is substantial, and there is a growing need for timely, spatially explicit data that flag natural vegetation changes due to human activities.
The latest update of Terra-i has been used with the Co$ting Nature ecosystem services assessment tool to understand the impacts of recent forest loss in Colombia on biodiversity and ecosystem services.
During the 1st and 12th of June 2015, the Terra-i team, together with the Instituto de Investigaciones de la Amazonía Peruana (IIAP) and the Universidad Nacional Agraria La Molina (VLIR-UNALM), conducted the second field validation of the data produced by the Terra-I system. This time, the study area was the Yurimaguas district, Alto Amazonas province, Loreto region (Peru). We used information on populated places, main roads, rivers and information on land cover changes detected for 2013, 2014 and 2015 to define the 65 sampling points (or Terra-I pixels) for the validation process (Figure 1).