Garuda - Garba Rujukan Digital

p-Index From 2020 - 2025

0.947

P-Index

This Author published in this journals

All Journal Jurnal Hutan dan Masyarakat PERENNIAL Jurnal EBONI Jurnal Penelitian Kehutanan Wallacea Journal of Mestika Nusantara Satu Community Services

Usman Arsyad

Fakultas Kehutanan Universitas Hasanuddin

Author-ID : 2487597

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Health Professions

Published : 14 Documents Claim Missing Document

Claim Missing Document

Articles

1 2

ANALISIS TINGKAT KERAWANAN TANAH LONGSOR MENGGUNAKAN METODE FREKUENSI RASIO DI DAERAH ALIRAN SUNGAI BIALO Nurul Fadilah; Usman Arsyad; Andang Suryana Soma
PERENNIAL Vol. 15 No. 1 (2019)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v15i1.6317

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.

Kesesuaian dan Arahan Penggunaan Lahan Berdasarkan Rencana Pola Ruang Wilayah di Hulu Daerah Aliran Sungai Kelara Usman Arsyad; Andang Suryana Soma; Wahyuni Wahyuni; Tita Rahayu Arief
Jurnal Hutan dan Masyarakat VOLUME 9 NOMOR 2, DESEMBER 2017
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

This study aimed to analyze the compatibility between the land cover spatial pattern plan and determine the direction of land use in the event of a discrepancy. This research was conducted on the Kelara Upstream Watershed located in gowa and jeneponto using land cover maps generated from landsat imagery interpretation 8. Then overlay to map the spatial pattern plan. Then determined the order of land use is done when there is a discrepancy between the results of the overlay with maps of land cover spatial pattern plan. The result showed that 41,05% of the total area of the Kelara Upstream Watershed of 28.185,68 ha a land use form of a orchards. After overlay discovered discrepancy land cover maps with maps of spatial pattern plan. Based on a map spatial pattern plan that should in reality the field is man made forest, orchards, dryland agriculture and rice field. According to these condition the specified order of land use that is Hkm (Community Forest) with agroforestry and Agroforestry Systems. Rice field In the Protected and Production forest order to intensification land use and plantations forest, orchards and dry land agriculture order to Community Forest with agroforestry systems . In the area of cultivation the land use rice field, orchards and dryland agriculture order to agroforestry systems.

Identifikasi Daerah Resapan Air di Sub Daerah Aliran Sungai Malino Hulu Daerah Aliran Sungai Jeneberang Kabupaten Gowa Wahyuni Wahyuni; Usman Arsyad; Budirman Bachtiar; Muhammad Irfan
Jurnal Hutan dan Masyarakat VOLUME 9 NOMOR 2, DESEMBER 2017
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

Population increase encourages people to change land use in Malino sub watershed. The forest area converted into non-forest areas such as agricultural or settlements. This study aims to determine the status and potential of water absorbtion region. This research was conducted in the Malino sub watershed maps using land units derived from overlapping maps of slope, soil type, rainfall and land use. Moreover, the determination of the water absorbtion region refer to the Technical Plan for Forest and Soil rehabilitation - basin. The results showed that up to 27,05% of the total Malino Sub Watershed is critical condition, normal condition as much as 49,70% and a good conditions as much as 23.25%. The Malino sub watershed still good potential to absorb water. In natural conditions, the use of land as dry bush agriculture to intervene it is advisable to agroforestry or timber planted with long lasting in order to be a good absorbtion region, while for normal condition advised to planting of agroforestry with pattern alley cropping.

Karakteristik Tanah Longsor di Daerah Aliran Sungai Tangka Usman Arsyad; Roland Alexander Barkey; Wahyuni Wahyuni; Karla Kembongallo Matandung
Jurnal Hutan dan Masyarakat VOLUME 10 NOMOR 1, JULI 2018
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

Landslides occur as a result of ground movement on steep slopes, and the high humidity (moisture), and the sparse vegetation (open land). The Local conditions is an interrelated components. The process of landslides can be explained that the water soak into the soil will add weight to the ground. If the water penetrates the soil acts as a watertight sliding plane, the ground becomes slippery and soil weathering on it will move to follow the slope. This study aims to determine the type of landslide, landslide characteristics and landslides causing factors. This research was conducted in September 2015 in Watershed Tangka. The study consisted of three stages, namely the determination of the coordinates of the location of the landslide, landslide determining the location of the sample, the determination of the type of landslide, slope measurements, measurements of the dimensions of landslide and infiltration. Research results obtained are the coordinates of the location of as many as 17 points landslide, landslide types of translation and rotation, land cover and soil texture. There is no difference in the type of soil, infiltration rate, vegetation, geologi, slope and rainfall in both types of landslide are found.

Pola Penggunaan Lahan Berdasarkan Kelas Kemampuan Lahan di Sub-sub DAS Kunisi Hulu DAS Jeneberang Kabupaten Gowa Wahyuni wahyuni; Usman Arsyad; Anwar Umar; Reza Ashari Wirawan
Jurnal Hutan dan Masyarakat VOLUME 10 NOMOR 1, JULI 2018
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

The research aims to determine the extent of land use suitability with land capability in Kunisi subs watershed of Jeneberang’s upstream watershed. This research is expected to provide guidelines and consideration for related institution in conducting socialitation and enlightment in the field of soil conservation for farmers at Manimbahoi and Bilanrengi Village of Gowa regency. The method used in this study was image analysis by using software GIS and field observations conducted in Kunisi subs watershed of Jeneberang’s upstream watershed. The research was carried from December 2014 to January 2015. The results showed that the uses of land in the subs watershed of Kunisi were for forest, gardens, rice fields, and shrubs with various level of land capability qualification IIIE, IIIb, IIIk, IVe, IVl, Vp, VIl, and VIIl. In the land unit found in the field there was mismatch land capability and land use. Such discrepancy can be resolved by restoring the function of land use based on its relevance and implement appropriate soil conservation techniques based on land capability classes

Indikator Kinerja dan Peran Stakeholder dalam Pengelolaan Daerah Aliran Sungai (DAS) Lisu Yulsan Demma Semu; Usman Arsyad; Anwar Umar
Jurnal Hutan dan Masyarakat VOLUME 10 NOMOR 2, DESEMBER 2018
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

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.

Simulasi Skenario Penutupan Lahan untuk Melihat Kondisi Hidrologi di Das Lisu, Kabupaten Barru Samsul Labaco; Usman Arsyad; Anwar Umar
Jurnal Hutan dan Masyarakat VOLUME 11 NOMOR 1, JULI 2019
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

The disruption of hydrological cycle will reduce watershed's ability to store water, so that discharge in dry season decreases and discharge in rainy season increases. These problems are caused by changes in land cover from forested land to non-forested. This study aims to develop a scenario for land cover planning that should be applied in the Lisu Watershed, Barru Regency. This study is mapping based on non-experimental research. The data obtained were analyzed spatially by overlay method. The Soil Water Assessment Tool (SWAT) model is used in preparation of land cover planning scenarios to predict hydrological conditions. The results showed that scenario 2, namely land cover planning based on the district space map pattern is the best scenario. Addition of forest area to 61.60% resulting in the lowest yield of 3461.54 mm/year and 1519.53 mm/year. While the infiltration value produced is the highest infiltration value, which is 2299.20 mm/year.

Kualitas Air Sungai pada Berbagai Tipe Penutupan Lahan pada Sub-sub DAS di DAS Latuppa Fauziyah Abidin; Syamsuddin Millang; Usman Arsyad
Jurnal Hutan dan Masyarakat VOLUME 11 NOMOR 1, JULI 2019
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

Water has an important role in life. The use of water in various activities must be based on water quality which is influenced by various aspects, one of it is land cover. This study aims to determine water quality, water quality standards and the effect of land cover on water. This study took samples at six points to determine the physical and chemical quality of water. The results showed that the chemical and physical quality of water in the Latuppa watershed still met water quality standards when there was no rain. Parameters that did not meet when rain occurred in the form of turbidity, TSS, and BOD in the river water of the Latuppa watershed. Water quality of the Siguntu Sub-watershed and the Mangkaluku Sub-watershed in the Latuppa River Basin is still relatively good for the use of raw water for drinking water. The water quality in the Latuppa watershed which is covered by forest land (Siguntu Sub-watershed and Mangkaluku Sub-watershed) is better than non-forested (Rantenase Sub-watershed).

Effect of Land Cover Change on Discharge in Pangkajene Watershed Rizki Amaliah; Usman Arsyad; Samuel A Paembonan
Jurnal Hutan dan Masyarakat VOLUME 12 NOMOR 1, JULI 2020
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

Land cover changes that occur impact on the hydrological conditions in a watershed. The hydrological condition referred to as the output quantity of the watershed is discharge which describes the quantity of water. This study aims to determine the effect of land cover change on streamflow in the Pangkajene Watershed. The results showed that there was a decrease in average peak discharge in January of 213.73 m3/s to 95.79 m3/s in the same month in 2017. Land cover changes that occurred were mixed dryland farming of bushes into paddy fields, shrubs, and settlements while forests was experienced a slight change to open land by 0.69 ha. The increase in the area of paddy fields and shrubs as large as it causes the average discharge to decrease. A decrease in the average monthly discharge in the Pangkajene watershed due to rainfall on its way into the rice irrigation water experienced process begin from, is accommodated, evaporates, so that the flow up to the river becomes small. In addition, rainfall in 2009 which is the input of the Pangkajene watershed is higher than in 2017.

Prediksi Erosi Berdasarkan Metode Universal Soil Loss Equation (Usle) Untuk Arahan Penggunaan Lahan Di Daerah Aliran Sungai Lawo Nurul Apriani; Usman Arsyad; Baharuddin Mappangaja
Jurnal Hutan dan Masyarakat VOLUME 13 NOMOR 1, JULI 2021
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

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.

Co-Authors Adelheith Mangatta Ahmad Rifqi Makkasau Anriana anriana Anwar Umar Anwar Umar Anwar Umar Baharuddin Mappangaja Beta Putranto Budirman Bachtiar Fauziyah Abidin Hasanuddin Molo Hasnawir Hasnawir Hasnawir Karla Kembongallo Matandung Misto Misto Muhammad Irfan Nur Aeni Nurul Apriani Nurul Fadilah Nurul Haerani Reza Ashari Wirawan Rizki Amaliah Roland Alexander Barkey Samsul Labaco Samuel A. Paembonan Soma, Andang Suryana Syaifullah Rafrin Syamsuddin Millang Tita Rahayu Arief Wahyudi Isnan Wahyullah Wahyullah Wahyuni Wahyuni Wahyuni wahyuni Wahyuni Wahyuni Wahyuni Wahyuni wahyuni wahyuni Yulsan Demma Semu

Title

Found 14 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 14 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 14 Documents
Search