Course Project : CE-287 Geo

informatics

DEFORESTATION IN

AMAZON

INTRODUCTION

AREA= AMAZON (RIO BRANCO,BRAZIL)

The Amazon rainforest is the world’s largest tropical

rainforest, famed for its bio diversity. The

rainforest is seen as a resource for cattle pasture,

valuable hardwoods, housing space, farming

space, road works and medicines. Scientists

using NASA satellite data found in 2006 that

clearing for mechanized cropland had become a

significant force in Brazilian Amazon

deforestation. This change in land use may alter

the region's climate

We collected the datasets i.e. images from the

internet. The datasets were then analyzed in

ERDAS IMAGINE. By interpreting the images the

deforestation was evident. Images were digitized

for ease of analysis.

RIO BRANCO, AMAZON

ABSTRACT:

We used Erdas Imagine 2013 to observe the

deforestation of Amazon Forest by taking in

account its particular area of Rio Branco having

latitude 9˚ 58’ 31’’ and longitude 67˚ 49’ 29’’. We

took the datasets from internet

(earthexplorer.usgs.gov), performed stacking,

subsetting, georeferencing, area calculations, and

used other such tools to observe the

deforestation of particular area and its conversion

for nonforest use.

Targeted Amenities

FORESTED AREA

CLEARED OR DEFORESTED AREA

BUILT UP AREA

Steps followedData Acquisition

Site Selection

Image Download

Stacking

Opening Image in ERDAS 2013

Steps followedClassification Using different techniques

Calculation of area

Checking Deforestation

Concluding regarding observations

Prediction Of Deforestation in 2030

1990 NDVI IMAGE

Supervised classified NDVI image

(Area selection ) 2000

Step 2: (NDVI) Image 2000

Supervised Classified Image

2000

GREEN Color =VegetationBLACK =Built up

and all other areas

2015

AREA OF VEGETATION=11122.2 Sq. miles

1990 Results

AREA OF VEGETATION=10419.4 Sq. miles

2010 Results

RESULTS

% change in Vegetation =11122.2−10419.4

11122.22

*100

=6.31%

So 6.31% of vegetation is lost due to

deforestation from 1990 to 2000

Prediction

According to results and data calculated a rough

estimate is that as exponential growth of human

population is also a factor if Reforestation is not

done 40% of the forest will be lost by 2030