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Siagian, Reinhard

Komposisi dan struktur komunitas tumbuhan bawah di areal kebakaran Gunung Masigit dan studi awal regenerasi alam di areal kebakaran Gunung Masigit, Taman Nasional Gunung Gede Pangrango

"ABSTRAK

Penelitian bertujuan untuk mengetahui struktur dan komposisi komunitas jenis tumbuhan bawah di areal Taman Nasional Gunung Gede Pangrango.° Penelitian dilakukan di tiga lokasi yaitu lereng bawah, lereng atas, dan punggung bukit.° Pengumpulan data dilakukan dari bulan April hingga September 1999.

Pencacahan flora menggunakan metode berpetak dengan 2 buah transek sepanjang 275 m. Pada setiap transek dibuat 25 petak berukuran lx1 m dengan jarak 10 m antar petak.

Hasil pencacahan tumbuhan bawah pada 150 petak lx1 m2 di tiga lokasi penelitian Gunung Masigit mencatat 43 jenis tumbuhan yang tergolong ke dalam 39 marga dan 35 suku, dengan jenis-jenis utama Dipteris conjugata, Blechnum finlaysonianum, Impatiens javensis, tlrena lobata, Reds sp, Elatostemma sp, Smilax zeylanica, Schima wallrchrr, Phaius sp, Vitis adnanta, Dendrochyllum sp, Cyperus sp.

Sebaran jenis tumbuhan bawah di lokasi penelitian, khususnya di Lereng Bawah dan Punggung Bukit, sangat heterogen. Penyebaran jenisjenis tertentu umumnya tidak terkait dengan sebaran jenis-jenis iainnya. Komunitas tumbuhan bawah di Lereng Bawah dan Lereng Atas dapat disebut sebagai komunitas Dipteris conjugate, sedangkan di Punggung Bukit disebut asosiasi D.conjugata-B.fnlaysonianum. Karakteristik tumbuhan bawah di lokasi penelitian menunjukkan bahwa komunitas tumbuhan di sana telah mengalami gangguan. Kadar air lapangan yang dimiliki jenis-jenis dominan seperti Dipteris conjugata dan Blechnum finlaysonianum, yang hanya sekitar 30 %, memiliki resiko.tjnggi terhadap bahaya kebakaran.

ABSTRACT

Composition and Structures Community Lowland Fires in Gunung Masigit and Preliminary Study of Natural Regeneration Forest Fire Gunung Masigit, G. Gede-Pangrango National ParkGunung Gede Pangrango National Park, is one of the Long-term Ecological Research Site in Indonesia. In the late 1997, the fires have burnt and destroyed nearly 300 ha forest in this park . Of nine location of hot spots recognized G.Masigit was the largest burnt area with the tot& of 250 ha . Undergrowth vegetation got the most severe impacts. Almost undergrowth vegetation in various location in study site were totally burnt. However, with in three months following burning new seedlings such as Omalanthus populneus, Macaranga tanarius , Trema orientalis appeared in the forest floor.°

Abdulhadi et al. (1999) reported that those species were found as the component of seed bank in a permanent plot of this forest. Thus, it is believed that those seedlings might be recruited from seed bank or seed rain.

The objective of the research is to find out the composition and structure of undergrowth forest a community after forest fire in Gunung Masigit, G. Gede-Pangrango National Park.

Data collection were carried out between April and September 1999 at three areas, i.e. upper slope, lower slope, ridge. Four transects of 275 m were established within each site; each two transects established in burnt and unburnt forest. A long the each 275 m transect 25 plots of l x1 m were established with the interval of 10 m.

A total of 43 species belong to 39 genera and 35 families were recorded within 150 plots of unburnt sites. The dominant species of the unburnt sites were Dipteris conjugata, Blechnum fnlaysonianum, Impatiens javensis, Urena lobalata, Pteris sp, Elatostemma sp, Smilax zeylanica, Schima wallichii, Phaius sp, Vitis adnanta, Dendrochy1/um sp, Cyperus sp.

Based on their important value indices (I V I) the plant communities in lower and upper slopes were called Dipteris conjugata community, while in ridge site was an association of D_conjugata and Blechnum fin/aysonianum. The composition of undergrowth forest community observed during this study clearly indicated that G. Masigit has experienced some kind of disturbance before the fire in the late 1997.

Field water capacities of the dominant plants of the undergrowth forest were about 30 %. It is believed that this condition makes the forest is under high risk of fires.

The species richness of born sites was higher than in unburnt sites due to occurrence of the secondary species such as Melastoma balatrichum and Omalanthus populneus, that were not found in the unburnt site. There were 38 species found on the ridge, as the richest site, followed by upper slope 33 species , and the lower slope 21 species. Based on the life form, the undergrowth species in burning area can be classified to 18 species of trees, 6 species of shrubs, 9 species of lianas, 15 species of herbs, and 5 species of ferns.

The undergrowth forest community in burnt sites was dominated by herbs and ferns indicated that the community was still in an early succession. The LVI of plant communities in burnt site showed that the lower slope was the association of Pteris sp-Flatostemma sp., the upper slope was a community of Cyperus sp, and the ridge was the association of Cyperus sp-Pteris sp.

2000

T-Pdf

UI - Tesis Membership Universitas Indonesia Library

Fahma Wijayanti

Komunitas fauna Gua Petruk dan Gua Jatijajar Kabupaten Kebumen Tengah = Fauna community of Petruk and Jatijajar cave, Kebumen Regency, Central Java

"Limestone cave is an unique ecosystem with having characteristics on enclosed space, dark, stable temperature, moist, air sirculation and being inhabited by specific flora and fauna. A limestone cave ecosystem is fragile and unrenewable for the process of its formation needs millions of years (Bullock,1965:60; Whitten et al. 1996: 542). Petruk and Jatijajar limestone caves are located at the vicinity of South Gombong Crust ,Central Java. Being potential as tourist attractions, the two caves are made used by local government tourist agency of Kebumen Regency. To create a proper managament system which saveguard the ecological function of the cave as well as the related ecological process, studies on the biodiversity and ecology are needed.

The objectives of this study are primarily to understand : (1). The level of abundance of bats (2). The different of the physical environment which influence the bats populations (3). The diversity of fauna (4). The preference roosting place the bats at Petruk and Jatijajar cave. This study is conducted at Petruk cave and Jatijajar cave which are located at Ayah subdistric , Kebumen regency , Central Java in July - September 1999.

The estimation of bat populations is made by counting the total number of induvidual bats when they left the cave in the evening and roosting the roof of cave during the days. For physical environment studies of the cave, the temperature, humidity and the light intensity at every zone of the cave were measured. Avertebrata and water fauna diversity were calculated by square method (murray 1991: 48), and the vertebrate diversity by line transek method (Wardoyo: 1986:11). The habitat preference of bat's roosting was identified using several criteria including the distance of the roosting place from the cave enterance, temperature, humidity and light intensity of the roosting place of each bats colony.

To compare the physical data of the similar zone the ANOVA test was used at the level of 95 % signiticant (Walpole 1987: 383).The fauna diversity index was calculated by the Shanon - Whiner index (Cox, 1997:195). The similarity of those population were measured by Sorensen formula (Cox, 1997:197 ).The map for roosting habitat preference is made based on available map has been provided by Finspac' (1997), while for Jatijajar cave has been prepared by tourism agency of the Kebumen local goverment 1997.

Conclusions drawn from this study were : 1) The bat population of Petruk cave during the research was approximately 144.00 at 661,34 and of Jatijajar cave around 2.874 + 179,2. 2) The physical environment of Petruk cave was warmer, with a high humidity level , and darker than the Jatijajar cave. 3) The land fauna diversity of Petruk cave was higher than that of Jatijajar cave. However those caves have similarities concerning the water fauna diversity. 4) At petruk cave 8 roosting places in habited by 6 species of bat' s namely : Rousettus amplexicaudatus, Hipposideros bicolor,Hipposideros diadema, Myotis horsfieldii, Tadarida plicata and Rhinolopus luctus. At Jatijajar cave there are 6 roosting places inhabited by 3 species of bat , namely: Rousettus amplexicaudatus, Hipposideros bicolor and Rhinoilopus luctus. At both of cave the R. amplexicaudatus prefer red to have a roosting place somewhere around the entrance due to sufficient light.

However R. luctus preferred to have a roosting place at the far end of the cave where the level of humidity is high and there is no light at all. The other species : H. bicofon H. diadema ,M, horsfieldii, and T. plicata preferred to have a roosting place at the medle of the cave which little light is available and the temperature and humidity are fluctuative."

Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2001

T9979

UI - Tesis Membership Universitas Indonesia Library

Siti Dian Rosadi

Potensi karbon dan valuasi ekonomi mangrove di Kecamatan Gerung, Kabupaten Lombok Barat = Carbon potential and mangrove economic valuation in Gerung District, West Lombok Regency

"ABSTRAK

Telah dilakukan penelitian tentang potensi karbon dan valuasi ekonomi mangrove di Kecamatan Gerung, Kabupaten Lombok Barat. Tujuan pertama penelitian yaitu untuk menghitung dan menganalisis potensi penyimpanan dan penyerapan karbon mangrove di Kecamatan Gerung serta menentukan tumbuhan potensial yang memiliki kemampuan tertinggi dalam menyimpan dan menyerap karbon. Pengambilan sampel karbon dilakukan pada 14 stasiun pengamatan. Data karbon diestimasi dari potensi biomassa atas tanah, bawah tanah, tumbuhan bawah dan karbon organik tanah. Hasil analisis kandungan karbon diperoleh nilai biomassa sebesar 401,15 ton/ha, stok karbon sebesar 186,05 ton/ha dan serapan karbon sebesar 682,81 ton/ha. Spesies yang memiliki poteni penyimpanan dan penyerapan karbon tertinggi adalah S. alba. Tujuan lain dilakukannya penelitian yaitu untuk menghitung dan menganalisis nilai ekonomi mangrove termasuk nilai ekonomi yang diperoleh dari potensi karbon serta untuk mengetahui nilai ekonomi terbesar yang dihasilkan ekosistem mangrove. Pengumpulan data dilakukan dengan wawancara, observasi dan studi literatur. Data dianalisis secara kuantitatif untuk menjelaskan nilai ekonomi mangrove dan dianalisis secara deskriptif untuk menggambarkan kegiatan sosial ekonomi masyarakat. Nilai ekonomi yang diperoleh dari pemanfaatan langsung mangrove mencapai Rp. 675.140.000/tahun, dari manfaat tidak langsung mencapai Rp. 33.710.361.020/tahun, dari manfaat pilihan sebesar Rp. 78.120.000/tahun, dan dari manfaat eksistensi sebesar Rp. 124.000.000/tahun. Nilai ekonomi total yang diperoleh dari mangrove Kecamatan Gerung pada tahun 2018 yaitu sebesar Rp. 34.587.621.020/tahun (2.461.839 US$/tahun). Nilai ekonomi terbesar yang dihasilkan ekosistem mangrove diperoleh dari manfaat tidak langsung mangrove terutama potensi karbon.

Research regarding carbon potential and economic valuation of mangroves in Gerung District, West Lombok Regency has been conducted. This research was aimed to calculate and analyze carbon storage and absorption of mangroves in Gerung District and to determine potential plants that have the ability to store and absorb carbon. Carbon sampling was carried out on 14 observation stations. Carbon data is estimated from potential biomass on land, underground, understorey and soil organic carbon. The results of the analysis of the carbon content of the mangrove ecosystem in Gerung Subdistrict, obtained a biomass value of 401.15 tons/ha, a carbon stock of 186.05 tons/ha and carbon absorption of 682.81 tons/ha. The species that has the highest carbon storage and absorption potential is S. alba. The purposes of this research were to calculate and analyze economic value from mangrove ecosystem and to find out the largest economic value produced by mangroves. Data collection is done through interviews, observation and literature studies. Data were analyzed quantitatively to explain the economic value of mangroves and analyzed descriptively to describe socio-economic activities of the community. The economic value obtained from direct use of mangroves reaches IDR. 2,565,140,000/year, from indirect benefits with a value IDR. 33,710,361,020/year, option economic value reaching IDR. 78,120,000/year and from the existence benefits were IDR. 124,000,000/year. The total economic of mangroves in Gerung District in 2018 were IDR. 36,477,621,020/year (2,492,826 US$/year). The biggest economic value produced by mangrove ecosystems is derived from the indirect benefits of mangroves, especially carbon potential.

Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2018

T52416

UI - Tesis Membership Universitas Indonesia Library

Yustrida Maisa

Konservasi ex-situ Rusa Timor (Cervus timorensis) di kampus Universitas Indonesia Depok = Ex-situ conservation of Timor Deer (Cervus timorensis) at the Universitas Indonesia

"Telah dilakukan studi habitat konservasi ex-situ berupa penangkaran rusa timor di Universitas Indonesia (UI). Tujuan dari studi ini adalah untuk meneliti habitat rusa timor di UI berupa aspek fisik dan biologi rusa berdasarkan PP. No 7 Tahun 1999 dan PP No. 8 Tahun 1999. Metode yang digunakan adalah metode observasi, kuesioner dan membandingkannya dengan kawasan penangkaran Ranca Upas, Ciwidey. Hasil yang didapatkan adalah kondisi kawasan penangkaran rusa timor di UI belum memenuhi standar kawasan penangkaran. Jumlah populasi seharusnya 1 ha hanya untuk 10 ekor saat ini hidup 36 ekor. Rasio jantan : betina 1:4 di UI terdapat 11:16. Standar kesehatan kawasan belum memadai, tidak aman, tidak nyaman, serta tidak ada tenaga ahli dalam administrasi dan kesehatan. Universitas Indonesia harus memperbaiki fisik habitat dan sistem administrasi pengelolaan dan perlu menunjuk ahli pada bidang konservasi dan kesehatan. Pelaksanaan konservasi ex-situ berupa penangkaran harus memperhatikan ekosistem berupa daya dukung lingkungan, kontrol populasi, asupan makanan, naungan dan tempat kawin.

Habitat study has been conducted at ex-situ conservation (captive breeding) of timor deer (Cervus timorensis) in Campus Universitas Indonesia (UI). The purpose of this study is to investigate whether timor deer habitat in UI based on physical and biological aspects of standardized deer habitat in captive breeding according to government rules PP. No 7 /1999 and PP No. 8 /1999. The methods used are habitat observation, and questionnaire, then the result is compared to the other timor deer captive breeding area, Ranca Upas, Ciwidey. Based on observations of deer habitat in UI, the physical conditions and maintenance are not qualified as a captive breeding area. The home range area for 1 ha is only for 10 heads, but at UI there are 36 heads; the sex ratio male:female 1:4 but in the UI field 11:16. The UI field is unsafe and uncomfortable, and the animal health standard is low and it has no expert hired for administrative and medical care. Universitas Indonesia should improve the habitat, need experts for administrative work such as labeling, certification, and listing on the book of pedigree (studbook) and tagging, and for genetic diversity preservation. The implementation of the ex-situ conservation must consider the ecosystem, carrying capacity, population control, food supply, shelter, and breeding."

Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2013

T31333

UI - Tesis Membership Universitas Indonesia Library

Dwi Yuliati

Evaluasi penerapan sistem jaminan mutu dan keamanan hasil perikanan tangkap tuna (Thunnus spp.) di PPN Palabuhanratu = Evaluation of the application system of quality assurance and safety on tuna fisheries (Thunnus spp.) in the Palabuhanratu fishing port

"Ekspor ikan tuna mengalami peningkatan pada periode lima tahun terakhir, sehingga proses penanganan ikan perlu mendapat perhatian serius. Dalam hal ini perlu dilakukan penelitian mengenai penerapan sistem jaminan mutu dan keamanan hasil perikanan tangkap Tuna (Thunnus spp.) di atas kapal dan tempat pendaratan ikan. Tujuan penelitian ini adalah untuk mengetahui penerapan sistem jaminan mutu dan keamanan hasil perikanan tangkap tuna, menganalisis mutu tuna di atas kapal sampai tempat pendaratan ikan, dan menentukan alternatif pelaksanaan jaminan mutu dan keamanan hasil perikanan tangkap tuna di atas kapal dan tempat pendaratan ikan di PPN Palabuhanratu. Data diperoleh dari 19 kapal tonda dan dianalisis secara deskriptif dan dengan proses hierarki analisis (PHA).

Dari penelitian ini diketahui bahwa penerapan sistem jaminan mutu dan keamanan hasil perikanan tangkap tuna di atas kapal dan tempat pendaratan ikan sudah cukup baik. Hal ini diketahui dari kondisi kelayakan dasar kapal tonda yang sudah cukup dekat dari standar namun masih perlu penyempurnaan (4≤ Y < 8) dan kelayakan dasar pada tempat pendaratan ikan menunjukkan kondisi yang cukup layak dengan nilai C (cukup). Hasil analisis deskriptif menunjukkan bahwa ikan tuna hasil tangkapan menunjukkan mutu yang baik, dengan suhu rata-rata sebesar 1,52oC (dibawah 4,4oC) dan nilai organoleptik 8,67 (di atas 7). Process (AHP) from 19 Trolling Lines.

Based on this research, it is known that the application of quality assurance and safety of tuna fisheries on the boat and the landing sites has been good enough. It is known from the basic eligibility requirements of the trolling line have been fairly close to the standard but still need improvement (4 ≤ Y < 8) and the basic eligibility requirements of the landing sites indicate a fairly decent condition with a value of C (enough). The status of tuna caught indicated that good quality with average temperature of 1.52°C (4.4°C below) and the organoleptic value of 8.67 (above 7).
From the results of AHP, it is known that the priority to perform quality assurance and safety on tuna fisheries in the trolling line is availability of ice in the boat (20,1%), deck (15,7%), fish handling equipment in the boat (13,3%), availability of fuel (11%) and availability of fresh water in the boat (7,9%). The priority to perform quality assurance and safety on tuna fisheries in the port is fish handling equipment (32,4%), availability of ice (12,9%), floor (12,4), toilet (9,4%) and fishing port (8,1%)."

Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2013

T32752

UI - Tesis Membership Universitas Indonesia Library

Rahmah

Vegetasi hutan pamah di zona inti bagian timur Taman Nasional Bukit Duabelas, Jambi = Lowland forest vegetation in the eastern part of the core zone of the Bukit Duabelas National Park, Jambi / Rahmah

"ABSTRAK

Analisis komposisi, struktur, dan regenerasi pohon hutan pamah di zona inti

bagian timur Taman Nasional Bukit Duabelas, Jambi dilakukan pada bulan

Oktober hingga November 2012. Pengambilan data dilakukan pada plot seluas

satu hektar yang diletakkan di daerah berbukit. Sebanyak 100 petak masingmasing

berukuran 10 m x 10 m digunakan untuk memperoleh data tingkat pohon,

dan menyarang di dalamnya plot berukuran 5 m x 5 m dan 1 m x 1 m untuk

pengamatan data tingkat belta dan semai. Tercatat 414 pohon dengan diameter

setinggi dada (DSD) ≥ 10 cm, yang mewakili 113 spesies dari 38 keluarga,

dengan Luas area dasar (LAD) keseluruhan 25,71 m2 dan indeks keanekaragaman

Shannon - Wiener sebesar 4,29. Sebanyak 282 individu tercatat mewakili 88

spesies dari 34 keluarga pada tingkat belta dan 222 individu yang mewakili 67

spesies dari 32 keluarga pada tingkat semai. Spesies yang paling dominan

berdasarkan Nilai Kepentingan (NK) pada tingkat pohon adalah Prunus arborea

dengan NK sebesar 19,19%. Ficus fistulosa merupakan spesies pohon dengan

kerapatan tertinggi (24 pohon/ha). Kerapatan tertinggi tingkat semai ditempati

oleh Rinorea anguifera (24 pohon/ha) dan kerapatan tertinggi tingkat belta

ditempati oleh Ficus fistulosa (15 pohon/ha). Moraceae dengan NK sebesar

34,05% merupakan famili terpenting dalam plot penelitian pada tingkat pohon,

sementara Violaceae dan Burseraceae dengan masing-masing NK sebesar 28,31%

dan 25,67% menjadi famili terpenting pada tingkat semai dan belta. Sebanyak 71

spesies atau 62,8% dari total spesies pohon beregenerasi di dalam plot penelitian.

Berdasarkan kerapatan pada tingkat semai, belta, dan pohon, spesies-spesies dari

famili Euphorbiaceae menunjukkan kemampuan regenerasi yang baik dan

diharapkan menjadi famili yang dominan di masa depan pada plot penelitian.

Sebanyak 61 spesies terdaftar dalam checklist Sumatra dan salah satunya

endemik, yaitu Baccaurea dulcis. Berdasarkan Redlist IUCN, Shorea leprosula

memiliki status konservasi Endangered, Aquilaria malaccensis memiliki status

konservasi Vulnerable, dan 12 spesies lain memiliki status konservasi Low Risk.

ABSTRACT

Analysis of the composition, structure, and tree regeneration of the lowland forest

in the eastern part of the core zone of the Bukit Duabelas National Park, Jambi

was conducted in October and November 2012. The study was carried out on a

one-hectare plot laid out on a slope of a lowland hill forest. A total of 100

quadrats of 10 m x 10 m each was used to obtain data trees, and plots measuring 5

m x 5 m and 1 m x 1 m each were nestled in sapling quadrates to secure data of

saplings and seedlings. We recorded 414 trees with diameter at breast height

(DBH) ≥ 10 cm, representing 113 species of 38 families, with the total basal area

(BA) of 25.71 m2 and Shannon--Wiener diversity index of 4,29. A total of 282

individuals were recorded representing 88 species of 34 families at the sapling

stage and 222 individuals of seedlings representing 67 species of 32 families. The

prevalent species of tree was Prunus arborea with Importance Value (IV) of

19.2%. Ficus fistulosa was the tree species with the highest density (24 trees/ha).

The highest density of seedlings was Rinorea anguifera (24 trees/ha) and the

highest density of saplings was Ficus fistulosa (15 trees/ha). Moraceae with IV

34,05% was dominant in the study site at tree stage, while Violaceae and

Burseraceae with each IV 28.31% and 25.67% were dominant at seedlings and

saplings stage. A total of 71 species or 62.8% of all tree species were

regenerating in the plot. Based on the density of seedlings, saplings and trees, the

species of Euphorbiaceae showed a good regenerating capability and expected to

be the dominant family in the future in the area. A total of 61 species are

registered in the Sumatra checklist and one of them is endemic, which was

Baccaurea dulcis. Following the IUCN redlist we categorized Shorea leprosula

as an endangered species, Aquilaria malaccensis as a vulnerable species, and 12

others as species with low risk."

2013

T34982

UI - Tesis Membership Universitas Indonesia Library

Azwar Anas

Studi fitososiologi hutan pamah di zona inti bagian tengah Taman Nasional Bukit Duabelas, Jambi = Phytosociology study of lowland forest in the middle section of the core zone of the Bukit Duabelas National Park, Jambi / Azwar Anas

"ABSTRAK

Penelitian mengenai Komposisi dan struktur serta regenerasi pohon dilakukan di Zona inti bagian tengah Taman Nasional Bukit Duabelas, Jambi. Penelitian menggunakan metode petak dengan pencuplikan pada plot seluas 1 hektare yang dibagi dalam 100 subpetak berukuran 10 m x 10 m untuk pencacahan pohon. Petak 5 m x 5 m dan 1 m x 1 m disarangkan dalam petak tersebut untuk pencacahan belta dan semai. Tercatat 540 individu pohon yang terdiri atas 89 spesies dari 36 famili dengan total luas area dasar 30,837 m2 dan nilai Indeks Keragaman (H’) sebesar 3,97. Dacroydes rostrata tercatat sebagai spesies dengan NK tertinggi (15,80%) diikuti oleh Shorea leprosula (15,58% ) dan Hydnocarpus sp. (14,91%). Shorea leprosula merupakan spesies yang memiliki luas area dasar tertinggi dengan nilai 2,829 m2 atau 9,17% dari total keseluruhan. Famili yang memiliki nilai NK tertinggi adalah Burseraceae (31,60) dan Dipterocarpaceae (28,89), sedangkan famili dengan jumlah spesies terbanyak tercatat pada Lauraceae (6 spesies). Terdapat 9 spesies yang masuk dalam kategori Red List IUCN, 2 di antaranya masuk dalam kategori Critically endangered (Parashorea lucida) dan Endangered (Shorea leprosula) serta 7 lainnya masuk dalam kategori Low risk. Pada tingkat semai tercatat 251 individu yang diwakili oleh 73 spesies dari 31 famili. Pada tingkat belta tercatat 305 individu yang terdiri dari 73 spesies dari 30 famili. Di antara 10 spesies pohon yang memiliki kerapatan tertinggi, terdapat 6 spesies yang memiliki sebaran anakan lengkap di tingkat belta dan semai yaitu Hydnocarpus sp., Antidesma neurocarpum, Shorea leprosula, Mussaenda frondosa, Prunus grisea dan Microcos crassifolia, tiga spesies hanya memiliki sebaran anakan di tingkat belta yaitu Dacryodes rostrata, Dacryodes rugosa dan Symplocos sp., dan satu spesies (Artocarpus elasticus) tidak ditemukan anakan di tingkat belta maupun semai. Secara keseluruhan, dari 89 spesies pohon yang tercatat di zona inti bagian tengah TNBD hanya 70 persen (62 spesies) yang beregenerasi.

ABSTRACT

Research on the structure and composition as well as the regeneration of the trees was conducted in the middle section of the core zone of the Bukit Duabelas National Park, Jambi. Research using the plots method, with sampling an area of one hectare plot is divided into 100 subplots measuring 10 m x 10 m for the enumeration trees. Plots 5 m x 5 m and 1 mx 1 m nested within for enumeration saplings and seedlings. As many as 540 trees were recorded in the plot, representing 89 species and 36 families with basal area of 30.837 m2 and Diversity Index value (H ') of 3.97. Dacryodes rostrata recorded as species with the highest importance value (15.80%) followed by Shorea leprosula (15.58%) and Hydnocarpus sp. (14.91%). Shorea leprosula is a species with the highest basal area of 2.829 m2 or 9.17% of the total. Families having the highest importance values were Burseraceae (31.60%) and Dipterocarp (28.89%), while the families with the highest number of species recorded was Lauraceae (6 species). There are 9 species listed in the IUCN Red List category, 2 of which are in the category of Critically endangered (Parashorea lucida) and Endangered (Shorea leprosula) and 7 others in the category Low risk. As many as 251 tree seedlings were recorded in the plot, representing 73 species and 31 families. 305 sapling were recorded in the plot, representing 73 species and 30 families. Out of 10 species of tree which has the highest density, 6 species which had a good number of saplings and seedlings, i.e., Hydnocarpus sp., Antidesma neurocarpum, Shorea leprosula, Mussaenda frondosa, Prunus grisea and Microcos crassifolia,; only three species had individuals at at sapling stage only, i.e., Dacryodes rostrata, Dacryodes rugosa and Symplocos sp., and one species (Artocarpus elasticus) was not found at both saplings and seedling stages. Overall, of the 89 tree species recorded in the middle section of the core zone of the Bukit Duabelas National Park, Jambi, only 70 percent (62 species) were regenerating."

Universitas Indonesia, 2013

T35984

UI - Tesis Membership Universitas Indonesia Library

Sehati

Komposisi dan struktur hutan pamah di zona inti bagian barat Taman Nasional Bukit Duabelas, Jambi = Composition and structure of a lowland forest in the western part of the core zone of the Bukit Duabelas National Park, Jambi / Sehati

"ABSTRAK

Telah dilakukan penelitian tentang komposisi dan struktur hutan pamah serta regenerasi pohon di zona inti bagian barat Taman Nasional Bukit Duabelas, Jambi pada bulan Oktober-November 2012. Plot seluas satu hektare diletakkan di tanah datar di punggung bukit. Plot dibagi menjadi 100 petak yang masing-masing berukuran 10x10 m untuk pencacahan pohon. Petak 5x5 m dan 1x1 m disarangkan dalam plot tersebut untuk pencacahan belta dan semai. Hasil penelitian menunjukkan bahwa pohon dengan diameter setinggi dada (DSD) ≥ 10 cm tercatat sebanyak 463 individu, mewakili 91 spesies dan 36 famili, dengan total area dasar (AD) 27,21 m2 dan indeks keanekaragaman shannon-wiener (H’) 4,04. Spesies dominan berdasarkan nilai kepentingan (NK) adalah Archidendron bubalinum dengan NK tertinggi sebesar 13,93%, diikuti Dacryodes sp. 12,32% dan Antidesma neurocarpum sebesar 12,17%. Archidendron bubalinum adalah spesies dengan kerapatan tertinggi (29 pohon/ha) dan frekuensi tertinggi (22). Koompassia malacensis dari famili Caesalpiniaceae memiliki AD tertinggi 2,23 m2 atau 8,18% dari total AD dalam plot. Burseraceae (32,73%) dan Dipterocarpaceae (25,78%) merupakan famili dengan NK tertinggi, sedangkan famili dengan spesies terbanyak tercatat pada famili Euphorbiaceae (7 spesies). Sebanyak 12 spesies (71 individu) masuk dalam kategori redlist IUCN, 2 di antaranya masuk dalam kategori Critically Endangered (Prashorea lucida dan Shorea acuminata), Endangered (Shorea leprosula), Lower Risk (8 spesies), dan vulnerable (1 spesies). Tercatat sebanyak 511 individu pada tingkat semai, yang diwakili oleh 57 spesies dan 32 famili. Pada tingkat belta tercatat 570 individu yang diwakili oleh 87 spesies dan 36 famili. Di antara 10 spesies pohon yang memiliki kerapatan tertinggi, terdapat 6 spesies (Archidendron bubalinum, Dacryodes sp., Antidesma neurocarpum, Ochanostachys sp., Knema laurina, dan Hydnocarpus sp.) memiliki sebaran lengkap. Empat spesies hanya memiliki sebaran anakan di tingkat belta (Koompassia malacensis, Parashorea lucida, Leptonychia caudata, dan Dacryodes rostrata). Sebanyak 65 spesies atau 71,43% dari semua spesies pohon beregenerasi dalam petak penelitian.

ABSTRACT

Study on the composition, structure, and regeneration of the lowland forest in the western part of the core zone of the Bukit Duabelas National Park, Jambi, was conducted in October-November 2012. A one-hectare plot was established on a flatland, over a ridge. It was divided into 100 quadrats of 10 x 10 m each for the enumeration of trees. Subplots of 5x5 m and 1x1 m were nested within the 10x10 m quadrats for enumeration of saplings and seedlings. The results showed that as many as 463 trees with a diameter at breast height (DBH) ≥ 10 cm were recorded, representing 91 species and 36 families, with a total basal area (BA) of 27.21 m2 and the Shannon-Wiener diversity index (H ') of 4.04. The prevalent species in the plot was Archidendron bubalinum with highest importance value (IV) of 13.93%, followed by Dacryodes sp. with IV of 12.32% and Antidesma neurocarpum with IV of 12.17%. Archidendron bubalinum was the species with the highest density (29 trees/ha) and highest frequency (22). Koompassia malacensis from Caesalpiniaceae was a species having the highest BA 2.23 m2 or 8.18% of the total BA in the plot. Burseraceae (32.73%) and Dipterocarpaceae (25.78%) were a families with the highest IV, while the families with the highest number of species recorded was Euphorbiaceae (7 species). A total of 12 species (71 individuals) occurring in the plot were listed in the IUCN redlist category, 2 of which were in the category of Critically Endangered (Prashorea lucida and Shorea acuminata), Endangered (Shorea leprosula), Lower Risk (8 species), and vulnerable (1 species). We recorded 511 individuals of tree seedling, representing 57 species and 32 families. At the sapling stage 570 individuals were recorded representing 87 species and 36 families. Out of 10 species of tree with the highest density, 6 species (Archidendron bubalinum, Antidesma neurocarpum, Dacryodes sp., Hydnocarpus sp., Knema laurina, and Ochanostachys sp.) had a good number of saplings and seedlings. Only four species had individuals at sapling stage (Koompassia malacensis, Parashorea lucida, Leptonychia caudata, and Dacryodes rostrata). A total of 65 species or 71.43% of all tree species were regenerating in plot."

Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014

T39237

UI - Tesis Membership Universitas Indonesia Library

Mochamad Muslich

Analisis vegetasi dan perspektif masyarakat terhadap nilai kepentingan fungsi vegetasi pada zona riparian Ciliwung Segmen Bogor-Depok = Analysis of vegetation and local s perspectives of riparian vegetation values in the Ciliwung River Segment Bogor-Depok

"Vegetasi yang tumbuh pada zona riparian memiliki peran penting dalam melindungi fungsi dan struktur sungai. Penelitian bertujuan untuk mengetahui keanekaragaman spesies dan struktur vegetasi serta perspektif masyarakat terhadap nilai kepentingan vegetasi pada zona riparian. Penelitian dilakukan pada Maret-September 2014 di Ciliwung segmen Bogor-Depok. Analisis vegetasi dilakukan dengan metode petak (quadrat) berukuran 40 x 50 m. Sebanyak 15 pasang petak pengamatan di kanan-kiri sungai ditempatkan secara systematic sampling pada interval jarak 4 km mengikuti panjang aliran sungai. Seluruh tumbuhan berdiameter ≥ 2 cm dalam petak pengamatan diidentifikasi nama spesiesnya dan diukur diameternya. Perspektif masyarakat terhadap nilai vegetasi diidentifikasi dengan pendekatan etnobotani melalui observasi, wawancara mendalam, dan diskusi kelompok masyarakat di tiga lokasi yang mewakili komplek perumahan dan perkampungan. Data kuantitatif nilai kepentingan spesies dan kategori fungsi vegetasi dihitung dengan pendekatan LUVI (Local's User Value Index). Jumlah spesies tumbuhan yang ditemukan di dalam petak pengamatan sebanyak 105 spesies dari 36 famili. Famili yang memiliki anggota spesies paling banyak adalah Fabaceae dan Moraceae, masing-masing 11 spesies. Indeks keanekaragaman (H') spesies tumbuhan pada seluruh lokasi penelitian sebesar 3,23 dengan indeks kemerataan spesies (E) 0,69. Spesies tumbuhan yang mendominasi di antaranya Gigantochloa apus (INP 42,90 %), Musa paradisiaca (INP 38,44 %), Paraserianthes falcataria (INP 16,20 %), Swietenia macrophylla (INP 15,46 %), dan Cecropia peltata (INP 13,76 %). Masyarakat mengetahui 14 kategori fungsi vegetasi yang tumbuh pada zona riparian. Kategori yang memiliki nilai kepentingan tertinggi adalah mencegah longsor tebing sungai dengan LUVI 31,00. Spesies tumbuhan yang memiliki nilai kepentingan tertinggi menurut perspektif masyarakat adalah Gigantochloa apus (J.A. & J.H. Schults) dengan LUVI 15,62.

Riparian vegetation has important rules on protection of the river functions and structure. The objectives of the study were to identify species diversity and vegetation structure and also to define local's perspectives of the riparian vegetation function in Ciliwung River segment Bogor-Depok. Fifteen pairs of 40 x 50 m quadrat plots have been used to analyse diversity and structure of riparian vegetation. All plants ≥ 2 cm diameter were identified and measured for diameter. Local's perspectives on riparian vegetation values were identified by ethnobotany approach through in-depth interview, field observation, and Focus Group Discussion. Quantitative data on local's perspectives were analysed by Local's User Value Index (LUVI). The total number plants species were 105 species and 36 families. Fabaceae and Moraceae were highest number in species member (11 species). The diversity index (H) was 3.23 and the equitability species index (E) was 0.69. Gigantochloa apus (J.A. & J.H. Schultz) Kurz is the most dominant species that has highest Important Values Index (42.90 %), followed by Musa paradisiaca (IVI 38.44 %), Paraserianthes falcataria (IVI 16.20 %), Swietenia macrophylla (IVI 15.46 %), and Cecropia peltata (INP 13.76 %). 14 functions of the riparian vegetation were known by local people. The most important function of the riparian vegetation was prevention of riverbank from landslide (LUVI 31.00) and the most important species for the whole category functions was Gigantochloa apus (J.A. & J.H. Schults) Kurz with LUVI 15.62."

Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014

T43307

UI - Tesis Membership Universitas Indonesia Library

Ana Jauhara

Tingkat serapan karbon dan kandungan klorofil fitoplankton serta analisis sampah dan sedimen di perairan setu, kampus Universitas Indonesia, Depok = The level of carbon uptake and phytoplankton chlorophyll content and analysis of trash and sediment in the waters of the Setu, the campus of the University of Indonesia, Depok

"[ABSTRAK

Telah dilakukan penelitian mengenai tingkat serapan karbon dan

kandungan klorofil serta analisis sampah, sedimen, dan volume di lima situ

Kampus UI Depok. Penelitian bertujuan untuk menganalisis tingkat serapan

karbon dan kandungan klorofil, serta materi organik dalam sampah, sedimen dan

volume di lima situ Kampus UI Depok. Penelitian dilakukan di lima situ Kampus

UI Depok, yaitu Situ Agathis, Situ Mahoni, Situ Puspa, Situ Ulin, dan Situ Salam.

Pengambilan sampel dilakukan pada bulan Maret--April 2014. Pengukuran

produktivitas primer perairan menggunakan metode botol gelap-terang. Botol

gelap dan botol terang diletakkan pada kedalaman 0 cm, 10 cm, 30 cm, 50 cm, 70

cm, dan 80 cm. Pengambilan sampel fitoplankton dilakukan menggunakan

plankton net. Pengukuran kandungan klorofil-a dan klorofil-b menggunakan

spektrofotometer dengan panjang gelombang 750, 664, 647 dan 630 nm.

Perangkap sampah organik berupa kain nylon dengan ukuran pori 1 mm2

diletakkan pada inlet dan outlet secara bersamaan di lima situ Kampus UI Depok.

Pengambilan sampel sedimen dilakukan menggunakan Peterson Grab. Sampel

sedimen dianalisis kadar karbon organik dengan metode Walkley-Black. Metode

3D Analyst ArcView 10.1 digunakan untuk menghitung volume situ. Tingkat

serapan karbon di lima situ Kampus UI Depok memiliki potensi menyerap karbon

rata-rata sebesar 48,61 mgC/m3/jam. Kandungan klorofil-a dan klorofil-b di lima

situ Kampus UI Depok rata-rata sebesar 2,59 mg/l dan 0,35 mg/l. Hasil

identifikasi sampel fitoplankton diperoleh empat kelas, yaitu Chlorophyceae,

Cyanophyceae, Euglenophyceae, dan Bacillariophyceae. Kepadatan tertinggi dan

nilai dominansi tertinggi pada sampel fitoplankton di lima situ Kampus UI Depok

terdapat pada kelas Chlorophyceae. Terjadi penumpukan sampah organik sebesar

0,55 gr/m3/jam. Tipe sedimen pasir mendominasi di perairan lima situ Kampus UI

Depok. Kandungn karbon pada sampel sedimen kerikil sebesar 19,75--26,58 ppm,

pasir sebesar 28,47--38,55 ppm, dan lumpur sebesar 36,79--42,05 ppm. Perairan

lima situ di Kampus UI Depok memiliki potensi dalam menampung volume air

sebesar 654.830 m3.

ABSTRACT

Research has conducted about the level of carbon uptake and chlorophyll

content as well as the analysis of trash, sediment, and volume in five lakes at

Campus UI Depok. The study aimed to analyze the level of carbon uptake and

chlorophyll content, and organic matter in the litter, sediment and volume in five

lakes at Campus UI Depok. The study was conducted in five lakes at Campus UI

Depok, namely Agathis, Mahoni, Puspa, Ulin, and Salam. Sampling was

conducted in March-April 2014. Measurements of primary productivity in the

water using light-dark bottle method. Dark bottle and light bottle placed at a depth

of 0 cm, 10 cm, 30 cm, 50 cm, 70 cm, and 80 cm. Sampling of phytoplankton was

conducted using a plankton net. Measurement of chlorophyll-a and chlorophyll-b

using a spectrophotometer with a wavelength of 750, 664, 647 and 630 nm.

Pitfalls of organic waste in the form of nylon fabric with a pore size of 1 mm2

placed at the inlet and outlet simultaneously in five lakes at Campus UI Depok.

Sampling of sediment was conducted using a Peterson Grab. Sediment samples

were analyzed with the organic carbon content of the Walkley-Black method. 3D

Analyst ArcView 10.1 method used to calculate the volume of the lakes. The rate

of carbon uptake in five UI Depok it has the potential to absorb carbon by an

average of 48.61 mgC/m3/hour. The content of chlorophyll-a and chlorophyll-b in

five lakes at Campus UI Depok was average of 2.59 mg/l and 0.35 mg/l. The

results of the identification of phytoplankton samples obtained four classes,

namely Chlorophyceae, Cyanophyceae, Euglenophyceae, and Bacillariophyceae.

The highest density and highest dominance values in samples of phytoplankton in

five lakes at Campus UI Depok contained in the class Chlorophyceae. Build up of

organic waste by 0.55 gr/m3/hour. Sand sediment types dominate in five lakes at

Campus UI Depok. Carbon content in sediment samples gravel at 19.75 to 26.58

ppm, the sand at 28.47 to 38.55 ppm, and the mud of 36.79 to 42.05 ppm. The five

lakes at Campus UI Depok has the potential to accommodate the volume of

waters at 654.830 m3.;Research has conducted about the level of carbon uptake and chlorophyll