Remote sensing of deforestation along the Trans-Amazonian Highway
(2014) In Student thesis series INES NGEK01 20131Dept of Physical Geography and Ecosystem Science
- Abstract
- Deforestation is one of the biggest environmental challenges today. Especially severe has the deforestation of the Amazon rainforest been where at least 20% has been cleared the last 40 years. A time series analysis of deforestation rates between 1984 and 2013 has been performed on several sites close to the Trans-Amazonian highway BR230 in the Amazon and Para states. This is done by applying a supervised classification method to Landsat scenes to classify rainforest and deforested areas. It is concluded that annual deforestation rates often has been higher at the study sites than the general trend of deforestation for the Amazon in the past. In recent years deforestation often show to be lower than the trend for Amazonas. Reasons for the... (More)
- Deforestation is one of the biggest environmental challenges today. Especially severe has the deforestation of the Amazon rainforest been where at least 20% has been cleared the last 40 years. A time series analysis of deforestation rates between 1984 and 2013 has been performed on several sites close to the Trans-Amazonian highway BR230 in the Amazon and Para states. This is done by applying a supervised classification method to Landsat scenes to classify rainforest and deforested areas. It is concluded that annual deforestation rates often has been higher at the study sites than the general trend of deforestation for the Amazon in the past. In recent years deforestation often show to be lower than the trend for Amazonas. Reasons for the high rates in the beginning of the series could be closeness to towns, which makes it easier for deforestation and increases the export potential. Rates being lower in recent years are strongly related to the global economy but could also be a consequence of political governance due to increased awareness of the effects of deforestation, creation of protective areas and monitoring of illegal deforestation together with law enforcement. (Less)
- Abstract (Swedish)
- Svensk populärvetenskaplig sammanfattning
Fjärranalys av skogsskövling längs med den trans-amzoniska motorvägen
Skogsskövling är ett av de större miljöproblemen vi har idag. Speciellt snabb har skövlingen varit i Amazonas regnskog, där minst tjugo procent försvunnit de senaste 40 åren. Fjärranalys används för att uppskatta skogsskövling längs med den transamazoniska motorvägen (BR230). Analysen utförs genom en klassificering av satellitdata i en tidserie mellan 1984 och 2013 med hjälp av reflektansvärden. Resultatet visar att skövlingen ofta har varit högre än den generella trenden för Amazonas i början av tidsserien och att den ofta varit lägre på senare år. En anledning till de höga hastigheterna kan vara att studieområdena ligger nära... (More) - Svensk populärvetenskaplig sammanfattning
Fjärranalys av skogsskövling längs med den trans-amzoniska motorvägen
Skogsskövling är ett av de större miljöproblemen vi har idag. Speciellt snabb har skövlingen varit i Amazonas regnskog, där minst tjugo procent försvunnit de senaste 40 åren. Fjärranalys används för att uppskatta skogsskövling längs med den transamazoniska motorvägen (BR230). Analysen utförs genom en klassificering av satellitdata i en tidserie mellan 1984 och 2013 med hjälp av reflektansvärden. Resultatet visar att skövlingen ofta har varit högre än den generella trenden för Amazonas i början av tidsserien och att den ofta varit lägre på senare år. En anledning till de höga hastigheterna kan vara att studieområdena ligger nära städer eller byar och därför är dessa områden de som skövlats först. De låga hastigheterna kan kopplas ihop med den globala ekonomin och efterfrågan på marknaden. Andra anledningar är att brasilianska myndigheter försöker kontrollera skövlingen genom olika åtgärder som t.ex. genom övervakning och böter till de som olovligen skövlar och uppförandet av naturskyddsområden. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/4317679
- author
- Westin, Johan LU
- supervisor
- organization
- course
- NGEK01 20131
- year
- 2014
- type
- M2 - Bachelor Degree
- subject
- keywords
- Trans-Amazonian highway, remote sensing, deforestation, Amazon rainforest, BR230, Physical Geography and Ecosystem Science
- publication/series
- Student thesis series INES
- report number
- 300
- language
- English
- id
- 4317679
- date added to LUP
- 2014-02-24 12:41:44
- date last changed
- 2014-02-24 12:41:44
@misc{4317679,
abstract = {{Deforestation is one of the biggest environmental challenges today. Especially severe has the deforestation of the Amazon rainforest been where at least 20% has been cleared the last 40 years. A time series analysis of deforestation rates between 1984 and 2013 has been performed on several sites close to the Trans-Amazonian highway BR230 in the Amazon and Para states. This is done by applying a supervised classification method to Landsat scenes to classify rainforest and deforested areas. It is concluded that annual deforestation rates often has been higher at the study sites than the general trend of deforestation for the Amazon in the past. In recent years deforestation often show to be lower than the trend for Amazonas. Reasons for the high rates in the beginning of the series could be closeness to towns, which makes it easier for deforestation and increases the export potential. Rates being lower in recent years are strongly related to the global economy but could also be a consequence of political governance due to increased awareness of the effects of deforestation, creation of protective areas and monitoring of illegal deforestation together with law enforcement.}},
author = {{Westin, Johan}},
language = {{eng}},
note = {{Student Paper}},
series = {{Student thesis series INES}},
title = {{Remote sensing of deforestation along the Trans-Amazonian Highway}},
year = {{2014}},
}