Dekomposisi Serasah Avicennia alba pada Berbagai Tingkat Salinitas di Kampoeng Nipah Desa Sei Nagalawan, Kecamatan Perbaungan
LAMPIRAN
38
Universitas Sumatera Utara
Lampiran 1. Bobot kering (g) sisa serasah Avicennia alba tiap ulangan pada
berbagai tingkat salinitas.
Salinitas
Ulangan
Lama masa dekomposisi
(hari)
30
45
60
0
15
75
90
U1
50
48.21
43.33
33.77
21.04
14.23
11.07
U2
50
48.13
42.92
U3
50
48
43.07
33.46
19.99
13.58
10.81
33.83
19.86
12.98
10.33
sub total
150
144.34
129.32
101.06
60.89
40.79
32.21
rata rata
50
48.11
43.11
33.69
20.30
13.60
10.74
U1
50
47.52
42.16
32.17
19.97
13
9.71
U2
U3
50
50
47.31
48.01
43.53
42.22
30.1
32.05
20.03
19.89
12.85
12.65
10.15
9.93
150
50
142.84
47.61
127.91
42.64
94.32
31.44
59.89
19.96
38.5
12.83
29.79
9.93
U1
50
48.67
44.2
34.18
22.43
15.55
12.48
U2
50
49.02
43.76
33.97
21.65
14.67
13.39
U3
50
48.88
43.87
33.76
21.77
14.92
13.18
Sub total
150
146.57
131.83
101.91
65.85
45.14
39.05
rata-rata
50
48.86
43.94
33.97
21.95
15.05
13.02
0-10 ppt
10-20 ppt
sub total
rata rata
20-30 ppt
39
Universitas Sumatera Utara
Lampiran 2. Perhitungan Laju Dekomposisi Metode Olson (1963):
In (Xt/Xo)
= -kt
Keterangan : X = Bobot kering serasah setelah periode pengamatan ke-t (g)
t
X
= Bobot serasah awal (g)
k
= laju dekomposisi serasah
e
= Bilangan logaritma natural (2,72)
t
= Periode pengamatan (hari)
0
1. Xo = 50 g
Xt
= 10,74 gr
t
=
hari setahun
hari lama dekomposisi
t
= 365 = 4,05
90
-4,05 k = In 10,74
50
-4,05 k = In 0,2148
-4,05 k = -1,5380
k = 0,3797
2. Xo = 50 g
Xt
= 9,93 gr
t
=
t
= 365 = 4,05
90
hari setahun
hari lama dekomposisi
-4,05 k = In 9,93
40
Universitas Sumatera Utara
50
Lampiran 2. Lanjutan
-4,05 k = In 0,1986
-4,05 k = -1,6164
k = 0,3991
3. Xo = 50 g
Xt
= 13,02 gr
t
=
hari setahun
hari lama dekomposisi
t
= 365 = 4,05
90
-4,05 k = In 13,02
50
-4,05 k = In 0,2604
-4,05 k = -1,3455
k = 0,3322
Lampiran 3. Uji independent t test Dekomposisi serasah terdapat di lingkungan
dengan berbagai tingkat salinitas
Test Value = 0
T
Ktahun1
17,733
df
Sig. (2-tailed)
2
,003
Mean
Difference
2,71333
95% Confidence Interval
of the Difference
Lower
2,0550
Upper
3,3717
41
Universitas Sumatera Utara
Lampiran 4. Hasil analisis serasah Avicennia alba
Unsur Hara Karbon (C)
Hari
0 - 10 ppt
15,43
17,27
15,86
15 hari
60 hari
90 hari
Tingkat Salinitas
11 - 20 ppt
17,16
17,43
17,91
21 - 30 ppt
15,58
18,12
15,64
Unsur Hara Nitrogen
Hari
0 - 10 ppt
2,1
1,93
1,83
15 hari
60 hari
90 hari
Tingkat Salinitas
11 - 20 ppt
2,12
2,1
2,1
21 - 30 ppt
2,07
1,72
2,15
Unsur Hara Fosfor (P)
Hari
15 hari
60 hari
90 hari
Tingkat Salinitas
0 – 10 ppt
0,15
0,16
0,17
11 - 20 ppt
0,17
0,19
0,17
21 - 30 ppt
0,17
0,15
0,15
Rasio C/N
Hari
15 hari
60 hari
90 hari
Tingkat Salinitas
11 - 20 ppt
8,09
8,3
8,52
0 - 10 ppt
7,34
8,94
8,66
21 - 30 ppt
7,52
10,.53
7,27
42
Universitas Sumatera Utara
Lampiran 5. Jumlah organisme yang terdapat pada serasah Avicennia alba
Salinitas
Kantong
Hari ke-
Organisme
Jumlah
0-10 ppt
U1
15
Cacing
2
U2
15
Cacing dan siput
2
U3
15
Cacing
1
U1
15
Kepiting dan cacing
2
U2
15
Siput
1
U3
15
Cacing
4
U1
15
U2
15
Cacing
1
U3
15
Siput
1
U1
30
Cacing dan siput
2
U2
30
Kepiting
2
U3
30
Cacing
2
U1
30
Cacing
2
U2
30
Siput
1
U3
30
Cacing
3
U1
30
Kepiting
1
U2
30
Cacing
2
U3
30
Siput
1
U1
45
Kepiting
1
U2
45
Siput
2
U3
45
Cacing
3
U1
45
Siput
1
U2
45
Kepiting dan siput
3
U3
45
Cacing
2
U1
45
0
U2
45
0
11-20 ppt
21-30 ppt
0-10 ppt
11-20 ppt
21-30 ppt
0-10 ppt
11-20 ppt
21-30 ppt
0
43
Universitas Sumatera Utara
U3
45
Cacing
1
Lampiran 5. Lanjutan
Salinitas
11-20 ppt
21-30 ppt
0-10 ppt
11-20 ppt
21-30 ppt
0-10 ppt
11-20 ppt
21-30 ppt
Kantong
Hari ke-
Organisme
Jumlah
U1
60
Kepiting
2
U2
60
Siput
1
U3
60
cacing
1
U1
60
Cacing
2
U2
60
Cacing
3
U3
60
U1
60
U2
60
0
U3
60
0
U1
75
Kepiting
1
U2
75
Cacing
3
U3
75
U1
75
Siput
2
U2
75
Cacing
3
U3
75
Kepiting
1
U1
75
Kepiting
1
U2
75
U3
75
U1
90
U2
90
Kepiting
2
U3
90
Cacing
2
U1
90
Cacing
2
U2
90
Cacing
1
U3
90
Kepiting
1
U1
90
Cacing
1
U2
90
U3
90
0
cacing
2
0
0
Cacing
2
0
0
Cacing
1
44
Universitas Sumatera Utara
Lampiran 6. Hasil Uji independent t test Pada tingkat salinitas 0-10 – 11-20 ppt
Levene's Test for
Equality of
Variances
Unsur hara C
Unsur hara N
Unsur hara P
Unsur hara
CN
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
t-test for Equality of Means
95% Confidence Interval of
the Difference
Lower
Upper
F
Sig.
T
df
Sig. (2tailed)
Mean
Difference
Std. Error
Difference
3,430
0,138
-2,198
4
0,093
-1,31333
0,59742
-2,97204
0,34537
-2,198
2,608
0,129
-1,31333
0,59742
-3,38679
0,76013
-1,939
4
0,125
-0,15333
0,07909
-0,37293
0,06626
-1,939
2,029
0,190
-0,15333
0,07909
-0,48908
0,18241
-1,890
4
0,132
-0,01667
0,00882
-0,04115
0,00782
-1,890
3,920
0,133
-0,01667
0,00882
-0,04135
0,00802
0,020
4
0,985
0,01000
0,50871
-1,40241
1,42241
0,020
2,252
0,986
0,01000
0,50871
-1,95987
1,97987
5,503
0,308
6,727
0,079
0,609
0,060
45
Universitas Sumatera Utara
Lampiran 6. Lanjutan
Hasil Uji independent t test Pada tingkat salinitas 0-10 – 21-30 ppt
Levene's Test for
Equality of
Variances
Unsur har C
Unsur hara N
Unsur hara P
Unsur hara
CN
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
t-test for Equality of Means
95% Confidence Interval of
the Difference
Lower
Upper
F
Sig.
T
df
Sig. (2tailed)
Mean
Difference
Std. Error
Difference
10,132
0,033
1,049
4
0,353
0,58333
0,55602
-0,96042
2.12709
1,049
2,004
0,404
0,58333
0,55602
-1,80392
2,97059
-0,173
4
0,871
-0,02667
0,15377
-0,45359
0,40026
-0,173
3,265
0,873
-0,02667
0,15377
-0,49433
0,44100
0,378
4
0,725
0,00333
0,00882
-0,02115
0,02782
0,378
3,920
0,725
0,00333
0,00882
-0,02135
0,02802
-0,109
4
0,918
-0,12667
1,15785
-3,34137
3,08803
-0,109
2,846
0,920
-0,12667
1,15785
-3,92716
3,67382
1,486
0,308
3,477
0,290
0,609
0,136
46
Universitas Sumatera Utara
Lampiran 6. Lanjutan
Hasil Uji independent t test Pada tingkat salinitas 11-20 – 21-30 ppt
Levene's Test for
Equality of
Variances
Unsur hara C
Unsur hara N
Unsur hara P
Unsur hara
CN
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
t-test for Equality of Means
95% Confidence Interval of
the Difference
Lower
Upper
F
Sig.
T
df
Sig. (2tailed)
Mean
Difference
Std. Error
Difference
5,741
0,075
8,617
4
0,001
1,89667
0,22010
1,28557
2,50776
8,617
2,029
0,013
1,89667
0,22010
0,96235
2,83099
0,958
4
0,392
0,12667
0,13220
-0,24039
0,49372
0,958
2,010
0,439
0,12667
0,13220
-0,43940
0,69274
2,121
4
0,101
0,02000
0,00943
-0,00618
0,04618
2,121
4,000
0,101
0,02000
0,00943
-0,00618
0,04618
-0,130
4
0,903
-0,13667
1,05482
-3,06532
2,79198
-0,130
2,056
0,908
-0,13667
1,05482
-4,55842
4,28509
11,193
0,000
11,859
0,029
1,000
0,026
47
Universitas Sumatera Utara
38
Universitas Sumatera Utara
Lampiran 1. Bobot kering (g) sisa serasah Avicennia alba tiap ulangan pada
berbagai tingkat salinitas.
Salinitas
Ulangan
Lama masa dekomposisi
(hari)
30
45
60
0
15
75
90
U1
50
48.21
43.33
33.77
21.04
14.23
11.07
U2
50
48.13
42.92
U3
50
48
43.07
33.46
19.99
13.58
10.81
33.83
19.86
12.98
10.33
sub total
150
144.34
129.32
101.06
60.89
40.79
32.21
rata rata
50
48.11
43.11
33.69
20.30
13.60
10.74
U1
50
47.52
42.16
32.17
19.97
13
9.71
U2
U3
50
50
47.31
48.01
43.53
42.22
30.1
32.05
20.03
19.89
12.85
12.65
10.15
9.93
150
50
142.84
47.61
127.91
42.64
94.32
31.44
59.89
19.96
38.5
12.83
29.79
9.93
U1
50
48.67
44.2
34.18
22.43
15.55
12.48
U2
50
49.02
43.76
33.97
21.65
14.67
13.39
U3
50
48.88
43.87
33.76
21.77
14.92
13.18
Sub total
150
146.57
131.83
101.91
65.85
45.14
39.05
rata-rata
50
48.86
43.94
33.97
21.95
15.05
13.02
0-10 ppt
10-20 ppt
sub total
rata rata
20-30 ppt
39
Universitas Sumatera Utara
Lampiran 2. Perhitungan Laju Dekomposisi Metode Olson (1963):
In (Xt/Xo)
= -kt
Keterangan : X = Bobot kering serasah setelah periode pengamatan ke-t (g)
t
X
= Bobot serasah awal (g)
k
= laju dekomposisi serasah
e
= Bilangan logaritma natural (2,72)
t
= Periode pengamatan (hari)
0
1. Xo = 50 g
Xt
= 10,74 gr
t
=
hari setahun
hari lama dekomposisi
t
= 365 = 4,05
90
-4,05 k = In 10,74
50
-4,05 k = In 0,2148
-4,05 k = -1,5380
k = 0,3797
2. Xo = 50 g
Xt
= 9,93 gr
t
=
t
= 365 = 4,05
90
hari setahun
hari lama dekomposisi
-4,05 k = In 9,93
40
Universitas Sumatera Utara
50
Lampiran 2. Lanjutan
-4,05 k = In 0,1986
-4,05 k = -1,6164
k = 0,3991
3. Xo = 50 g
Xt
= 13,02 gr
t
=
hari setahun
hari lama dekomposisi
t
= 365 = 4,05
90
-4,05 k = In 13,02
50
-4,05 k = In 0,2604
-4,05 k = -1,3455
k = 0,3322
Lampiran 3. Uji independent t test Dekomposisi serasah terdapat di lingkungan
dengan berbagai tingkat salinitas
Test Value = 0
T
Ktahun1
17,733
df
Sig. (2-tailed)
2
,003
Mean
Difference
2,71333
95% Confidence Interval
of the Difference
Lower
2,0550
Upper
3,3717
41
Universitas Sumatera Utara
Lampiran 4. Hasil analisis serasah Avicennia alba
Unsur Hara Karbon (C)
Hari
0 - 10 ppt
15,43
17,27
15,86
15 hari
60 hari
90 hari
Tingkat Salinitas
11 - 20 ppt
17,16
17,43
17,91
21 - 30 ppt
15,58
18,12
15,64
Unsur Hara Nitrogen
Hari
0 - 10 ppt
2,1
1,93
1,83
15 hari
60 hari
90 hari
Tingkat Salinitas
11 - 20 ppt
2,12
2,1
2,1
21 - 30 ppt
2,07
1,72
2,15
Unsur Hara Fosfor (P)
Hari
15 hari
60 hari
90 hari
Tingkat Salinitas
0 – 10 ppt
0,15
0,16
0,17
11 - 20 ppt
0,17
0,19
0,17
21 - 30 ppt
0,17
0,15
0,15
Rasio C/N
Hari
15 hari
60 hari
90 hari
Tingkat Salinitas
11 - 20 ppt
8,09
8,3
8,52
0 - 10 ppt
7,34
8,94
8,66
21 - 30 ppt
7,52
10,.53
7,27
42
Universitas Sumatera Utara
Lampiran 5. Jumlah organisme yang terdapat pada serasah Avicennia alba
Salinitas
Kantong
Hari ke-
Organisme
Jumlah
0-10 ppt
U1
15
Cacing
2
U2
15
Cacing dan siput
2
U3
15
Cacing
1
U1
15
Kepiting dan cacing
2
U2
15
Siput
1
U3
15
Cacing
4
U1
15
U2
15
Cacing
1
U3
15
Siput
1
U1
30
Cacing dan siput
2
U2
30
Kepiting
2
U3
30
Cacing
2
U1
30
Cacing
2
U2
30
Siput
1
U3
30
Cacing
3
U1
30
Kepiting
1
U2
30
Cacing
2
U3
30
Siput
1
U1
45
Kepiting
1
U2
45
Siput
2
U3
45
Cacing
3
U1
45
Siput
1
U2
45
Kepiting dan siput
3
U3
45
Cacing
2
U1
45
0
U2
45
0
11-20 ppt
21-30 ppt
0-10 ppt
11-20 ppt
21-30 ppt
0-10 ppt
11-20 ppt
21-30 ppt
0
43
Universitas Sumatera Utara
U3
45
Cacing
1
Lampiran 5. Lanjutan
Salinitas
11-20 ppt
21-30 ppt
0-10 ppt
11-20 ppt
21-30 ppt
0-10 ppt
11-20 ppt
21-30 ppt
Kantong
Hari ke-
Organisme
Jumlah
U1
60
Kepiting
2
U2
60
Siput
1
U3
60
cacing
1
U1
60
Cacing
2
U2
60
Cacing
3
U3
60
U1
60
U2
60
0
U3
60
0
U1
75
Kepiting
1
U2
75
Cacing
3
U3
75
U1
75
Siput
2
U2
75
Cacing
3
U3
75
Kepiting
1
U1
75
Kepiting
1
U2
75
U3
75
U1
90
U2
90
Kepiting
2
U3
90
Cacing
2
U1
90
Cacing
2
U2
90
Cacing
1
U3
90
Kepiting
1
U1
90
Cacing
1
U2
90
U3
90
0
cacing
2
0
0
Cacing
2
0
0
Cacing
1
44
Universitas Sumatera Utara
Lampiran 6. Hasil Uji independent t test Pada tingkat salinitas 0-10 – 11-20 ppt
Levene's Test for
Equality of
Variances
Unsur hara C
Unsur hara N
Unsur hara P
Unsur hara
CN
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
t-test for Equality of Means
95% Confidence Interval of
the Difference
Lower
Upper
F
Sig.
T
df
Sig. (2tailed)
Mean
Difference
Std. Error
Difference
3,430
0,138
-2,198
4
0,093
-1,31333
0,59742
-2,97204
0,34537
-2,198
2,608
0,129
-1,31333
0,59742
-3,38679
0,76013
-1,939
4
0,125
-0,15333
0,07909
-0,37293
0,06626
-1,939
2,029
0,190
-0,15333
0,07909
-0,48908
0,18241
-1,890
4
0,132
-0,01667
0,00882
-0,04115
0,00782
-1,890
3,920
0,133
-0,01667
0,00882
-0,04135
0,00802
0,020
4
0,985
0,01000
0,50871
-1,40241
1,42241
0,020
2,252
0,986
0,01000
0,50871
-1,95987
1,97987
5,503
0,308
6,727
0,079
0,609
0,060
45
Universitas Sumatera Utara
Lampiran 6. Lanjutan
Hasil Uji independent t test Pada tingkat salinitas 0-10 – 21-30 ppt
Levene's Test for
Equality of
Variances
Unsur har C
Unsur hara N
Unsur hara P
Unsur hara
CN
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
t-test for Equality of Means
95% Confidence Interval of
the Difference
Lower
Upper
F
Sig.
T
df
Sig. (2tailed)
Mean
Difference
Std. Error
Difference
10,132
0,033
1,049
4
0,353
0,58333
0,55602
-0,96042
2.12709
1,049
2,004
0,404
0,58333
0,55602
-1,80392
2,97059
-0,173
4
0,871
-0,02667
0,15377
-0,45359
0,40026
-0,173
3,265
0,873
-0,02667
0,15377
-0,49433
0,44100
0,378
4
0,725
0,00333
0,00882
-0,02115
0,02782
0,378
3,920
0,725
0,00333
0,00882
-0,02135
0,02802
-0,109
4
0,918
-0,12667
1,15785
-3,34137
3,08803
-0,109
2,846
0,920
-0,12667
1,15785
-3,92716
3,67382
1,486
0,308
3,477
0,290
0,609
0,136
46
Universitas Sumatera Utara
Lampiran 6. Lanjutan
Hasil Uji independent t test Pada tingkat salinitas 11-20 – 21-30 ppt
Levene's Test for
Equality of
Variances
Unsur hara C
Unsur hara N
Unsur hara P
Unsur hara
CN
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
t-test for Equality of Means
95% Confidence Interval of
the Difference
Lower
Upper
F
Sig.
T
df
Sig. (2tailed)
Mean
Difference
Std. Error
Difference
5,741
0,075
8,617
4
0,001
1,89667
0,22010
1,28557
2,50776
8,617
2,029
0,013
1,89667
0,22010
0,96235
2,83099
0,958
4
0,392
0,12667
0,13220
-0,24039
0,49372
0,958
2,010
0,439
0,12667
0,13220
-0,43940
0,69274
2,121
4
0,101
0,02000
0,00943
-0,00618
0,04618
2,121
4,000
0,101
0,02000
0,00943
-0,00618
0,04618
-0,130
4
0,903
-0,13667
1,05482
-3,06532
2,79198
-0,130
2,056
0,908
-0,13667
1,05482
-4,55842
4,28509
11,193
0,000
11,859
0,029
1,000
0,026
47
Universitas Sumatera Utara