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All Journal Jurnal Ilmu Lingkungan Jurnal Kawistara : Jurnal Ilmiah Sosial dan Humaniora EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Indonesian Journal of Forestry Research
Tjut Sugandawaty Djohan
Fakultas Biologi Universitas Gadjah Mada Yogyakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Mathematics

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KONDISI HUTAN BAKAU TEBANGAN MASYARAKAT DAN INDUSTRI PULP DI BATU AMPAR KALIMANTAN BARAT Djohan, Tjut Sugandawaty; Laksono, P.M.; Anantasari, Esti; Utama, Angga N.; Suhesthiningsih, Krisni
Jurnal Kawistara Vol 5, No 2 (2015)
Publisher : Sekolah Pascasarjana UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (641.118 KB)

Abstract

The purpose of this research was to study tree cutting of mangrove forest by the local people of Batu Ampar and the pulp industry at Kapuas river estuary. At each site the rapid measurement methods were established using quadrate plots of 20m x 20m and 5m x 5m, each with 2 replicates. The results revealed that the local people only cut the selective trees of Rhizophora apiculata and Bruguiera gymnorhiza with diameter of 20-25 cm2 at 0.25 ha wide, which created gap canopy as small disturbace to the mangrove forest. This area of gap canopy immediately was colonized and dominated by R. apiculata. The mangrove tree cuttings created the phase gap generations. This forest recovered quickly, thus the small distrurbance maintained the mangrove tree species diversity. The Rhizophora roots were habitat for nusery grown of larval shrimps, crabs, and fishes. The pulp industry cut all of the mangrove species wich created big disturbance and huge gap area. The forest also recovered quickly, but was dominated by Xylocarpus granatum. Thus, the big disturbance by the pulp industry caused the shifted species of the mangrove forest species from Rhizophora and Bruguiera to Xylocarpus. The roots of Xylocarpus tree were not habitat forthelarval shrimps, crabs, and fishes, which decreased the fisherman catch. The forest rehabilitation of industrial cutting was planted regularly with Rhizophora, and created many current canals which proned to the erosion. Thus the pulp industry of mangrove forest cutting threatened nursery habitat and species diversity at the mangrove forest of Batu Ampar.
Erosi Pantai, Ekosistem Hutan Bakau dan Adaptasi Masyarakat Terhadap Bencana Kerusakan Pantai Di negara Tropis (Coastal Erosion, Mangrove Ecosystems and Community Adaptation to Coastal Disasters in Tropical Countries) Akbar, Aji Ali; Sartohadi, Junun; Djohan, Tjut Sugandawaty; Ritohardoyo, Su
Jurnal Ilmu Lingkungan Vol 15, No 1 (2017): April 2017
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (808.806 KB) | DOI: 10.14710/jil.15.1.1-10

Abstract

ABSTRAK Tulisan ini bertujuan untuk mengkaji terjadinya kerusakan lingkungan pantai di negara tropis dan sebagian negara subtropis akibat perilaku manusia. Perilaku manusia yang menyebabkan kerusakan lingkungan adalah memanfaatkan sumberdaya alam pesisir tanpa memperhatikan keberlanjutan sumber daya alam dan daya dukung lingkungannya. Kerusakan lingkungan pantai yang umum terjadi di negara tropis dan sebagian subtropis adalah erosi pantai dan degradasi ekosistem hutan bakau. Kerusakan lingkungan pantai ini akibat alih fungsi lahan menjadi jaringan jalan, permukiman, lahan pertanian/ perkebunan, pertambakan, dan pertambangan pasir. Kerusakan lingkungan pantai mempengaruhi kondisi sosial ekonomi masyarakat setempat seperti hilangnya badan jalan, permukiman, lahan pertanian, dan fasilitas umum akibat abrasi pantai. Upaya penanggulangan kerusakan lingkungan pantai sebagai bagian dari adaptasi manusia mempertahankan kehidupannya berupa pembangunan pemecah gelombang (breakwaters) dan rehabilitasi ekosistem hutan bakau. Upaya penanggulangan bencana tersebut tentunya membutuhkan biaya yang besar dan waktu lama daripada upaya pencegahan. Oleh karena itu, perubahan pola pikir baik pemerintah dan masyarakat dalam memanfaatkan, mengelola dan melestarikan sumber daya alam perlu ditingkatkan melalui perbaikan informasi, ilmu pengetahuan, dan strategi perencanaan yang holistik.Kata kunci: erosi pantai, kerusakan ekosistem hutan bakau, alih fungsi lahan, pemecah gelombang, rehabilitasiABSTRACTThis paper aims to assess the coastal degradation in tropical and subtropical countries in part due to human behavior. Human behavior is causing coastal degradation is to utilize natural resources without regard to the sustainability of coastal natural resources and the carrying capacity of the environment. Degradation of coastal common in most tropical and subtropical countries are coastal erosion and degradation of mangrove ecosystems. This coastal degradation as a result of land conversion into roads, settlements, agricultural/ plantation, aquaculture, and sand mining. Coastal degradation affects the socio-economic conditions of local communities such as loss roads, settlements, land and public facilities as a result of coastal erosion. Efforts to cope to the coastal degradation as part of human adaptation to sustain life in the form of construction of breakwaters and rehabilitation of mangrove ecosystems. The disaster relief certainly require a plenty of cost and time than prevention. Therefore, changes in the mindset of both the government and the public in using, managing and conserving natural resources should be increased through improvement of information, knowledge, and holistic planning strategies.Keywords: coastal erosion, mangrove ecosystem degradation, land use, breakwaters, rehabilitationCara sitasi: Akbar,A.,A., Sartohadi., J., Djohan, T.S. and Ritohardoyo, S. (2017). Erosi Pantai, Ekosistem Hutan Bakau dan Adaptasi Masyarakat Terhadap Bencana Kerusakan Pantai Di negara Tropis. Jurnal Ilmu Lingkungan,15(1),1-10, doi:10.14710/jil.15.1.1-10
PROFIL HUTAN PEGUNUNGAN KAMOJANG, JAWA BARAT Isoralla, .; Djohan, Tjut Sugandawaty; Maulidika, Alicya Inmas; Agung, Putry
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 25, No 1 (2025): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v25i1.11280

Abstract

This research was aims to study natural and disturbed mountain forest profile of Kamojang at 1300-1600 m dpl, West Java. Forest profile was made by Oldeman method, data were collected by quadrat plots size 20m x 20m with 4 times replicated. The result showed natural forest composed by 5 strata, disturbed forest composed by 3-4 strata without first strata. The most abundance trees in first strata was Castanopsis javanica between 2-11 ind/0,16 ha and in second strata was Engelhardia spicata between 5-7 ind/0,16 ha. All these locations study were not found any emergent trees and composed by different vegetation because of selective cutting activity to vegetation that had economic value. The most abundance growthform in natural and disturbed forest were sapling between 15-32 species/0,16 ha in natural forest and 3-23 species/0,16 ha in disturbed forest. The most abundance trees and sapling in natural forest were Villebrunea rubescens between 5-51 ind/0,16 ha. In contrast, most abundance trees in disturbed forest were Altingia excelsa 20 ind/0,16 ha and sapling were Erythtroxylum cuneatum between 1-19 ind/0,16 ha. There were variation presence of trees-seedling in natural forest, the most abundance were Morinda tomentosa between 1-26 ind/0,16 ha. The most abundance trees-seedling in disturbed forest were Dysoxylum parasiticum, Hypobathrum racemosum, Laportea sp., dan Macaranga rhizinoides between 3 ind/0,16 ha in Raksamala rehabilitated forest which growth naturally. Cover of canopy in natural forest were 0,17-0,32 ha/0,16 ha. In contrast, there were 0,02-0,08 ha/0,16 ha in disturbed forest. Nutrients content of soil such as NO3, NH4, PO4, K+, C, and BO in all locations were high. Content of nitrate around 10-60 ppm. Natural forest had interlock canopy and quilted layers which good for water conservatories. Both natural and disturbed forest were found invasive species Eupatorium odoratum. The limiting factor were the light and human activity.
ASSESSING ZOONOTIC POTENTIAL: A STUDY ON COMMUNITY ACCESS TO NATURAL RESOURCES IN SEBANGAU NATIONAL PARK, INDONESIA Panda, Adventus; Priyowidodo, Dwi; Artama, Wayan Tunas; Djohan, Tjut Sugandawaty
Indonesian Journal of Forestry Research Vol. 12 No. 2 (2025): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2025.12.2.273-286

Abstract

The community surrounding Sebangau National Park (SNP) play a key role in comprehending the epidemiological triad. Peat forests have experienced illegal logging and concessions practises from the early 1970s to 2005. The disturbed forest habitat offers the perfect setting for the inter-species transmission of pathogenic agents. The purpose of this study was to identify any possible zoonotic concerns based on the typical community activities across SNP. Community access data were collected using questionnaires and interview in Kereng Bangkirai (Sebangau River), Asem Kumbang, Baun Bango, Tumbang Ronen, Jahanjang, and Karuing (Katingan River) as the representatives’ villages. These settlements are close to the locations used for field sampling (n:102 individuals). The prediction model was developed using CART®Classification for categorical data using MINITAB v. 20.3. We discovered that the model categorised five out of seven factors as important factors. The number of days spent becomes the most crucial predictor (100%), followed by access (95.3%), mode of stay (42.1%), followed by activities (16.8%) and defecation (8.3%), respectively. It was concluded that the longer and deeper they accessed the natural resources; the higher the zoonotic potential would be. The Indonesian Government has established a wildlife health information system, referred to as SehatSatLi, which is designed to protect wildlife genetic resources and reduce the likelihood of zoonotic diseases emerging. It is recommended that stakeholders at all level engaged in coordination, collaboration, and communication as a preventive strategy to inhibit the possible transmission of zoonotic diseases between wildlife and humans, vice versa.
Co-Authors Adventus Panda Agung, Putry Akbar, Aji Ali Angga N. Utama, Angga N. Djoko Marsono Dwi Priyowidodo Eko Haryono Esti Anantasari, Esti Isoralla, . Junun Sartohadi KAMISO HANDOYO NITIMULYO Krisni Suhesthiningsih, Krisni M. Baequni, M. Maizer Said Nahdi Maulidika, Alicya Inmas P.M. Laksono, P.M. Rossie Wiedya Nusantara Su Ritohardoyo Sudarmadji Sudarmadji Wayan Tunas Artama