Lies Rahayu Wijayanti Faida
Bagian Konservasi Sumberdaya Hutan, Fakultas Kehutanan, Universitas Gadjah Mada Jl. Agro No.1, Bulaksumur, Sleman 55281

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Rekonstruksi Hutan Purba di Kawasan Karst Gunungsewu dalam Periode Sejarah Manusia

Jurnal Ilmu Kehutanan Vol 5, No 2 (2011)
Publisher : Jurnal Ilmu Kehutanan

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Abstract

This research was carried out in Gunungsewu Karst area, Gunungkidul District from Kanigoro to Wediombo. The main objectives of this research are (1) to identify floristic history and (2) to reconstruct the palaeoforest profiles in the area. Palaeoecobotanical approach is used as the basis for the reconstruction of palaeoforest. Descriptive-explanatory methods were used to explore, interpret, and reconstruct floristic tracks from pollen analysis, radiocarbon dating, vegetation analysis, and also human cultural history. Explanatory approach was used to describe collected data, to compare, to find association, and to explain the research finding. Hypothetical tests were done by deductive-inductive logics, using general theories for basic foundation to be verified by facts from the fields. This research resulted in three types of flora from Prehistoric times to the present, that is tropical mountainous forest of 16,894±440 - 9,296±140 years BP, tropical rainforests in 9,296±140 - 1,753±90 years BP, and monsoonal forests in 1,753±90 years BP until now. The Euphorbiaceae was the oldest flora occupied the area, existed between 16,894±440 years BP until now, while the Moraceae which is known as the karstic floral identity began to be found since 9,296±140 years BP. Reconstruction of palaeoforest in human prehistory provides information that the tropical mountain forests had inhabited the area before the era of Keplek, then entering the era of Keplek until Ngrijangan the tropical rainforest occupied this area. In the era of Klepu, the forest has been turned into the monsoon type and this type persists through history until now. Cultural traits of prehistoric subsistence can explain that change in the types of flora is not caused by anthropogenic factors, but due to climate change triggered by the ice age expiration that marked the end of the Pleistocen.Keywords: Archaeological site, palaeoforest, pollen analyses, prehistoric times, radiocarbon dating. IntisariPenelitian ini dilakukan di kawasan karst Gunungsewu yang terletak di wilayah kabupaten Gunungkidul, ai Kanigoro hingga Wediombo. Ada dua tujuan dalam penelitian ini, yaitu (1) menemukenali sejarah flora yang menghuni karst Gunungsewu dan (2) merekonstruksi profil hutan-purba berdasarkan periode sejarah manusia. Pendekatan Paleoetnoforestri digunakan metode dasar untuk rekonstruksi hutan, yang berpijak pada hukum uniformitas dan pendekatan analogi. Analisis polen dan pentarikhan radio karbon menjadi alat untuk rekonstruksi hutan selama periode sejarah kebudayaan manusia pada kala Holosen. Perolehan data di analisis secara komparatif dan asosiatif untuk mendapatkan jawaban secara kausatif, sehingga dapat ditarik kesimpulan induktif tentang kondisi hutan purba. Umur lapisan pengendapan polen dinyatakan dengan BP (Before the Present). Pernyataan umur dengan BP ini biasa digunakan dalam mempelajari sejarah kebumian, dan secara Internasional ditetapkan tahun 1950 sebagai titik awal. Untuk mempelajari sejarah kebudayaan manusia digunakan skala Sebelum Masehi-Masehi (SM-M), yang didasarkan pada kelahiran Kristus sebagai titik awal dalam kalender Masehi. Penelititan ini menghasilkan varisai tiga tipe flora dari jaman prasejarah hingga saat ini, yaitu tipe hutan bagian bawah pada 16.894±440 hingga 9.296±140 tahun BP (18.844-11.246 SM), tipe hujan tropika pada 9.296±140 hingga 1.753±90 tahun BP (11.246-3.703 SM), dan tipe hutan monsun pada 1.753±90 tahun BP hingga tarikh modern (3.703 SM - 1950 M). Kelompok flora Euphorbiaceae merupakan kelompok flora yang masa penghuniannya paling lama, yaitu ditemukan pada 16.894±440 tahun BP hingga sekarang, sedangkan kelompok Moraceae yang saat ini dikenal sebagai flora identitas kawasan karst ditemukan pada 9.296±440 tahun BP. Rekonstruksi profil hutan purba pada jaman prasejarah manusia menunjukkan bahwa hutan pegunungan bagian bawah pernah menghuni kawasan karst sejak sebelum periode Keplek, kemudian memasuki periode Keplek hingga Ngrijangan berubah dihuni oleh hutan hujan tropis, dan pada periode Klepu berubah menjadi tipe monsun. Tipe monsun ini terus berlangsung hingga jaman sejarah, bahkan sampai dengan saat ini. Ciri kebudayaan prasejarah yang subsistem dapat menjelaskan, bahwa bukan faktor antropogenik yang menyebabkan bukan tipe flora, merupakan karena perubahan iklim yang dipicu oleh berakhirnya zaman es yang menandai berakhir kala Pleistoten.Kata kunci : Analisis polen, hutan purba pentarikhan karbon, zaman prasejarah, situs palentologi. 

Rekonstruksi Hutan Purba di Kawasan Karst Gunungsewu dalam Periode Sejarah Manusia

Jurnal Ilmu Kehutanan Vol 5, No 2 (2011)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

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Abstract

Penelitian ini dilakukan di kawasan karst Gunungsewu yang terletak di wilayah kabupaten Gunungkidul, ai Kanigoro hingga Wediombo. Ada dua tujuan dalam penelitian ini, yaitu (1) menemukenali sejarah flora yang menghuni karst Gunungsewu dan (2) merekonstruksi profil hutan-purba berdasarkan periode sejarah manusia. Pendekatan Paleoetnoforestri digunakan metode dasar untuk rekonstruksi hutan, yang berpijak pada hukum uniformitas dan pendekatan analogi. Analisis polen dan pentarikhan radio karbon menjadi alat untuk rekonstruksi hutan selama periode sejarah kebudayaan manusia pada kala Holosen. Perolehan data di analisis secara komparatif dan asosiatif untuk mendapatkan jawaban secara kausatif, sehingga dapat ditarik kesimpulan induktif tentang kondisi hutan purba. Umur lapisan pengendapan polen dinyatakan dengan BP (Before the Present). Pernyataan umur dengan BP ini biasa digunakan dalam mempelajari sejarah kebumian, dan secara Internasional ditetapkan tahun 1950 sebagai titik awal. Untuk mempelajari sejarah kebudayaan manusia digunakan skala Sebelum Masehi-Masehi (SM-M), yang didasarkan pada kelahiran Kristus sebagai titik awal dalam kalender Masehi. Penelititan ini menghasilkan varisai tiga tipe flora dari jaman prasejarah hingga saat ini, yaitu tipe hutan bagian bawah pada 16.894±440 hingga 9.296±140 tahun BP (18.844-11.246 SM), tipe hujan tropika pada 9.296±140 hingga 1.753±90 tahun BP (11.246-3.703 SM), dan tipe hutan monsun pada 1.753±90 tahun BP hingga tarikh modern (3.703 SM - 1950 M). Kelompok flora Euphorbiaceae merupakan kelompok flora yang masa penghuniannya paling lama, yaitu ditemukan pada 16.894±440 tahun BP hingga sekarang, sedangkan kelompok Moraceae yang saat ini dikenal sebagai flora identitas kawasan karst ditemukan pada 9.296±440 tahun BP. Rekonstruksi profil hutan purba pada jaman prasejarah manusia menunjukkan bahwa hutan pegunungan bagian bawah pernah menghuni kawasan karst sejak sebelum periode Keplek, kemudian memasuki periode Keplek hingga Ngrijangan berubah dihuni oleh hutan hujan tropis, dan pada periode Klepu berubah menjadi tipe monsun. Tipe monsun ini terus berlangsung hingga jaman sejarah, bahkan sampai dengan saat ini. Ciri kebudayaan prasejarah yang subsistem dapat menjelaskan, bahwa bukan faktor antropogenik yang menyebabkan bukan tipe flora, merupakan karena perubahan iklim yang dipicu oleh berakhirnya zaman es yang menandai berakhir kala Pleistoten.Kata kunci: Analisis polen, hutan purba pentarikhan karbon, zaman prasejarah, situs palentologiReconstruction of Paleoforest in Gunungsewu Karst Area in the Period of Human HistoryAbstractThis research was carried out in Gunungsewu Karst area, Gunungkidul District from Kanigoro to Wediombo. The main objectives of this research are (1) to identify floristic history and (2) to reconstruct the palaeoforest profiles in the area. Palaeoecobotanical approach is used as the basis for the reconstruction of palaeoforest. Descriptive-explanatory methods were used to explore, interpret, and reconstruct floristic tracks from pollen analysis, radiocarbon dating, vegetation analysis, and also human cultural history. Explanatory approach was used to describe collected data, to compare, to find association, and to explain the research finding. Hypothetical tests were done by deductive-inductive logics, using general theories for basic foundation to be verified by facts from the fields. This research resulted in three types of flora from Prehistoric times to the present, that is tropical mountainous forest of 16,894±440 - 9,296±140 years BP, tropical rainforests in 9,296±140 - 1,753±90 years BP, and monsoonal forests in 1,753±90 years BP until now. The Euphorbiaceae was the oldest flora occupied the area, existed between 16,894±440 years BP until now, while the Moraceae which is known as the karstic floral identity began to be found since 9,296±140 years BP. Reconstruction of palaeoforest in human prehistory provides information that the tropical mountain forests had inhabited the area before the era of Keplek, then entering the era of Keplek until Ngrijangan the tropical rainforest occupied this area. In the era of Klepu, the forest has been turned into the monsoon type and this type persists through history until now. Cultural traits of prehistoric subsistence can explain that change in the types of flora is not caused by anthropogenic factors, but due to climate change triggered by the ice age expiration that marked the end of the Pleistocen.

Firewood and Carpentry Wood Contribution to the Communities of Mutis Timau Protected Forest, Timor Island

Jurnal Manajemen Hutan Tropika Vol 24, No 3 (2018)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The existence of Mutis Timau Protected Forest (MTPF) has given a real contribution to the community by providing household energy needs and raw materials for building the houses. This preliminary study is aimed at knowing the contribution of M T PF in terms of firewood and carpentry wood consumption in the community. The study was conducted in 9 villages located in and around MTPF. This study used surveys and employed descriptive analysis with 353 families spread proportionally on every village as the sample. The results show that MTPF contributed to as much as 87.45% of the total firewood consumption of the community living in and around the protected forest, while the remaining 12.55% was supplied from the gardens. These percentages were calculated from the total firewood consumption of 1,912,512 kg year-1. Meanwhile, every 15-20 years, MTPF contributed to 96.98% of the total carpentry wood needs (1,177.3 m3) while the remaining 3.02% was supplied from privately owned gardens. This fact indicates that the dependence level of the community on the forest is high. Consequently, the pressure on the forest is also very high and may cause deforestation and degradation. To prevent deforestation and degradation, social participation in the sustainable management of MTPF is needed. The principles of social forestry must be implemented through social forestry programs such as community empowerment.

Pengaruh Vegetasi Kawasan Sabuk Hijau (Green Belt) Waduk Sermo Kulonprogo terhadap Kenampakan Hasil Proses Erosi dan Pemanfaatan oleh Masyarakat

Majalah Geografi Indonesia Vol 30, No 1 (2016): Maret 2016
Publisher : Fakultas Geografi, Universitas Gadjah Mada

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Abstract

Manfaat sabuk hijau Waduk Sermo dan pengelolaan yang baik dapat dipenuhi dengan terciptanya kondisi vegetasi dan sikap stakeholder yang mendukung keberadaan sabuk hijau. Penelitian ini bertujuan untuk mengetahui strata dan komposisi jenis vegetasi Kawasan Sabuk Hijau Waduk Sermo di Kulonprogo, menganalisis hubungannya dengan kenampakan hasil proses erosi serta menganalisis nilai pemanfaatan lahan sabuk hijau oleh masyarakat. Analisis vegetasi dilakukan pada 6 blok vegetasi yang dominan untuk mengetahui strata dan komposisi jenis vegetasi. Regresi logistik untuk menganalisis hubungan vegetasi  dengan kenampakan hasil proses erosi antara variabel bebas (tinggi pohon, kerapatan tajuk pohon, LBDS (Luas Bidang Dasar) pohon, kerapatan pohon) dengan variabel tergantung nilai skoring erosi visual menurut Morgan (1980). Untuk menganalisis nilai pemanfaatan sabuk hijau dilakukan indepth interview terhadap stakeholder dan pengumpulan data menggunakan kuisioner terhadap petani penggarap sabuk hijau.  Hasil penelitian menunjukkan kelapa dan sengon menjadi ciri khas vegetasi Kawasan Sabuk Hijau waduk Sermo. Terdapat 28 jenis vegetasi, 15 famili dalam strata pohon, tiang, sapihan, dan semai dengan  indeks nilai keragaman (H) tingkat sedang. Jenis pohon yang berbeda mempunyai daya cegah terhadap erosi yang berbeda yang dapat dilihat dari kenampakan hasil proses erosi dibawah tegakan tunggal. Regresi logistik menunjukkan hanya variabel LBDS yang mempengaruhi kejadian erosi. Nilai pemanfaatan langsung hasil Kawasan Sabuk Hijau Waduk Sermo menurut petani penggarap adalah besar sehingga keterlibatan pemanfaatan areal sabuk hijau sulit untuk dicegah.

Risiko Kepunahan Keanekaragaman Hayati di Taman Nasional Gunung Merapi: Tinjauan Spasial

Jurnal Ilmu Kehutanan Vol 9, No 2 (2015)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

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Abstract

Gunung Merapi merupakan habitat dari berbagai spesies khas pegunungan Jawa bagian tengah. Namun demikian, tingginya aktivitas vulkanik Gunung Merapi dan besarnya tekanan masyarakat terhadap kawasan menyebabkan keanekaragaman hayati di sekitar kawasan Gunung Merapi berisiko untuk punah. Penelitian ini bertujuan untuk melakukan analisis spasial risiko kepunahan keanekaragaman hayati di Taman Nasional Gunung Merapi (TNGM). Analisis risiko dilakukan dengan mengukur komponen risiko, yaitu: kerawanan, elemen yang berisiko, dan kerentanan. Identifikasi komponen risiko dilakukan dengan melaksanakan grup diskusi terarah dengan staf Taman Nasional Gunung Merapi. Analisis risiko diukur menggunakan analisis spasial dengan perangkat lunak ArcGIS 10.1. Hasil penelitian menunjukkan bahwa kawasan Taman Nasional Gunung Merapi memiliki kawasan dengan tingkat risiko tinggi seluas 2185.6 ha (35,6%), risiko sedang seluas 3910,1 ha (63,6%), dan risiko rendah seluas 49,8 ha (0,8%). Wilayah yang berisiko tinggi berada di wilayah Resort Pengelolaan Taman Nasional (RPTN) Dukun Kabupaten Magelang, RPTN Turi-Pakem Kabupaten Sleman, dan RPTN Kemalang Kabupaten Klaten.Kata kunci: analisis risiko, keanekaragaman hayati, Taman Nasional Gunung Merapi, analisis spasial, vulkanik. Risk of biodiversity extinction in Gunung Merapi National Park : Spatial assessionAbstractThe Mount Merapi (MM) has a unique landscape and becomes the habitat for mountainous species in the central Java, Indonesia. However, high volcanic activities and massive public pressure on its natural resources have increased the risk of biodiversity extinction in the MM. This study aims to assess the spatial risk of biodiversity extinction in the Mount Merapi National Park (MMNP). The risk analysis has been done by spatially measuring the risk elements i.e. hazard area, element at risk, and vulnerability rate. A Focus Group Discussion has been done to define and to identify components of each risk element. A spatial analysis using ArcGIS 10.1 has been used to measure the risk. The results showed that MMNP have three levels of risks: high risk level area (2185.6 ha, 35. 6%), moderate risk area (3910.1 ha, 63.6%) and low risk area (49.8 ha, 0.8%). The high risk areas were located in Resort Pengelolaan Taman Nasional (RPTN) Dukun in Magelang Distict, RPTN Turi-Pakem in Sleman District, and RPTN Kemalang in Klaten District.

TRADISI MASYARAKAT SELO DAN PARIWISATA DI TAMAN NASIONAL GUNUNG MERBABU, BOYOLALI JAWA TENGAH

SASDAYA: Gadjah Mada Journal of Humanities Vol 1, No 2 (2017): MEI
Publisher : Unit Penelitian dan Publikasi Fakultas Ilmu Budaya Universitas Gadjah Mada

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Abstract

Culture can form civilization or tradition in meeting the needs and well being of the people involved in the environment. One of form the human culture is a work of art. Artwork reveals the attitudes, processes, Symbolics meaning in the form of movement, carvings, paintings, material realized from social and cultural knowledge. Cultural attractions have a high appeal because it has a special value in the form of art performances, traditional ceremonies, the noble values that are contained in an object of mans work in the past. People have a variety of cultural art that consists of various traditions ceremonies, art performances, habits of indigenous people in life. It can be a potential cultural attraction for tourists who visit the National Park area of Mount Merbabu in District Selo, Boyolali regency. The purpose of this research is to know the traditions of performance, art, and culture the people of Selo, Merbabu Mountain National Park, Boyolali Central Java. Culture can shape civilization or tradition in the needs and welfare of life for the people involved in its environment. One form of human culture is the work of art, which reveals attitudes, processes, symbols of meaning in the form of movements, carvings, paintings, material embodied from social and cultural knowledge. Social and cultural knowledge embodies special things such as artistic attractions, traditional rituals passed down until to the present day. The meaning of this honor is an expression of gratitude to the spirit of the ancestors who have helped keep the balance of the region and the agriculture of the Selo community to be safe, safe and abundant. This research uses qualitative and quantitative analysis method by measuring distribution/frequency of performance and implementation of tradition/culture of Selo society. The Selo community has various artistic and traditional cultures, including art performances, ancestral honors (sadranan on the 1st night of Suro), clean villages, and thanksgiving for the harvest. The results of the study found that: 1) the tradition of traditional ceremonies in the form of homage to ancestral spirits (ancestors) of 7.1 percent, 2) performances sendratari of 54.52 percent, 3) the use of public buildings with local architecture of Java that serves as a gallery art as much as 59.03 percent, and 4) Community activities work together 75.48 percent. The data also indicates that the traditions and culture of the Selo community, not only as a potential support for tourism but become an integral part of the development of nature tourism in the area of Gunung Merbabu National Park Boyolali, Central Java.

Tipologi Pola Konsumsi Pangan Untuk Menjaga Ketahanan Pangan Masyarakat Sekitar Kawasan Hutan Lindung Mutis Timau KPH Kabupaten Timor Tengah Selatan

Jurnal Ketahanan Nasional Vol 25, No 1 (2019)
Publisher : Universitas Gadjah Mada

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Abstract

ABSTRACT This study aimed to determined the consumption of various types of foodstuffs by the people in and around the Mutis Timau protected forest area, South Central Timor District Forest Management Unit. The method used was a survey method with a qualitative and quantitative approach with a sample of 353 farmer households distributed proportionally to each village which included Nunbena, Noebesi, Leloboko, Tunua, Ajaobaki, Nuapin, Nenas, Kuanoel, and Fatumnasi. The research was conducted through several stages which included the preparation stage, data collection and analysis phase. Methods of data collection in this study were conducted using structured questionnaires, in-depth interviews, field observations, and literature studies. The data obtained was processed by tabulating data and then analyzed qualitatively and quantitatively by a descriptive method. The results showed that consumption of various types of food per family per day varied in each village with an average consumption of rice 0.86 kg, corn 0.83 kg, cassava 0.25 kg, sweet potatoes 0.28 kg, green beans 0.10 kg and tourist nuts 0.09 kg. While the average consumption per capita per day for rice was 0.18 kg, corn was 0.17 kg, cassava was 0.05 kg, sweet potatoes were 0.06 kg, green beans were 0.02 kg and  nuts were 0.01 kg. The number of households that consumed the type of food that was combined every time they cooked includes corn rice (BJ) 12.46%, sweet potato rice (BJU) 60.05%, corn sweet potato rice (BJUK) 24.92%, corn bean rice (BJK) 1.41% and sweet potato (BU) 1.13%. This combination of eating patterns showed that there were efforts made by households in the society to maintained family food resilience, and  widely to maintained society food resilienceABSTRAK Penelitian ini bertujuan untuk mengetahui konsumsi berbagai jenis bahan makanan oleh masyarakat yang berada di dalam dan sekitar kawasan hutan lindung Mutis Timau, Kesatuan Pengelolaan Hutan Kabupaten Timor Tengah Selatan.Metode yang digunakan adalah metode survey dengan pendekatan kualitatif dan kuantitatif dengan sampel 353 KK petani yang terdistribusi secara proporsional pada setiap desa yang meliputi Nunbena, Noebesi, Leloboko, Tunua, Ajaobaki, Nuapin, Nenas, Kuanoel dan Fatumnasi. Penelitian dilakukan melalui beberapa tahapan yang meliputi tahap persiapan, tahap pengumpulan dan analisis data. Metode pengumpulan data dalam penelitian ini dilakukan dengan menggunakan kuesioner terstruktur, wawancara mendalam, observasi lapangan dan studi literatur. Data yang diperoleh diolah dengan melakukan tabulasi data dan selanjutnya dianalisis secara kualitatif dan kuantitatif dengan metode deskriptif. Hasil penelitian menunjukkan bahwa konsumsi berbagai jenis bahan makanan setiap keluarga per hari bervariasi pada setiap desa dengan rata-rata konsumsi beras 0,86 kg, jagung 0,83 kg, ubi kayu 0,25 kg, ubi jalar 0,28 kg, kacang hijau 0,10 kg, dan kacang turis 0,09 kg. Sedangkan konsumsi rata-rata per kapita per hari untuk beras 0,18 kg, jagung 0,17 kg, ubi kayu 0,052 kg, ubi jalar 0,058 kg, kacang hijau 0,02 kg, dan kacang turis 0,01 kg. Jumlah rumah tangga yang mengkonsumsi jenis bahan makanan yang dikombinasikan setiap kali masak meliputi beras jagung (BJ) 12,46%, beras jagung ubi (BJU) 60,05%, beras jagung ubi kacang (BJUK) 24,92%, beras jagung kacang (BJK) 1,41% dan beras ubi (BU) 1,13%. Kombinasi pola makan ini menunjukkan bahwa ada upaya yang dilakukan oleh rumah tangga di masyarakat untuk menjaga ketahanan pangan keluarga, dan secara meluas untuk menjaga ketahanan pangan masyarakat

Social Capital in Mangrove Utilization for Silvofishery: Case Study in Kutai National Park, Indonesia

Jurnal Manajemen Hutan Tropika Vol 24, No 2 (2018)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Social capital has an important role in mangrove management on conservation areas. Utilization of mangrove forest with silvofishery system can be an alternative developed for the community around the conservation areas. The purpose of this research is to know the strength of social capital in supporting the utilization of mangrove for silvofishery. This research adopted Social Capital Assessment Tool method and data analysis with Partial Least Square-Structural Equation Modeling. The results of the study found that there were several elements of social capital in five study villages that have not supported silvofishery in Kutai National Park (KNP), East Kalimantan, Indonesia. The overall analysis of the respondents showed that there were five elements of social capital have significant effect on silvofishery. The other two elements were insignificant and should be of particular concern to be improved, i.e. social networks and social norms. Indicators to be aware of were the increased knowledge of communities on park-related regulations, increased involvement of individuals in the community, and the strengthening of public figures who can be role models for the community. Mangrove forest of KNP should be kept as conservation area, but it should still pay attention to the socio-economic conditions of the surrounding community. The strength of social capital is expected to realize conservation-based economic development.

Pemodelan Efektivitas Hutan Pantai di Cagar Alam Pananjung Pangandaran Sebagai Buffer Tsunami

Jurnal Ilmu Kehutanan Vol 13, No 1 (2019)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

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Abstract

Kawasan pantai selatan Jawa merupakan daerah pesisir yang rawan terjadi tsunami. Tahun 2006 tsunami dengan kekuatan gempa 6 skala Richter melanda daerah Pangandaran termasuk Cagar Alam Pananjung. Terdapatnya hutan pantai di Cagar Alam Pananjung mampu mereduksi kekuatan tsunami sehingga efek merusak tsunami dapat diminimalkan. Penelitian ini dilakukan dengan tujuan untuk memodelkan efektivitas hutan pantai Cagar Alam Pananjung Pangandaran sebagai buffer tsunami dengan berbagai faktor pereduksi tsunami. Nested sampling digunakan untuk pengambilan data karakteristik vegetasi dengan intensitas sampling 4%. Luas hutan pantai 38 ha, sehingga digunakan petak ukur sebanyak 38 petak ukur persegi dengan ukuran petak ukur untuk tumbuhan bawah 1 m x 1 m, semai 2 m x 2 m, sapihan 5 m x 5 m, tiang 10 m x 10 m, dan pohon 20 x 20 m. Petak ukur ditempatkan secara purposive dengan mempertimbangkan lokasi genangan tsunami dan kerapatan vegetasi. Kerapatan vegetasi dilakukan dengan analisis citra Sentinel 2-A tahun 2017. Efektifitas hutan pantai sebagai buffer tsunami dianalisis menggunakan persamaan matematis menggunakan konsep Harada dan Imamura (2003) dan dimodelkan dengan Spatial Multi Criteria Analysis (SMCA) dengan kriteria lebar hutan pantai, kerapatan vegetasi, diameter pohon, dan kerapatan tumbuhan bawah. Hasil penelitian menunjukkan nilai-nilai parameter hutan pantai pereduksi tsunami di Cagar Alam Pananjung berupa kerapatan vegetasi > 2000 ind/ha, rata-rata diameter pohon yaitu 15,94 cm, dan lebar hutan pantai antara 120– 325 m. Ketinggian tempat hutan pantai Cagar Alam Pananjung bergelombang antara 0–59 m dpl. Hasil pemodelan menunjukkan efektivitas hutan pantai Cagar Alam Pananjung sebagai buffer dalam meredam energi tsunami memiliki nilai reduksi sebesar 41,18%, sehingga termasuk kategori efektif. Effectiveness Model of Coastal Forest in Pananjung Nature Reserve, Pangandaran as Tsunami Buffer AbstractThe southern coast of Java is a coastal area prone to tsunami. In 2006, a tsunami with a magnitude of 6 Richter scale happened in Pangandaran area including Pananjung Nature Reserve. The presence of coastal forest in the Pananjung Nature Reserve reduced the force of the tsunami so that the destructive effect of the tsunami can be minimized. This research aimed to model and assess the effectiveness of coastal forest in Pananjung Nature Reserve as a tsunami buffer. Nested sampling was used to collect vegetation data with 4% sampling intensity. Extensive coastal forest of 38 ha was measured in 38 square forest sample plots with the size of the plot for the understorey 1 mx 1 m, seedlings 2 m x 2 m, saplings 5 mx 5 m, poles 10 m x 10 m, and trees 20 x 20 m. The plots were located purposively by considering the location of tsunami inundation and vegetation density. The vegetation density was performed by image analysis of Sentinel 2-A2017. The effectiveness of coastal forests as tsunami buffers was analyzed using mathematical concepts according to Harada and Imamura (2003) and modeled with Spatial Multi Criteria Analysis (SMCA) with width coastal vegetation criteria, vegetation density, tree diameter, and density of understorey. The results showed that in Pananjung Nature Reserve has vegetation density > 2000 ind/ha, average tree diameter of 15.94 cm, and coastal forest width between 120 m - 325 m. Topography of coastal forest Pananjung Nature Reserve waved between 0 m asl - 59 m asl. It was found that the effectiveness of coastal forest Pananjung Nature Reserve in reducing energy tsunami was in the value of 41.18%, thus it was included in the effective category.