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All Journal Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Jurnal Sains dan Teknologi Mitigasi Bencana Berkala Ilmiah Biologi
Utami, Dyah Nursita
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Immunology & microbiology Medicine & Pharmacology Veterinary

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KAJIAN DAMPAK PERUBAHAN IKLIM TERHADAP DEGRADASI TANAH Utami, Dyah Nursita
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Vol 3, No 2 (2019): Jurnal Alami
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/alami.v3i2.3744

Abstract

ABSTRACTNatural disasters that occur in Indonesia are disasters caused by climate change, such as landslides, floods, flash floods, droughts, forest and land fires, crop failures and other natural disaster. Climate change such as rainfall trends, temperature trends, normal changes in rainfall, extreme climate changes greatly affect the balance of the environmental ecosystem which then becomes one of the triggers of natural disasters that occur. For example changes in high rainfall will affect the physical, biological and chemical nature of the soil which makes soil prone to soil erosion and even landslides can occur. Extreme changes in air temperature also affect soil degradation resulting in soil compaction, fractures, acidification and reduced soil organic matter and biodiversity of soil biota, so that plants lack nutrients and eventually crop failure occurs.Because of that basis, the study of the impacts of climate change on soil properties needs to be done in the hope that they can take the right steps in dealing with climate change, so that the environment has resilience in dealing with climate change Keywords: climate change, soil degradation, environmental resilience ABSTRAKBencana alam yang terjadi di Indonesia merupakan bencana yang banyak disebabkan oleh adanya perubahan iklim, seperti tanah longsor, banjir, banjir bandang, kekeringan, kebakaran hutan dan lahan, gagal panen serta bencana alam lain sebagainya. Perubahan iklim seperti tren curah hujan, tren suhu, perubahan normal curah hujan, ekstrem perubahan iklim sangat mempengaruhi keseimbangan ekosistem lingkungan yang kemudian menjadi salah satu trigger bencana alam itu terjadi. Sebagai contoh perubahan curah hujan yang tinggi akan mempergaruhi sifat tanah secara fisik, biologi dan kimiawi yang menjadikan tanah rawan terkena erosi tanah bahkan dapat terjadi tanah longsor. Perubahan suhu udara yang ekstrim juga berpengaruh terhadap degradasi tanah sehingga terjadi pemadatan tanah, rekahan, pengasaman serta berkurangnya bahan organik tanah serta biodiversitas biota tanah, sehingga tanaman kekurangan unsur hara dan akhirnya terjadi gagal panen. Karena dasar itulah kajian dampak perubahan iklim terhadap sifat-sifat tanah perlu dilakukan dengan harapan dapat mengambil langkah yang tepat dalam menghadapi perubahan iklim, sehingga lingkungan mempunyai ketangguhan (resilience) dalam menghadapi perubahan iklim. Kata kunci: perubahan iklim, degradasi tanah, ketangguhan lingkungan.
KAJIAN DAMPAK PERUBAHAN IKLIM TERHADAP DEGRADASI TANAH Utami, Dyah Nursita
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Vol 3, No 2 (2019): Jurnal Alami
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/alami.v3i2.3744

Abstract

ABSTRACTNatural disasters that occur in Indonesia are disasters caused by climate change, such as landslides, floods, flash floods, droughts, forest and land fires, crop failures and other natural disaster. Climate change such as rainfall trends, temperature trends, normal changes in rainfall, extreme climate changes greatly affect the balance of the environmental ecosystem which then becomes one of the triggers of natural disasters that occur. For example changes in high rainfall will affect the physical, biological and chemical nature of the soil which makes soil prone to soil erosion and even landslides can occur. Extreme changes in air temperature also affect soil degradation resulting in soil compaction, fractures, acidification and reduced soil organic matter and biodiversity of soil biota, so that plants lack nutrients and eventually crop failure occurs.Because of that basis, the study of the impacts of climate change on soil properties needs to be done in the hope that they can take the right steps in dealing with climate change, so that the environment has resilience in dealing with climate change Keywords: climate change, soil degradation, environmental resilience ABSTRAKBencana alam yang terjadi di Indonesia merupakan bencana yang banyak disebabkan oleh adanya perubahan iklim, seperti tanah longsor, banjir, banjir bandang, kekeringan, kebakaran hutan dan lahan, gagal panen serta bencana alam lain sebagainya. Perubahan iklim seperti tren curah hujan, tren suhu, perubahan normal curah hujan, ekstrem perubahan iklim sangat mempengaruhi keseimbangan ekosistem lingkungan yang kemudian menjadi salah satu trigger bencana alam itu terjadi. Sebagai contoh perubahan curah hujan yang tinggi akan mempergaruhi sifat tanah secara fisik, biologi dan kimiawi yang menjadikan tanah rawan terkena erosi tanah bahkan dapat terjadi tanah longsor. Perubahan suhu udara yang ekstrim juga berpengaruh terhadap degradasi tanah sehingga terjadi pemadatan tanah, rekahan, pengasaman serta berkurangnya bahan organik tanah serta biodiversitas biota tanah, sehingga tanaman kekurangan unsur hara dan akhirnya terjadi gagal panen. Karena dasar itulah kajian dampak perubahan iklim terhadap sifat-sifat tanah perlu dilakukan dengan harapan dapat mengambil langkah yang tepat dalam menghadapi perubahan iklim, sehingga lingkungan mempunyai ketangguhan (resilience) dalam menghadapi perubahan iklim. Kata kunci: perubahan iklim, degradasi tanah, ketangguhan lingkungan.
KAJIAN JENIS MINERALOGI LEMPUNG DAN IMPLIKASINYA DENGAN GERAKAN TANAH Utami, Dyah Nursita
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Vol 2, No 2 (2018): Jurnal Alami
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (523.503 KB) | DOI: 10.29122/alami.v2i2.3095

Abstract

Indonesia merupakan daerah beriklim tropis yang terletak pada lokasi geografis khatulistiwa, menyebabkan sebagian wilayah di Indonesia ditutupi oleh jenis tanah dari pelapukan batuan yang berlangsung intensif. Perpaduan dengan topografi yang bervariasi menyebabkan Indonesia mempunyai kerentanan tinggi terhadap adanya bencana gerakan tanah. Dari proses diagenesis dan dekomposisi batuan, tanah yang terbentuk di Indonesia mempunyai sifat ekspansif yang sangat rentan menjadi pemicu gerakan tanah. Dari proses ini juga akan mempengaruhi kelimpahan mineral lempung beserta sifat-sifatnya. Mineral lempung yang menjadi penyusun sebuah tubuh tanah sangat mempengaruhi sifat tanah yang terbentuk, baik sifat kimia, sifat biologi, dan sifat fisik tanah. Mineral lempung yang menyusun dan terdapat pada tanah lunak atau tanah ekspansif mempunyai karakteristik pembawa sifat geoteknik dan geokimia yang dapat mempengaruhi apapun yang ada di atasnya. Kajian ini bertujuan mengetahui tipe dan sifat dari mineralogi lempung, serta implikasinya terhadap gerakan tanah. Oleh karena itu, pemahaman karakter tipe mineralogi lempung sangat penting dalam mitigasi bencana gerakan tanah di wilayah rawan gerakan tanah.Kata kunci: jenis tanah, ekspansif, mineral lempung, mitigasi gerakan tanah
PLANNING OF SOIL BIOENGINEERING APPLICATION IN POST LANDSLIDE AREA IN CILILIN VILLAGE, CILILIN SUB-DISTRICT, WEST BANDUNG REGENCY, WEST JAVA PROVINCE Utami, Dyah Nursita; Raharjo, Akhmadi Puguh
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Vol 3, No 1 (2019): Jurnal Alami
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (682.301 KB) | DOI: 10.29122/alami.v3i1.3327

Abstract

Landslides are the third most frequent disaster in Indonesia. One of these landslides occurred on March 10, 2017 in residential area of Jatiradio, Cililin Village, Cililin Sub-District, West Bandung Regency, West Java Province. Post-incident investigations have produced information regarding the characteristics of the area and recommendations for disaster mitigation. At present it is known that there are still problems left unsolved in the area that need to be mitigated. The purpose of this study is to identify those unsolved problems at the study site and formulate solutions to the problem using a soil bioengineering approach. Among all the data that need to be collected are the condition of both existing vegetation and subsurface profile on the former landslide slopes at the study site. Data from the observations were then analyzed to produce recommendations regarding the application of soil bioengineering at the study site. From this study, pine trees (Pinus merkusii) is recommended to be planted on the slopes and areas around the rock gabions. This type of vegetation has fulfilled four pre-determined criterias related to the function of slope protection and groundwater regulation for this particular area and is considered suitable to be applied to the study site.
ANALISIS KUALITAS LAHAN DI KABUPATEN PESISIR BARAT PROVINSI LAMPUNG Utami, Dyah Nursita
Jurnal Sains dan Teknologi Mitigasi Bencana Vol 14, No 2 (2019): Jurnal Sains dan Teknologi Mitigasi Bencana
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (826.291 KB) | DOI: 10.29122/jstmb.v14i2.3855

Abstract

Since 2012, Pesisir Barat district began to separate from Lampung Barat regency under UU No. 22 Tahun 2012. The new autonomous Region (DOB) which is still in the early stages of planning and utilization after the release of its parent district required a potential utilization of natural resources by considering the power of surrounding areas in order to Development progress. Proper land use planning is one of the ways of utilization of natural resources in the Pesisir Barat district through the study of land quality. The results of this land quality analysis will be known to the parameters of land quality that become excellence and limiting factors for the development of land potential in Pesisir Barat district. The parameters of land quality that will be assessed include texture of soil, soil pH, organic C, Nitrogen, potassium, phosphorus, cation-cation can be exchanged such as Ca, Mg, K, Na, cation exchange Capacity (CEC), and base saturation (KB). By knowing the boundary factor, expected improvement recommendation and land use planning in Pesisir Barat district is more appropriate to the condition and potential natural resources of the region. So as to encourage the optimization of natural resources utilization to accelerate development in the district new autonomous Region. Keywords: Land quality analysis, limiting factors, land use, optimization of natural resources AbstrakSejak tahun 2012, Kabupaten Pesisir Barat mulai memisahkan diri dari Kabupaten Lampung Barat  berdasarkan UU Nomor 22 Tahun 2012. Daerah otonomi baru (DOB) yang masih dalam tahapan awal perencanaan dan pendayagunaan setelah lepas dari kabupaten induknya diperlukan suatu usaha pendayagunaan potensi sumberdaya alam dengan mempertimbangkan kekuatan wilayah di sekitarnya dalam rangka mendorong kemajuan pembangunan. Perencanaan tata guna lahan yang tepat menjadi salah satu cara pendayagunaan potensi sumberdaya alam di Kabupaten Pesisir Barat melalui kajian kualitas lahan. Hasil kajian analisis kualitas lahan ini akan diketahui parameter-parameter kualitas lahan yang menjadi keunggulan dan faktor pembatas bagi pengembangan potensi lahan di Kabupaten Pesisir Barat. Parameter kualitas lahan yang akan dinilai antara lain tekstur tanah, pH tanah, C organik, Nitrogen, Kalium, Fosfor, kation-kation dapat ditukar seperti Ca, Mg, K, Na, Kapasitas Tukar Kation (KTK), dan Kejenuhan Basa (KB). Dengan mengetahui faktor pembatas, diharapkan rekomendasi perbaikan dan perencanaan tata guna lahan di Kabupaten Pesisir Barat lebih sesuai dengan kondisi dan potensi sumberdaya alam wilayahnya. Sehingga mampu mendorong optimalisasi pemanfaatan sumberdaya alam untuk mempercepat pembangunan di kabupaten daerah otonomi baru. Kata kunci: Analisis kualitas lahan, faktor pembatas, tata guna lahan, optimalisasi sumberdaya alam
Characteristics of Water Storage Capacity and Water Storage Efficiency of ‘Biotextile’ Growing Medium for Erosion Resistance Utami, Dyah Nursita; Kusumastuti, Etty; Sudiana, Nana; Rahayu, Budi; Hidayat, Nur; Sulistiawan, Insan Nur; Purnomo, Agus; Atang; Sittadewi, Euthalia Hanggari
Berkala Ilmiah Biologi Vol 14 No 1 (2023)
Publisher : Fakultas Biologi Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/bib.v14i1.5891

Abstract

Abstract: Biotextile is an innovation in erosion-resistant growing media technology, made from organic cocopeat supplemented with Legume Cover Crop (LCC) seeds and coated with biofertilizer. In its application, the success of biotextiles is determined, among other things, by the capacity and efficiency of water storage in the media The capacity and water storage efficiency of biotextile media will determine the success of growth in field applications. From field tests conducted on the sloping land of the Ciater reservoir cliffs, South Tangerang, it was shown that on the 4th day the LCC seeds had started to grow, on the 10th day they had grown in all biotextile cells, and at the age of 3 months the LCC plant canopy had covered almost all of the soil surface at the test field. Based on the growth test results, biotextile characterization tests have been carried out, which include measuring water content (KA), water storage capacity (KPA), and water storage efficiency (Es). Based on these test results, a biotextile characteristic test has been carried out which includes water content (KA), water storage capacity (KPA), and water storage efficiency (Es) to find out the characteristics of KPA and Es in evaluating its success and to prove the hypothesis that KPA and biotextile Es support the successful growth of land cover plants (LCC). The measurement of KA biotextile was carried out using the gravimetric method, while KPA and Es were measured using the immersion method, which was carried out in the Serpong laboratory. From the results of laboratory analysis, KA reached a range of values: 40–80%, KPA = 74.41–297.59%, and Es = 21%–75.5%. Apart from the results of plant growth and laboratory results, from a physical perspective, the performance of biotextiles can be seen in reducing the energy of rainwater blows, reducing the flow rate of surface water, and reducing soil erosion.
Co-Authors Agus Purnomo Atang Budi Rahayu, Budi Euthalia Hanggari Sittadewi Kusumastuti, Etty Nana Sudiana Nur Hidayat Raharjo, Akhmadi Puguh Sulistiawan, Insan Nur