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KEANEKARAGAMAN JENIS DAN PEMANFAATAN EUPHORBIACEAE DI CAGAR ALAM DUNGUS IWUL BOGOR JAWA BARAT Ersha Farah Dea; J Jumari; Erry Wiryani; Laode Alhamd
Jurnal Akademika Biologi Vol. 5 No. 4 Oktober 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Euphorbiaceae is a potential plant and has a wide distribution. Nature Reserve Dungus Iwul is one area that has many different types of Euphorbiaceae plants. The purpose of this study was to determine the diversity, density and distribution as well as reviewing the use of Euphorbiaceae in Nature Reserve Dungus Iwul, Wirajaya Village, District Jasinga, Bogor, West Java. Fieldwork was conducted in May 2016. Observations were made on a sample plot with an area of 1 Ha include: the name of the species and number of individuals, DBA measurement and measurement of environmental parameters. Utilization survey conducted by interview and literature study. The results showed that the observation plots was found 17 species of Euphorbiaceae. Number of individuals based habitus were 8 individual trees, 31 individual poles, 131 saplings and 192 seedlings. Euphorbiaceae distributed by 70% in the observation plot. Euphorbiaceae used for producing animal and human feed, building materials, firewood, dyes, ornamental plants, traditional medicine and others.Keywords: Species diversity, species density, Euhphorbiaceae

ECOLOGICAL STUDY OF THE ARROWROOT (Tacca leontopetaloides (L.) Kuntze) AT KARIMUNJAWA NATIONAL PARK, CENTRAL JAVA Laode Alhamd
REINWARDTIA Vol 17, No 2 (2018): Vol.17 No.2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v17i2.3513

ALHAMD, L. 2018. Ecological study of the arrowroot (Tacca leontopetaloides (L.) Kuntze) at Karimunjawa National Park, Central Java. Reinwardtia 17(2): 87–96. — An ecological study of arrowroot (Tacca leontopetaloides (L.) Kuntze) at Karimunjawa National Park (Karimunjawa NP), Central Java, was conducted at six islands, namely Kumbang, Nyamuk, Katang, Seruni, Cendikia and Sintok islands. A sampling plot of 10 × 50 m2 was established on each island. The results showed that the arrowroot population in Katang island was greater than those of other islands, with a density of 0.74 m-2, a frequency of 0.8 and an abundance of 23.1. The arrowroot density of all samplings ranged from 137 to 370 per 0.05 ha. The occurrence of 30 species surrounding arrowroot was observed and only five species, Sida acuta (Chi-square count (cs)>Chi-square table cs=5.71, P<0.05) and Scaevola taccada (cs=7.94, P<0.01) in Kumbang island, Imperata cylindrica (cs=18.81, P<0.01) in Nyamuk island, Morinda citrifolia (cs=9.47, P<0.01) in Sintok island, and Carica papaya (cs=3.95, P<0.05) in Cendikia island, had significant associations with arrowroot. For habitat characteristics, soil textures were dominated by sandy types ranging from 90 to 95%, whilst other soil properties such as pH, N, P, K, Mg and CEC did not significantly affect the presence of arrowroot.

ESTIMASI BIOMASA DAN KARBON TERSIMPAN PADA Pinus merkusii Jungh. & de Vriese DI HUTAN PINUS GN. BUNDER, TN. GN. HALIMUN SALAK Ruddy Polosakan; Laode Alhamd; Joeni S. Rahajoe
BERITA BIOLOGI Vol 13, No 2 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i2.684

A study on the biomass and carbon stock estimation of Pinus merkusii Jungh. & de Vriese plantation has been conducted on 17-years and 30-years old pine forest in Gunung Bunder, Halimun Salak National Park. The method used was the allometric with non destructive technique. The results showed that pine trees density of 30-years old pine was 542 trees ha-1 ; the basal area (BA) was 26.8 m2 ha-1; trees density of 17-years old pine was 1,398 tree ha-1 with BA was 36.2 m2 ha-1. The estimation of biomass, carbon sinks and CO2 sequestration of 30-years old pine were 203.7, 96.5 and 354.2 ton ha-1, respectively. Meanwhile, the estimation of biomass, carbon sinks and CO2 sequestration of 17-years old pine were 188.3, 86.8 and 318.5 ton ha-1, respectively. Value of the environmental services derived from the CO2 absorption for the development of a pine forest ranged from US.$ 1,847.09 to 2,054.22, at two ages of pine trees.

ECOLOGICAL STUDY OF THE ARROWROOT (Tacca leontopetaloides (L.) Kuntze) AT KARIMUNJAWA NATIONAL PARK, CENTRAL JAVA Laode Alhamd
REINWARDTIA Vol 17, No 2 (2018): Vol.17 No.2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.2018.3513

ALHAMD, L. 2018. Ecological study of the arrowroot (Tacca leontopetaloides (L.) Kuntze) at Karimunjawa National Park, Central Java. Reinwardtia 17(2): 87–96. — An ecological study of arrowroot (Tacca leontopetaloides (L.) Kuntze) at Karimunjawa National Park (Karimunjawa NP), Central Java, was conducted at six islands, namely Kumbang, Nyamuk, Katang, Seruni, Cendikia and Sintok islands. A sampling plot of 10 × 50 m2 was established on each island. The results showed that the arrowroot population in Katang island was greater than those of other islands, with a density of 0.74 m-2, a frequency of 0.8 and an abundance of 23.1. The arrowroot density of all samplings ranged from 137 to 370 per 0.05 ha. The occurrence of 30 species surrounding arrowroot was observed and only five species, Sida acuta (Chi-square count (cs)>Chi-square table cs=5.71, P<0.05) and Scaevola taccada (cs=7.94, P<0.01) in Kumbang island, Imperata cylindrica (cs=18.81, P<0.01) in Nyamuk island, Morinda citrifolia (cs=9.47, P<0.01) in Sintok island, and Carica papaya (cs=3.95, P<0.05) in Cendikia island, had significant associations with arrowroot. For habitat characteristics, soil textures were dominated by sandy types ranging from 90 to 95%, whilst other soil properties such as pH, N, P, K, Mg and CEC did not significantly affect the presence of arrowroot.

ECOLOGICAL STUDY OF THE ARROWROOT (Tacca leontopetaloides (L.) Kuntze) AT KARIMUNJAWA NATIONAL PARK, CENTRAL JAVA Laode Alhamd
Reinwardtia Vol. 17 No. 2 (2018)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v17i2.3513

ALHAMD, L. 2018. Ecological study of the arrowroot (Tacca leontopetaloides (L.) Kuntze) at Karimunjawa National Park, Central Java. Reinwardtia 17(2): 87–96. — An ecological study of arrowroot (Tacca leontopetaloides (L.) Kuntze) at Karimunjawa National Park (Karimunjawa NP), Central Java, was conducted at six islands, namely Kumbang, Nyamuk, Katang, Seruni, Cendikia and Sintok islands. A sampling plot of 10 × 50 m2 was established on each island. The results showed that the arrowroot population in Katang island was greater than those of other islands, with a density of 0.74 m-2, a frequency of 0.8 and an abundance of 23.1. The arrowroot density of all samplings ranged from 137 to 370 per 0.05 ha. The occurrence of 30 species surrounding arrowroot was observed and only five species, Sida acuta (Chi-square count (cs)>Chi-square table cs=5.71, P

ECOLOGICAL STUDY OF THE ARROWROOT (Tacca leontopetaloides (L.) Kuntze) AT KARIMUNJAWA NATIONAL PARK, CENTRAL JAVA Laode Alhamd
Reinwardtia Vol. 17 No. 2 (2018)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v17i2.3513

ALHAMD, L. 2018. Ecological study of the arrowroot (Tacca leontopetaloides (L.) Kuntze) at Karimunjawa National Park, Central Java. Reinwardtia 17(2): 87–96. — An ecological study of arrowroot (Tacca leontopetaloides (L.) Kuntze) at Karimunjawa National Park (Karimunjawa NP), Central Java, was conducted at six islands, namely Kumbang, Nyamuk, Katang, Seruni, Cendikia and Sintok islands. A sampling plot of 10 × 50 m2 was established on each island. The results showed that the arrowroot population in Katang island was greater than those of other islands, with a density of 0.74 m-2, a frequency of 0.8 and an abundance of 23.1. The arrowroot density of all samplings ranged from 137 to 370 per 0.05 ha. The occurrence of 30 species surrounding arrowroot was observed and only five species, Sida acuta (Chi-square count (cs)>Chi-square table cs=5.71, P

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