FRIM-NIES-UPM Joint research project on tropical forest ecology and biodiversity Project progress presentation (seminar) & the 20th Steering Committee Meeting, Tsukuba 24 -25 September 2010

Lilik Budi Prasetyo, Haryanto Yatab Harjanto, Yudi Setiawan, Perman, Tri Permadi

Supported by:

Japan International Cooperation Agency Department of Forestry, Indonesia

Underlying Cause of Deforestation

in Mount of Halimun Salak National Park,

West Java Indonesia

FRIM-NIES-UPM Joint research project on tropical forest ecology and biodiversity Project progress presentation (seminar) & the 20th_{Steering Committee Meeting}

Tsukuba 24 -25 September 2010

Introduction

Java :

Total population : 127 millions, 54% of Indonesia population (234 millions) Population density : 915 inhabitants / Sq.km,

Deforestation in Java Island during 2000 –2005 : 800 thousands ha

Deforestation model (Prasetyo,2010)

Logistic Regression Model using village level social economy data & Physical condition data.

Deforestation occurred in mountainous areas (mostly protected areas). Unfortunately, the available spatial variables of model cannot fully explain the deforestation process.

Study Site

Area : 1992 : 40 000 ha 2003 : 113 357 ha

Objectives

1. Look for appropriate data processing for

longterm land use-land cover change in

mountainous/hilly areas (1989-2008) (Prasetyo,

Yudi, Permana)

2. Investigate underlying cause of deforestation

within period of 1989

–

2004 (Yatab, Harjanto &

Prasetyo)

1989

1990

1991

1992

1993

1994

1998

1999

2001

2003

2004

LANDSAT Imagery 1989 - 2004

LANDSAT 1990 –2004 Normalized (Corrected)

1). Geometric correction 2). Normalize/Radiometric

(Relative Radiometric Normalization) (Pseudo Invariant set) 3). Topographic correction

(Minnaert constant) 4). Subset to boundary

Select Training Area

Supervised Classification (Maximum Likelihood Method)

Accuracy Assessment Ground Truth

Land Use/ Land Cover Maps

Pre-Processing

Processing

Research Flow

Before

After

RESULT : Topographic correction (Minnaert)

1989

1992

1993

1994

1995

1998

2001

2003

2007

2008

DEFORESTATION PROCESS

DEFORESTATION BASED ON VILLAGE

0.00 1000.00 2000.00 3000.00 4000.00 5000.00 6000.00 7000.00 DESA SIRNAGALIH DESA KIARASARI DESA CISUNGSANG DESA CIPEUTEUY DESA SIRNARASA DESA SIRNARESMI DESA LEBAKSITU DESA CISARUA DESA CITOREK DESA CIUSUL DESA MALASARI D E S A LUAS (Ha)

1989 1990 1991 1992 1993 1994 1995 1997 1998 2001 1003 2004

0.00 500.00 1000.00 1500.00 2000.00 2500.00 DESA BANTARKARET DESA MAJASARI DESA KUJANGSARI DESA MEKARJAYA DESA CICADAS DESA CIPARAY DESA CIKIRAY DESA SITUMULYA DESA PURWABAKTI DESA CIHAMERANG Lu as (H a) DESA 2004 1003 2001 1998 1997 1995 1994 1993 1992 1991 1990 1989

Villages Sample Selection

Sample selection based on :

a. Traditional & Non Traditional b. Enclave & non Enclave

Interview/Questioner /secondary data:

a. Demography

b. Economic Activity c. Relation with forest

resources

d. Welfare (income, agric.land ownership etc)

Statistical Analysis : Regression Dependent variables : Deforestation,

Independent variables : Secondary data & interview

•

Topographic correction is applicable for low to medium

slope, but over corrected for steep slope.

•

Significance Factor contributed to deforestation :

population density, population growth, land ownership

size, settlement and agricultural expansion.

•

In case of non traditional villages & non-enclave,

deforestation was influenced by :

–

Population growth rate, land owbership size.

Population density, settlement expansion

•

In case of traditional dan non-enclave village :