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K A D A R A L T R A N B A T A N G

,

^JA^rtJUAN ^LANGSUNG

DAN PINTASAN BAGI HUTAN BEKUNDER TUA

SPE5IS Grewia

tunentosa

I⁾I

LEMBAH

BURUNG

,

UNTVERSITI SAINS MALAYSIA ,

PULAU PINANG.

LEH:

ANUAR BIN EMBONG

LATIHAN ILNIAH INI

DIBUAT

BAGI NENENUHI

SYARAT UNTUK

MENDAPATKAN

IJAZAH

SERJANA

NUDA SASTERA DENGAN

PENDIDIKAN

⁽KEPUJIAN) (B

.

A

.

Ed

.

⁽Hons))

* ^* ^*^* _'.;;^*

DARI

BAHAGIAN GEOGRAFI

PUSAT PENGAJIAN

ILMU KEMANUSIAAN UNI

VERSITI SAINS MALAYSIA

PULAU PINANG

BAHAGIAN

GEOGRAFI

PUSAT

PENGAJIAN ILMU

KEMANUSIAAN

UN

IVERSITI SAINS

MALAYSIA

PULAU PINANG

(3)

<

c

I

;

/

\

Ku abadikan penulisan ini khas untuk:

I b u

Keluarga

Para pembimbing Dan tunangku

Serta manusia yang sentiasa ingin tahu tentang kekuasaan ALLAH

.

t

(4)

PENGHARGAAN s

/

D e n g a n N a r n a A l l a h V a n g N a h a P e m u r a h L a g i N a h a M e n g a a i h a n i.

.

D i d a l a m u s a h a m e n y i a p k a n L a t i h a n I l m i a h i n i

.

^{s a y a}

m e n g u ca p k a n b e r b a n y a k-b a n y a k r i b u a n t e r i m a k a s i h k e p a d a

E n .

Ulan R u s l a n I s m a i l y a n g t e l a h m e m b e ri t u n j u k a j a r d a n p a n d u a n a t a u n a s i h a t u n t u k m e n j a l a n k a n p e n y e l i d i k a n i n i

.

T i d a k l u p a j u g a k e p a d a

P u s a t

P e n g a j i a n I I m u K e m a n u s i a a n y a n g t e l a h m e m b e r i k a n k e m u d a h a n k o m p u t e r, p e r a l a t a n m a k m a l d a n k e m u d a h a n u n t u k m e n g g u n a k k a n n y a b a g i u n t u k m e m u d a h k a n k a j i a n

i n i o i j a l a n k a n

.

S a y a j u g a i n g i n m e n g u c a p k a n b e r b a n y a k

-

b a n y a k t e r i m a k a s i h k e p a d a:

E n .

M a z l a n A r i s

, E n .

Z a i d i B i d i n

, E n . Z u

1 1y a d i n i 1

.

•4,

E n .

A m i r n o r d i n C h e L a h d a n

E n .

N o h d A b d R a h m a n_J

N o o r A b d

.

U l a h a b

yang

t e l a h m e m b a n t u d a l a m m e n y e d i a k a n p e r a l a t a n d a n m e m a s a n g p e r a l a t a n d i l a p a n g a n s e r t a m e n g u m p u l d a t a

-

^{d a t a} s e p a n j a n g k a j i a n d i j a l a n k a n

.

2

.

C i k N o r A z i z a h S h a m s u d i n p e l a j a r U n i v e r s i t i M a l a y a t e l a h m e m b a n t u u n t u k m e n d a p a t k a n b a h a n

-

^{b a h a n}

y a n g

r u j u k a n y a n g b e r g u n a d a r i P e r p u s t a k a a n U n i v e r s i t i M a 1 a y a

.

H G F 4 2 1 (H i d r o l o g i) 3

.

K e p a d a s e m u a p e l a j a r k u r s u s

t e l a h m e m b a n t u s e d i k i t s e b a n y a k 9 1/9 2

s e s s i y a n g

d a l a m k a j i a n i n i

.

1

(5)

lupa _{j u g a} he pad a semua ral

-

^an

-

^rakan ^yang ^{tel ah}

Tidak

membet^'i dorongan dan bantuan^.s e t a r a tidak langsung

.

Sesung

-

guhnya semua ^jasa

-

^jasa kalian amatlah dihargai

.

"

SESUNGGUHNYA

^AKU AMAT

TAKJUB

TERHADAP CIPTAANMU^”

ANUAR

BIN

EMBONG

JALAN BILAL ,

KG

.

TENANG

85300

, LABIS

JOHOR

DARUL TA

^'

ZIM

PUSAT PENGAJI AN

ILMU

KEMANUSIAAN

(

BAHAGIAN GEOGRAFI

)

UNIVERSITI

SAINS

MALAYSIA

11800

, PULAU

PINANG

1 1• •

(6)

c

/

A B S T R A K

K a j i a n p i n t a s a n h u t a n s e k u n d e r t u a s p e s i s G r e w i a t o n e n

-

t e l a h d i j a l a n k a n d i a a t u k a w a s a n h u t a n s e k u n d e r d i, t o s a

L e m b a h B u r u n g , U n i v e r s i t i S a i n s M a l a y s i a

,

P u1a u P i n a n g

.

K a j i a n i n i a d a l a h b e r d a s a r k a n k e p a d a s a t u p l o t s e l u a s 1 0 0m

^ .

K a j i a n i n i m e l i b a t k a n p e n g u k u r a n a l i r a n b a t a n g d a n ja t u h a n y a n g d i j a l a n k a n s e l a m a e m p a t s e t e n g a h b u l a n

1 a n g s u n g i a it u

a n t a r a p e r t e n g a h a n b u l a n O g o s h i n g g a D i s e m b e r, 1991

.

S e p a n j a n g k a j i a n d i j a l a n k a n s e b a n y a k 3 8 k e j a d i a n h u j a n t e l a h d i r e k o d u n t u k m e l i h a t k a d a r p i n t a s a n d i d a l a m p l o t k a j i a n

.

J u m l a h t u r u n a n ^{h u j a n} b a g i 3 8 k e j a d i a n h u j a n t e r s e b u t i a1a h 6 0 7 . 3 0m m

.

D a r i p a d a 3 8 k e j a d i a n h u j a n t e r s e b u t

,

s e b a n y a k 2 5 k e ja d i a n h u^ja n b o l e h d i k e l a s k a n s e b a g a i h u j a n l e b a t

;

1 1 k e ja d i a n h u^ja n r e n y a i

;

d a n 2 k e j a d i a n h u^ja n g e r i m i s

.

P e n g k e l a s a n h u j a n i n i a d a l a h b e r d a s a r k a n k e p a d a p e n g k e 1 a s a n h u j a n B a r r y (1 9 6 9)

.

D a r i ^{j u m}1 a h ^{h u j a n} 6 0 7 . 3 0m m, n i 1 a i ^ja t u h a n 1a n g s u n g a d a l a h a nt a r a 107

.

h i n g g a 88.67

..

T i a d a n i l a i k o s o n g. b a g i jat u h a n l a n g s u n g d a l a m k a j i a n i n i k e r a n a t e r d a p a t b a h a g i a n t a np a l i t u p a n k a n o p i y a n g d i k i r a m e n e r i m a ^{h u j a n} y a n g s a m a d e n g a n j u m l a h t u r u n a n h u j a n k a w a s a n l a p a n g.

P u r a t a

n i l a i

ja t u h a n l a n g s u n g a d a l a h 63.307

.

. N i l a i a1i r a n b a t a n g p u l a h i n g g a 3.887

..

P u r a t a a1i r a n b a t a n g

(7)

<

a d a l a h ^{2 . 1 6}7

..

M a n a k a l a m l a i p i n t a s a n a d a l a h a n t a_{^ a} 9 . 7 3 7

.

91⁷.

h i n g g a d a n p u r a t a p i n t a s a n a d a l a h 3 4 . 5 0 7

.

D i1i h a t p e r h u b u n g a n a n t a r a j a t u h a n l a n g s u n g , a l I r a n b a t a n g d a n

p i n t a s a n d e n g a n t u r u n a n h u j a n

,

d i d a p a t i h u j a n m e m p u n y a l

p e r h u b u n g a n y a n g k u a t d e n g a n k e t i g a

-

^{t i g a} e l e m e n t e r s e b u t

.

N i l a i p e r h u b u n g a n a n t a r a j a t u h a n l a n g s u n g d e n g a n h u j a n i a l a h R²= 0 . 9 8 2 6, y

= -

^{1 1 5 5 1} ⁺ 0 . 8 3 4 7( x); a l i r a n b a t a n g d e n g a n

R²

=

0 . 6 9 7 0

,

y

h u j a n i a l a h

-

0 . 1 1 1 6 + 0 . 0 3 5 5(x); d a n

2

_

p e r h u b u n g a n p i n t a s a n d e n g a n h u j a n i a l a h R 0 . 5 2 3 8, ^y 1 . 2 9 0 2 + 0 . 1 2 9 1(x)

.

iv

(8)

ABSTRACT

A

^{s t u d y}

on t h e

i n t e r c e p t i o n

of old

s e c o n d a r y

forest Gretria tonentosa

s p e c i e s

w a s carried

o u t

in an

o p e n

plot of

s e c o n d a r y

forest called Lembah

B u r u n g,

Universiti S a i n s T h i s

^{s t u d y} w a s

base

on a p l o t

of forest 1 0 0 m .

M a l a y s i a.

T h e

i n v e s t e g a t i o n w a s

four and half

m o n t h

. that is from the

o o

rainfall

s v

^

^{n t}^?

middle of

A u g u s t

u n t i l December

, 1 9 3 1.

were recorded

.

T h e t o t a l rainfall for the 3 8 storms e v e n t s

w a s

6 0 7 . 3 0mm

.

From the 3 8 rainfall, 2 5 events can be clas sified

a s a ^{h e a v y}

rainfall

^,

11

^' l i g h t

rainfall and 2

a s

d r i z z l e

.

T h i s classifications was base

on b y B a r r y ( 1963 ).

From the

t o t a l

rainfall

,

the value

f o r t h r o u g h f a l l

a r e T h e r e are n o z e r o value for

t h r o u g h f a l l

between

1 0%

t o 3 8

%.

in t h i s

s t u d y

because there

a r e p a r t s

which does

n o t

h a v e a s s u m e d t o r e c e i v e the s a m e rainfall

c a n o p y c o v e r, a s

total that of rainfalls in an

o p e n

a r e a . T h e

a v e r a g e

v a l u e calculate for

t h r o u g h f a l l

are 6 3 . 3 0

%,

while the value for stemflow a r e between

z e r o

to

3 . 8 8

% . T h e

e v e r a g e

s t e m f l o w

w a s

2 . 1 6%

.

T h e

^{r a n g e}

for

i n t e r c e p t i o n are

between 9 . 7 3%

t o 9 1

% and t h e e v e r a g e

i n t e r c e p t i o n w a s 3 4 . 5

%

.

T h e r e e x i s t a

s t r o n g

correlation between

t h r o u g h f a l l,

stemflow

a n d

i n t e r -

c e p t i o n

w i t h rainfall

.

T h e

r e g r e s s i o n e q u a t i o n

for

t h r o u g h-

r 2 _

-

1.1551

⁺

0 . 8 3 4 7

⁽

x

)^,

0 . 9 8 2 6 ; f a l l w i t h r a i n f a l l is

^y

r 2 =

s t e m f l o w w i t h r a i n f a l l i s

^y

= -

0 . 1 1 1 6 ⁺ 0 . 0.3 5 5(

x

)

;

0 . 6 9 7 0

; and

i n t e r c e p t i o n

with r a i n f a l l i s

^y

r 2 =

1 . 2 9 0 2 ⁺

0 . 5 2 3 9

.

0 . 1 2 9 1

(

x

⁾,

V