Prediksi Erosi Berdasarkan Metode Universal Soil Loss Equation (Usle) Untuk Arahan Penggunaan Lahan Di Daerah Aliran Sungai Lawo

This study aims (1) to determine the ratio of the erosion value of the usle methods in the Lawo watershed (2) to plan soil and water conservation in the Lawo watershed. This research is based on mapping which is classified as non-experimental research using survey method. The erosion value was predicted using the Universal Soil Loss Equation (USLE) model. The results showed that land use in the Lawo watershed was secondary forest, plantation forest, dry land agriculture, dry land farming mixed with shrubs, shrubs, settlements and open land. The total erosion value for the USLE method is the average erosion that occurs. in the lawo river basin, namely 30948352.27 tonnes / year tonnes / year. Lawo watershed recovery plan in the form of land use patterns to reduce the rate of erosion, namely agroforestry dry land farming, while for settlements in the form of infiltration wells, enrichment of plants for plantation forest land use, refinement of bench terraces on paddy land use and terracing use accordingly the field, as well as reforestation and planting of land cover for the use of shrub land

ANALISIS POROSITAS MATERIAL KAWASAN KARST MAROS PANGKEP TAMAN NASIONAL BANTIMURUNG BULUSARAUNG BERBASIS VARIASI UKURAN BUTIR

Abstrak-Telah dilakukan penelitian tentang porositas berdasarkan variasi ukuran butir batuan kawasan Karst Maros-Pangkep. Tujuan dari penelitian ini adalah untuk mengetahui gambaran nilai porositas batuan di Kawasan Karst Maros-Pangkep berdasarkan variasi ukuran butir dan menentukan pengaruh ukuran butir terhadap porositas batuan di Kawasan Karst Maros-Pangkep. Proses dimulai dari penentuan ukuran butir menggunakan lima macam saringan/ayakan, yaitu dengan nomor 50 mesh, 30 mesh, 16mesh, 10 mesh dan 4 mesh. Porositas ditentukan dengan menggunakan metode penimbangan. Setelah perhitungan ukuran rata-rata butir didapat selanjutnya dihubungkan dengan porositas dengan metode analisis regresi. Berdasarkan perhitungan statistik diperoleh persamaan regresi linear batuan Karst Maros-Pangkep, yaitu Y=15,00-2,82X dengan R2.=0,78. Diperoleh pengaruh ukuran butir terhadap porositas batuan kawasan karst Maros-Pangkep bernilai negatif artinya ukuran butir berbanding terbalik dengan porositas batuan di kawasan karst Maros-Pangkep. Semakin kecil ukuran butir maka porositas semakin besar dan semakin besar ukuran butir porositas semakin kecil. Kata kunci : Porositas, ukuran butir, batuan karst Pangkep, batuan karst Maros  Abstrak-Research on porosity has been carried out based on variations in grain size of the Maros-Pangkep Karst area. The purpose of this study was to describe the value of rock porosity in the Maros-Pangkep Karst Region based on grain size variations and to determine the effect of grain size on rock porosity in the Maros-Pangkep Karst Region. The process starts from determining the grain size using five kinds of sieves, namely with numbers 50 mesh, 30 mesh, 16mesh, 10 mesh and 4 mesh. Porosity is determined using the weighing method. After calculating the average grain size obtained, it is then connected to the porosity by using the regression analysis method. Based on statistical calculations obtained linear regression equation Maros-Pangkep karst rock, namely Y=15.00-2.82X with R2.=0.78. The effect of grain size on the rock porosity of the Maros-Pangkep karst area is negative, meaning that the grain size is inversely proportional to the porosity of the rocks in the Maros-Pangkep karst area. The smaller the grain size, the larger the porosity and the smaller the porosity. Keywords: porosity, grain size, Pangkep karst rock, Maros karst roc

Kelembagaan Pemanfaatan Bak Penampungan Air untuk Pengembangan Pola Agroforestry di Desa Cenrana Baru Kecamatan Cenrana Kabupaten Maros

Permasalahan utama yang dihadapi Petani Agroforestry di Desa Cenrana Baru, Kecamatan Cenrana, Kabupaten Maros, yaitu (1) kekeringan lahan di musim kemarau menyebabkan tidak berkembangnya budidaya tanaman agroforestry, (2) Kebutuhan sebuah model agroforestry kebun campuran – talun untuk sumber pendapatan, bulanan, musiman dan tahunan (3) Terdapat bak penampungan air yang membutuhkan kelembagaan pengelolaan diantara anggota kelompok tani suatu hamparan lahan agroforestry menggunakan modal sosial yang terdapat pada pengelolaan sawah dan lahan agroforestry. Untuk mengatasi permasalahan diatas dilakukan penelitian aksi partisipatif melalui observasi dan diskusi terfokus. Hasil penelitian, disepakati bahwa bak penampungan air hanya untuk penyiraman tanaman agroforestry, tidak untuk pengairan lahan tanaman semusim. Pengadaan selang dan pembagian air dari kolam penampungan utama ke bak air di lahan petani dilakukan sendiri oleh masing – masing petani secara bergiliran untuk meringankan beban kerja dan tidak mengganggu kegiatan wanatani ladang setiap anggota kelompok tani pengembang agroforestry. Pola agroforestry yang disepakati adalah kebun campuran pola Alley Cropping dengan kombinasi jenis tanaman kemiri + kopi + gamal + merica. Pola agroforestry Alley Cropping dicirikan dengan petani tetap menanam tanaman semusim sambil mengembangkan agroforestry secara bertahap dalam luasan 20 x 20 m setiap tahun sebagai bentuk strategi mengatasi keterbatasan air disamping tetap terpenuhi subsistensi pangan rumah tangga petani bersangkutan

Analisis Perubahan Penutupan Lahan di Daerah Aliran Sungai Kelara Menggunakan Citra Sentinel 2

Daerah Aliran Sungai (DAS) Kelara terletak di Kabupaten Gowa dan Kabupaten Jeneponto Provinsi Sulawesi Selatan yang diduga mengalami perubahan tutupan lahan dikarenakan penggunaan lahan yang tidak sesuai dengan rencana pola ruang sehingga dapat mengakibatkan kerusakan yang berdampak pada fungsi hidrologi yang berujung terjadinya bencana alam. Perubahan penggunaan lahan dilakukan dengan menganalisis citra sentinel 2 tahun 2017 dan 2021 melalui proses digitasi on screen yang kemudian dilanjutkan dengan proses tumpang susun (overlay). Tujuan penelitian ini adalah untuk mengetahui perubahan penutupan lahan pada DAS Kelara pada tahun 2017 – 2021. Hasil penelitian menunjukkan bahwa terdapat delapan kelas penggunaan lahan di DAS Kelara yaitu hutan, lahan terbuka, pemukiman, perkebunan, pertanian lahan kering campur, sawah, tambak dan tubuh air, dan. Penutupan lahan yang mengalami penambahan luasan yaitu, pemukiman (3,79%), pertanian lahan kering campur (3,25%), sawah (0,49%), tambak (0,01%), dan tubuh air (0,33%). Penutupan lahan yang mengalami penurunan luasan yaitu hutan (1,98%), lahan terbuka, (0,70%) dan perkebunan (5,18%). Nilai matrik konfusi menunjukkan overall accuracy tertinggi pada tahun 2017 sebesar 92,23% dan terendah pada tahun 2021 sebesar 91,71%

TRANSFORMASI UMKM MELALUI PENDAMPINGAN KETERAMPILAN LITERASI DIGITAL

Penelitian ini bertujuan untuk menganalisis transformasi digital melalui  pembinaan  keterampilan literasi digital kepada UMKM "Nganre Sambal" yang merupakan rintisan kelompok perempuan pra sejahtera di Kota Makassar. Melalui pelatihan dan Focus Group Discussion (FGD) yang membahas 8 elemen literasi digital menurut Douglas A. J. Belshaw, menunjukkan bahwa UMKM "Nganre Sambal" menghadapi berbagai tantangan ketika menggunakan teknologi digital untuk memasarkan produk mereka. Tantangan utama meliputi aksesibilitas yang belum merata, perlu peningkatan keterampilan digital, dan persaingan yang ketat dalam dunia digital. Setelah melalui proses pendampingan keterampilan literasi digital, anggota UMKM "Nganre Sambal" telah berhasil mengintegrasikan pengetahuan literasi digital ke dalam operasional mereka. Proses tersebut dijelaskan menggunakan teori difusi inovasi. Artikel ini menggarisbawahi pentingnya dirumuskan kegiatan literasi digital yang berkelanjutan dan berjangka panjang untuk memastikan kesuksesan UMKM dalam menghadapi perkembangan teknologi digital yang masif

IDENTIFIKASI TEKNIK KONSERVASI TANAH DAN AIR DI DESA TABO-TABO KECAMATAN BUNGORO KABUPATEN PANGKEP

This study aims to identify and to assess the accuracy of soil and water conservation techniques applied by the community in Tabo-Tabo Village, Bungoro District, Pangkep Regency. This research was conducted from June to October 2018. The type of data collected is primary data and secondary data. Primary data was obtained by direct observation in the field in the form of surveys and interviews while secondary data collection was in the form of administrative map from BPS and land use cover map from BPKH. The results of soil and water conservation technique in TaboTabo Village, Bungoro District, Pangkep Regency were 74.3% from 35 farmers in the right category and 25.7% inappropriate category. The conservation technique used by farmers in TaboTabo Village were a vegetative technique in the form of cover crops, mixed gardens, yards and living fences, while mechanical techniques include bench terraces and flat terraces

Indikator Kinerja dan Peran Stakeholder dalam Pengelolaan Daerah Aliran Sungai (DAS) Lisu

Various community activities that have occurred in the Lisu Watershed have seemed irregular and unregulated. This can be seen in the management of the Lisu watershed, which has not been used thoroughly from policy, implementation to evaluation and monitoring in the management of the Lisu watershed. The emergence of various problems and conflicts between various interests in its management. So the purpose of this study is how to analyze collaboration and stakeholder synergy in natural resource management in the Lisu Watershed. This research was conducted with descriptive exploratory analysis method on the activities of stakeholders who will collaborate in the management of the Lisu watershed, and how to identify performance indicators. The results obtained in this study are the overlapping functions, duties and responsibilities and authority in the management of the Lisu watershed. Related stakeholders have not been based on effectiveness, namely the goals and objectives in improving the quality of the Lisu watershed, causing a conflict of interest and lack of coordination. Another obstacle faced by stakeholders in collaborating and synergy is the disagreement of some stakeholders in integrating watershed management whose management is from upstream, middle and downstream of the Lisu watershed. The recovery policy in the Lisu Watershed is needed in realizing and building integrated watershed management patterns in collaboration and stakeholder synergy. As well as the need for a change of management paradigm as well as institutional strengthening in the management of the Lisu Watershed.

ANALISIS TINGKAT KERAWANAN TANAH LONGSOR MENGGUNAKAN METODE FREKUENSI RASIO DI DAERAH ALIRAN SUNGAI BIALO

Landslide is a movement of soil with slope direction and moves it on a slide. This study aimed to predict the landslide susceptibility map by using a frequency ratio. It used seven causative factors, such as slope, curvature, land use, lithology, distance to a river, distance to lineament, and rainfall. The result showed the AUC of success rate and predicted rate produced high accuracy with 0.907 and 0.904, respectively.  According to the frequency ratio, the slope was the most influential than the other causative factors with 7.15. The landslide susceptibility divided into five classes, i.e. very low, low, moderate, high, and very high.  Landslide susceptibility with very high and high was 19%.  Moreover, classes susceptibility of very low, low, and moderate were 71%. The presentation of very high and high susceptibility is low, but it was located on an upper stream, and it will be a danger if to the downstream.

Effectiveness of Pine Stands in Control Surface Runoff

This study aims to determine the effectiveness of Pine stands in controlling surface runoff, as well as the relationship between rainfall, intensity and slope with the volume of surface runoff. This study was conducted from November 2016 to February 2017. The measurement of rainfall is done by using rainfall observatory on 40 rain events, measuring the volume of surface runoff at each rainfall event, on a plot measuring 22 m x 4 m. The runoff volume on the dense pine cover was 0.006 m3, smaller than the medium and rare pine cover, ie 0.015 m3 and 0.016 m3 respectively. This shows that pine stands can minimize the impact of rainfall, rainfall intensity, and slope on the amount of surface runoff