Pub Date : 2023-10-01DOI: 10.59465/jppdas.2023.7.1.59-76
Tri Hayatining Pamungkas, Mawiti Infantri Yekti, I. G. Adi Alit Putra
Nusa Penida is one of several tourism areas used as a mainstay by Bali Province in accommodating tourists who want to vacation in Bali. One component to support tourism is water or water availability capacity. The lack of water resources that can be utilized, especially on two islands in Nusa Penida, namely Nusa Ceningan Island and Nusa Lembongan, requires looking for alternative water sources, one of which is rainwater sources. One method of utilizing rainwater is harvesting rainwater (PAH) using the roof of the building. The most decisive components in this technique are the roof of the building and the volume of the reservoir. The analysis showed that from the existing data, the water demand on Nusa Ceningan and Nusa Lembongan Islands during the dry six months was 48,405.5 liters per year. This water requirement can be met by using rainwater harvesting, which uses a roof area of 68.54 m2, and the harvested water is accommodated with a reservoir with a capacity of 48.41 m3.
努沙彭尼达岛是巴厘岛省接待游客的主要旅游区之一。支持旅游业的一个要素是水或水供应能力。由于缺乏可利用的水资源，特别是努沙 Penida 的两个岛屿，即 Nusa Ceningan 岛和 Nusa Lembongan 岛，因此需要寻找替代水源，其中之一就是雨水资源。利用雨水的一种方法是利用建筑物屋顶收集雨水（PAH）。这项技术中最具决定性的组成部分是建筑物的屋顶和蓄水池的容积。分析表明，根据现有数据，努沙塞宁南岛和努沙伦邦安岛在干旱的六个月中每年的需水量为 48,405.5 升。这一用水需求可通过雨水收集来满足，雨水收集使用的屋顶面积为 68.54 平方米，收集的水可通过一个容量为 48.41 立方米的蓄水池来储存。
{"title":"PERENCANAAN SISTEM PEMANENAN AIR HUJAN DALAM MEMENUHI KEBUTUHAN AIR DI NUSA PENIDA (Rainwater Harvesting System Planning to Meet Water Needs in Nusa Penida)","authors":"Tri Hayatining Pamungkas, Mawiti Infantri Yekti, I. G. Adi Alit Putra","doi":"10.59465/jppdas.2023.7.1.59-76","DOIUrl":"https://doi.org/10.59465/jppdas.2023.7.1.59-76","url":null,"abstract":"Nusa Penida is one of several tourism areas used as a mainstay by Bali Province in accommodating tourists who want to vacation in Bali. One component to support tourism is water or water availability capacity. The lack of water resources that can be utilized, especially on two islands in Nusa Penida, namely Nusa Ceningan Island and Nusa Lembongan, requires looking for alternative water sources, one of which is rainwater sources. One method of utilizing rainwater is harvesting rainwater (PAH) using the roof of the building. The most decisive components in this technique are the roof of the building and the volume of the reservoir. The analysis showed that from the existing data, the water demand on Nusa Ceningan and Nusa Lembongan Islands during the dry six months was 48,405.5 liters per year. This water requirement can be met by using rainwater harvesting, which uses a roof area of 68.54 m2, and the harvested water is accommodated with a reservoir with a capacity of 48.41 m3.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139330782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.59465/jppdas.2023.7.1.23-40
Suhendra Suhendra, Geri Budianto, Halauddin Halauddin, Liza Lidiawati
Muara Bangkahulu Subdistrict is a flood-prone area in Bengkulu City, Bengkulu Province. This study aims to identify the depth of aquifers in flood-prone areas. Flood-prone areas in the Muara Bangkahulu sub-district were analyzed using the Vertical Electrical Sounding (VES) method with Schlumberger configuration of as many as 40 VES points in residential areas. Data acquisition was carried out using the Geoelectric IP Meter MAE X612-EM. The obtained data was then processed using Progress 3.0 software to get a 1D Resistivity Log cross-section. The log data was then modelled using Voxler 4 software to find an overview of the distribution of aquifers and subsurface structures in 3D. The distribution of resistivity values at depths of 2, 5, 10, 15, 30, and 40 meters using ArcGIS 10.8 are mapped to see the distribution of aquifers. The aquifers in the Muara Bangkahulu sub-district are sand and gravel with a value of 0-25 Ω.m. The intrusion of seawater influences this value. Flood-prone areas are located at shallow aquifer, namely depths of 2-5 m in the villages of Rawa Makmur, Rawamakmur Permai, and Bentiring Permai.
Muara Bangkahulu 分区是明古鲁省明古鲁市的一个洪水易发区。本研究旨在确定洪水易发区的含水层深度。采用垂直电测深（VES）方法对 Muara Bangkahulu 分区的洪水易发区进行了分析，斯伦贝谢公司在居民区配置了多达 40 个 VES 点。数据采集使用了地电 IP 计 MAE X612-EM。然后使用 Progress 3.0 软件对获得的数据进行处理，以获得一维电阻率测井截面图。然后使用 Voxler 4 软件对测井数据进行建模，以了解含水层和地下结构的三维分布概况。使用 ArcGIS 10.8 绘制了 2、5、10、15、30 和 40 米深度的电阻率值分布图，以了解含水层的分布情况。Muara Bangkahulu 分区的含水层为砂砾岩，电阻率值为 0-25 Ω.m。洪水易发区位于浅含水层，即 Rawa Makmur、Rawamakmur Permai 和 Bentiring Permai 村的 2-5 米深处。
{"title":"IDENTIFIKASI AKUIFER DI DAERAH RAWAN BANJIR DENGAN METODE VERTICAL ELECTRICAL SOUNDING DI KECAMATAN MUARA BANGKAHULU (Identification of Aquifers in Flood-Prone Areas using the Vertical Electrical Sounding Method in Muara Bangkahulu sub-district)","authors":"Suhendra Suhendra, Geri Budianto, Halauddin Halauddin, Liza Lidiawati","doi":"10.59465/jppdas.2023.7.1.23-40","DOIUrl":"https://doi.org/10.59465/jppdas.2023.7.1.23-40","url":null,"abstract":"Muara Bangkahulu Subdistrict is a flood-prone area in Bengkulu City, Bengkulu Province. This study aims to identify the depth of aquifers in flood-prone areas. Flood-prone areas in the Muara Bangkahulu sub-district were analyzed using the Vertical Electrical Sounding (VES) method with Schlumberger configuration of as many as 40 VES points in residential areas. Data acquisition was carried out using the Geoelectric IP Meter MAE X612-EM. The obtained data was then processed using Progress 3.0 software to get a 1D Resistivity Log cross-section. The log data was then modelled using Voxler 4 software to find an overview of the distribution of aquifers and subsurface structures in 3D. The distribution of resistivity values at depths of 2, 5, 10, 15, 30, and 40 meters using ArcGIS 10.8 are mapped to see the distribution of aquifers. The aquifers in the Muara Bangkahulu sub-district are sand and gravel with a value of 0-25 Ω.m. The intrusion of seawater influences this value. Flood-prone areas are located at shallow aquifer, namely depths of 2-5 m in the villages of Rawa Makmur, Rawamakmur Permai, and Bentiring Permai.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139330271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.59465/jppdas.2023.7.1.1-22
S. Latifah, Eni Hidayati, Diah Permata Sari, Kornelia Webliana B
Soil erosion is a significant threat to land sustainability and productivity in mountainous areas. Erosion can affect food security and land vulnerability to climate change. This study was conducted to assess the potential erosion and Erosion Hazard Level (TBE) in four types of land management involving the community in Karang Sidemen Village using the Revised Universal Soil Loss Equation (RUSLE) method. The results showed that for each slope class, the Botanical Forest Park (Tahura) Nuraksa Utilization Zone had the lowest potential erosion value, followed by Community Forest (HKm) and Hortipark Tastura. Forest Areas with Special Purpose (KHDTK) Rarung has the highest potential erosion value in all slope classes. For all slope classes, TBE in the Tahura Nuraksa is considered low-level. Erosion Hazard Levels in Hortipark Tastura, KHDTK Rarung, and HKm are dominated by the moderate category. There were significant high and very high TBE in KHDTK Rarung. Soil erodibility values for all types are low. Potential erosion and TBE in the four management types are strongly influenced by slope and vegetation factors.
{"title":"ESTIMASI TINGKAT BAHAYA EROSI (TBE) PADA EMPAT TIPE PENGELOLAAN LAHAN DI DESA KARANG SIDEMEN, LOMBOK (Erosion Hazard Level Estimation of Four Land Use Management Types in Karang Sidemen Village, Lombok)","authors":"S. Latifah, Eni Hidayati, Diah Permata Sari, Kornelia Webliana B","doi":"10.59465/jppdas.2023.7.1.1-22","DOIUrl":"https://doi.org/10.59465/jppdas.2023.7.1.1-22","url":null,"abstract":"Soil erosion is a significant threat to land sustainability and productivity in mountainous areas. Erosion can affect food security and land vulnerability to climate change. This study was conducted to assess the potential erosion and Erosion Hazard Level (TBE) in four types of land management involving the community in Karang Sidemen Village using the Revised Universal Soil Loss Equation (RUSLE) method. The results showed that for each slope class, the Botanical Forest Park (Tahura) Nuraksa Utilization Zone had the lowest potential erosion value, followed by Community Forest (HKm) and Hortipark Tastura. Forest Areas with Special Purpose (KHDTK) Rarung has the highest potential erosion value in all slope classes. For all slope classes, TBE in the Tahura Nuraksa is considered low-level. Erosion Hazard Levels in Hortipark Tastura, KHDTK Rarung, and HKm are dominated by the moderate category. There were significant high and very high TBE in KHDTK Rarung. Soil erodibility values for all types are low. Potential erosion and TBE in the four management types are strongly influenced by slope and vegetation factors.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139325331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.59465/jppdas.2023.7.1.77-88
Badariah Badariah, M. S. Jailani, Sarah Fiebrina Heraningsih
Mercury and iron are toxic heavy metals that often enter the waters through anthropogenic activities. The Batanghari River is one of the rivers affected by heavy metals. This study aims to remove mercury and iron from river water by using an adsorbent from egg shells. The treatment used was direct contact through stirring with variations of 45 minutes, 90 minutes, and 135 minutes. The doses of eggshell powder used were 1 grams, 5 grams, 10 grams, and 15 grams. The optimal removal efficiency is 100% for mercury and 89.54% for iron. The best adsorbent dose is 5 grams for mercury and 10 grams for iron and the best stirring speed is 135 minutes on both types of metals. The results of this study found that the removal of mercury and iron using eggshell powder is an easy, cheap, and effective process to implement.
{"title":"PENYISIHAN MERKURI DAN BESI DARI AIR SUNGAI MENGGUNAKAN BUBUK CANGKANG TELUR (Mercury and Iron Removal from River Water Using Eggshell Powder)","authors":"Badariah Badariah, M. S. Jailani, Sarah Fiebrina Heraningsih","doi":"10.59465/jppdas.2023.7.1.77-88","DOIUrl":"https://doi.org/10.59465/jppdas.2023.7.1.77-88","url":null,"abstract":"Mercury and iron are toxic heavy metals that often enter the waters through anthropogenic activities. The Batanghari River is one of the rivers affected by heavy metals. This study aims to remove mercury and iron from river water by using an adsorbent from egg shells. The treatment used was direct contact through stirring with variations of 45 minutes, 90 minutes, and 135 minutes. The doses of eggshell powder used were 1 grams, 5 grams, 10 grams, and 15 grams. The optimal removal efficiency is 100% for mercury and 89.54% for iron. The best adsorbent dose is 5 grams for mercury and 10 grams for iron and the best stirring speed is 135 minutes on both types of metals. The results of this study found that the removal of mercury and iron using eggshell powder is an easy, cheap, and effective process to implement.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A continuous land use change in a watershed will affect the hydrological characteristics of the watershed. The Batang Tabir watershed has experienced a decrease in its carrying capacity shown by an increase in the frequency of flooding and the area of flood inundation. This study analyzes the land use changes in the Batang Tabir watershed, Merangin Regency, Jambi Province. The data used are DEM, topographic maps, river network maps, and Landsat imagery. Analysis of land use change used the Maximum Likelihood Classification (MLC) and the accuracy of image interpretation was carried out through the Kappa accuracy test. The land use prediction using the ANN model. The results showed that the rate of land use change increased in secondary forests, built-up areas, agriculture, and open areas; primary forests, paddy fields, and shrubs continued to decline. It is predicted in the year 2030, the trend will be the same; the built-up areas, agriculture, and secondary forests will increase, while primary forests, paddy fields, shrubs, and open areas will decrease.
{"title":"ANALISIS PERUBAHAN PENGGUNAAN LAHAN DI DAS BATANG TABIR KABUPATEN MERANGIN, PROVINSI JAMBI (Land Use Change Analysis in Batang Tabir Watershed Merangin Regency, Jambi Province)","authors":"Wirdatul Awaliyah Haryani, Dwi Putro Tejo Baskoro, Yayat Hidayat","doi":"10.59465/jppdas.2023.7.1.89-104","DOIUrl":"https://doi.org/10.59465/jppdas.2023.7.1.89-104","url":null,"abstract":"A continuous land use change in a watershed will affect the hydrological characteristics of the watershed. The Batang Tabir watershed has experienced a decrease in its carrying capacity shown by an increase in the frequency of flooding and the area of flood inundation. This study analyzes the land use changes in the Batang Tabir watershed, Merangin Regency, Jambi Province. The data used are DEM, topographic maps, river network maps, and Landsat imagery. Analysis of land use change used the Maximum Likelihood Classification (MLC) and the accuracy of image interpretation was carried out through the Kappa accuracy test. The land use prediction using the ANN model. The results showed that the rate of land use change increased in secondary forests, built-up areas, agriculture, and open areas; primary forests, paddy fields, and shrubs continued to decline. It is predicted in the year 2030, the trend will be the same; the built-up areas, agriculture, and secondary forests will increase, while primary forests, paddy fields, shrubs, and open areas will decrease.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.20886/jppdas.2022.6.2.111-124
E. Nugrahanto, S. Suprayogi, M. Hadi, R. Rahmadwiati
Keduang Sub Watershed was an area prone to flooding. This happens because of the varied land cover followed by low forest cover. This circumstance leads to an increase in runoff which has the potential to become flooded. This study aims to analyze the planned flood discharge in the Keduang Sub Watershed with several return periods. The study was conducted using secondary data analysis in 2007-2018. Rainfall analysis was performed by several methods, namely normal method, normal log, pearson III log, and gumbel and tested with chi square and kolmogorov smirnov tests. Planned flood discharge analysis was using the Nakayasu synthetic unit hydrograph method. Results showed that the rainfall analysis chosen is normal method. The planned flood discharge obtained that the maximum discharge of the 2-yearly return period was 1,375.20 m3/s, the 5-yearly return period was 1,724.92 m3/s, the 10-yearly return period was 1,908.10 m3/s, the 20-yearly return period was 2,057.97 m3/s, the 25-yearly return period was 2,087 m3/s, the 50-yearly return period of 2,228.67 m3/s, the 100-yearly return period of 2,345.24 m3/s, and the 1000-yearly return period of 2,661.64 m3/s. Flood discharges are increasing in the larger return period, and the largest flood discharge occurred in the 1000-yearly return period. The results of this study are expected to be used in watershed planning and management for flood disaster mitigation in Keduang Sub Watershed.
{"title":"ANALISIS DEBIT BANJIR RANCANGAN DENGAN METODE HIDROGRAF SATUAN SINTETIS NAKAYASU DI SUB DAS KEDUANG (Analysis of planned flood discharge using the Nakayasu synthetic unit hydrograph in Keduang Sub Watershed)","authors":"E. Nugrahanto, S. Suprayogi, M. Hadi, R. Rahmadwiati","doi":"10.20886/jppdas.2022.6.2.111-124","DOIUrl":"https://doi.org/10.20886/jppdas.2022.6.2.111-124","url":null,"abstract":"Keduang Sub Watershed was an area prone to flooding. This happens because of the varied land cover followed by low forest cover. This circumstance leads to an increase in runoff which has the potential to become flooded. This study aims to analyze the planned flood discharge in the Keduang Sub Watershed with several return periods. The study was conducted using secondary data analysis in 2007-2018. Rainfall analysis was performed by several methods, namely normal method, normal log, pearson III log, and gumbel and tested with chi square and kolmogorov smirnov tests. Planned flood discharge analysis was using the Nakayasu synthetic unit hydrograph method. Results showed that the rainfall analysis chosen is normal method. The planned flood discharge obtained that the maximum discharge of the 2-yearly return period was 1,375.20 m3/s, the 5-yearly return period was 1,724.92 m3/s, the 10-yearly return period was 1,908.10 m3/s, the 20-yearly return period was 2,057.97 m3/s, the 25-yearly return period was 2,087 m3/s, the 50-yearly return period of 2,228.67 m3/s, the 100-yearly return period of 2,345.24 m3/s, and the 1000-yearly return period of 2,661.64 m3/s. Flood discharges are increasing in the larger return period, and the largest flood discharge occurred in the 1000-yearly return period. The results of this study are expected to be used in watershed planning and management for flood disaster mitigation in Keduang Sub Watershed.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116451448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.20886/jppdas.2022.6.2.179-198
Firdha Nurhikmah, Mery Selintung, S. Rauf
Makassar City is one of the densely populated cities with various industrial activities. Among the 15 sub-districts in the Makassar City area, eight of them are crossed by the Tallo River. This study aims to analyze the level of spread of pollution and the water quality status of the water at the Tallo River using the parameters of temperature, TSS, pH, DO, BOD, and COD. The research was conducted by delimiting and dividing the research area into 3 river segments based on different types of land use. Sampling of Tallo River water in this study used SNI 6989.57:2008. The water quality parameters were tested in the field and in the laboratory. From the results of this study, based on the standard criteria for class II PP No. 82 of 2001, the water quality of the Tallo River at the research site in terms of physical parameters, the temperature value meets the quality criteria, while the TSS value at several points does not meet the quality standard criteria. In terms of chemical parameters, the pH and DO values meet the quality criteria, while the BOD and COD values does not. The water quality status of the Tallo River is then calculated using the Pollution Index method. Overall, it is categorized as lightly polluted. If broken down per segment, the distribution of water pollution levels in the Tallo River shows a fluctuating pattern, tending to increase at the first segment test point, decrease at the segment 2 test point, and increase again at the last segment test point.
{"title":"ANALISIS TINGKAT PENYEBARAN PENCEMARAN SUNGAI TALLO DENGAN SISTEM INFORMASI GEOGRAFIS (SIG) (Analysis of the Pollution Distribution Level of the Tallo River using Geographic Information Systems (GIS))","authors":"Firdha Nurhikmah, Mery Selintung, S. Rauf","doi":"10.20886/jppdas.2022.6.2.179-198","DOIUrl":"https://doi.org/10.20886/jppdas.2022.6.2.179-198","url":null,"abstract":"Makassar City is one of the densely populated cities with various industrial activities. Among the 15 sub-districts in the Makassar City area, eight of them are crossed by the Tallo River. This study aims to analyze the level of spread of pollution and the water quality status of the water at the Tallo River using the parameters of temperature, TSS, pH, DO, BOD, and COD. The research was conducted by delimiting and dividing the research area into 3 river segments based on different types of land use. Sampling of Tallo River water in this study used SNI 6989.57:2008. The water quality parameters were tested in the field and in the laboratory. From the results of this study, based on the standard criteria for class II PP No. 82 of 2001, the water quality of the Tallo River at the research site in terms of physical parameters, the temperature value meets the quality criteria, while the TSS value at several points does not meet the quality standard criteria. In terms of chemical parameters, the pH and DO values meet the quality criteria, while the BOD and COD values does not. The water quality status of the Tallo River is then calculated using the Pollution Index method. Overall, it is categorized as lightly polluted. If broken down per segment, the distribution of water pollution levels in the Tallo River shows a fluctuating pattern, tending to increase at the first segment test point, decrease at the segment 2 test point, and increase again at the last segment test point.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128206122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.20886/jppdas.2022.6.2.125-140
W. Wiyanti, K. Susila, R. Suyarto, M. Saifulloh
The Unda Watershed is categorized as the priority watershed, which part of its area is degraded land. The condition of land cover with the dominance of low-density vegetation has implications for low infiltration and water absorption capacity, so that it has the potential to increase surface runoff. This study aims to identify the potential for water absorption as the basis for watershed management planning. The method used in this study is scoring with four parameters, namely soil type, land use, slope, and rainfall. Spatial data analysis uses Geographic Information System (GIS). The formulation of recommendations for watershed management activities is carried out descriptively, based on the findings of the analysis of water absorption potential. The results showed that the water recharge conditions in the study area were classified as good (22.54%), very critical (18.20%), normal (17.92%), and less critical (7.99%). The recommended watershed management is periodic reforestation, construction of bench/traditional terraces, construction of infiltration wells/biopori holes in the residential areas, and synergistic integration of the roles of watershed institutions from upstream to downstream.
{"title":"ANALISIS SPASIAL POTENSI RESAPAN AIR UNTUK MENDUKUNG PENGELOLAAN DAERAH ALIRAN SUNGAI (DAS) UNDA PROVINSI BALI (Spatial Analysis of Water Infiltration Potential to Support The Management of Unda Watershed at Bali Province)","authors":"W. Wiyanti, K. Susila, R. Suyarto, M. Saifulloh","doi":"10.20886/jppdas.2022.6.2.125-140","DOIUrl":"https://doi.org/10.20886/jppdas.2022.6.2.125-140","url":null,"abstract":"The Unda Watershed is categorized as the priority watershed, which part of its area is degraded land. The condition of land cover with the dominance of low-density vegetation has implications for low infiltration and water absorption capacity, so that it has the potential to increase surface runoff. This study aims to identify the potential for water absorption as the basis for watershed management planning. The method used in this study is scoring with four parameters, namely soil type, land use, slope, and rainfall. Spatial data analysis uses Geographic Information System (GIS). The formulation of recommendations for watershed management activities is carried out descriptively, based on the findings of the analysis of water absorption potential. The results showed that the water recharge conditions in the study area were classified as good (22.54%), very critical (18.20%), normal (17.92%), and less critical (7.99%). The recommended watershed management is periodic reforestation, construction of bench/traditional terraces, construction of infiltration wells/biopori holes in the residential areas, and synergistic integration of the roles of watershed institutions from upstream to downstream.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128135722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.20886/jppdas.2022.6.2.141-160
Jaka Suyana, Wisnu Krismonanto, E. Muliawati, H. Widijanto, S. Hartati
Java island, which has a wet tropical climate, has a variety of vegetation stands. This study examines the characteristics of vegetation, nutrient levels of N, and soil organic carbon (SOC) under forest stands of Mount-Merbabu National Park (Pine/ Pinus merkusii, Puspa/ Schima noronhae theaceae, Acacia/ Acacia decurren fabaceae, Bintamin/Cupressus sp, and Mixed) and dry field at a soil depth of 0-30 cm (0-10, 10-20, 20-30cm). Observations the characteristics of vegetation were made by Observing Plot Units measuring 50 m x 50 m with 3 replications, while the observations of N nutrients and SOC included: total-N, Organic-C, and bulk density soil with 3 replications as well. The research data were analyzed descriptively, followed by the F-Test and DMRT Test at 5% level. The results showed that the forest stands of Mount-Merbabu National Park has the highest species density value in Puspa forest stand, followed by Mixed, Pine, Acacia, and Bintamin. Soil tota-N and Organic-C content decreased with the increasing soil depth. The highest soil total-N content in the depth of 0-10 cm was in the Puspa forest stand (1.34%), while Acacia is 0.74%, and dry field is 0.34%. The highest of soil organic-C content was in the Puspa forest stand (9.53%), the lowest was Pine (2.85%) and dry field (2.12%). Puspa (Schima noronhae theaceae) can be recommended as a good type of reforestation plant.
{"title":"KARAKTERISTIK VEGETASI, HARA NITROGEN DAN KARBON ORGANIK TANAH PADA TEGAKAN HUTAN TAMAN NASIONAL GUNUNG-MERBABU DAN TEGALAN (The Characteristics of Vegetation, Soil Nutrients of Nitrogen and Soil Organik Carbon at Forest Stands of Mount-Merbabu National Park and Dry Field)","authors":"Jaka Suyana, Wisnu Krismonanto, E. Muliawati, H. Widijanto, S. Hartati","doi":"10.20886/jppdas.2022.6.2.141-160","DOIUrl":"https://doi.org/10.20886/jppdas.2022.6.2.141-160","url":null,"abstract":"Java island, which has a wet tropical climate, has a variety of vegetation stands. This study examines the characteristics of vegetation, nutrient levels of N, and soil organic carbon (SOC) under forest stands of Mount-Merbabu National Park (Pine/ Pinus merkusii, Puspa/ Schima noronhae theaceae, Acacia/ Acacia decurren fabaceae, Bintamin/Cupressus sp, and Mixed) and dry field at a soil depth of 0-30 cm (0-10, 10-20, 20-30cm). Observations the characteristics of vegetation were made by Observing Plot Units measuring 50 m x 50 m with 3 replications, while the observations of N nutrients and SOC included: total-N, Organic-C, and bulk density soil with 3 replications as well. The research data were analyzed descriptively, followed by the F-Test and DMRT Test at 5% level. The results showed that the forest stands of Mount-Merbabu National Park has the highest species density value in Puspa forest stand, followed by Mixed, Pine, Acacia, and Bintamin. Soil tota-N and Organic-C content decreased with the increasing soil depth. The highest soil total-N content in the depth of 0-10 cm was in the Puspa forest stand (1.34%), while Acacia is 0.74%, and dry field is 0.34%. The highest of soil organic-C content was in the Puspa forest stand (9.53%), the lowest was Pine (2.85%) and dry field (2.12%). Puspa (Schima noronhae theaceae) can be recommended as a good type of reforestation plant.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127561255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01DOI: 10.20886/jppdas.2022.6.2.161-178
Davik Davik, L. Rachman, Y. Hidayat, I. Ridwansyah
The Cirasea sub-watershed is one of the sub-watersheds that has an important role in the management of the Upper Citarum watershed. The decline in land use has an impact on the hydrological system of the watershed, which is caused by changes in land use. The land-use change is determined by analyzing the results of the classification using the Maximum Likelihood Classification (MLC) algorithm in QGIS software. Land use classification using Landsat Image 2009-2019. The classification results include forest, secondary forest, built-up areas, open land, plantations, dryland farming, rice fields, shrubs, and water bodies. The accuracy test using the Kappa Index reached 85.15% or almost perfect. The land use classification that occurs shows changes in the area between 2009 and 2019. The land that has decreased is 1,437.13 ha of forest, 1,336.21 ha of rice fields, 367.83 ha of secondary forest, and 94,148 ha of dryland farming. Meanwhile, land that has increased is 1,476.69 ha of open land, 1,056.39 ha of built-up areas, 463.63 ha of shrubs, 235 ha of plantations, and 3.07 ha of water bodies.
{"title":"DINAMIKA PERUBAHAN PENGGUNAAN LAHAN DI SUB DAS CIRASEA (DAS CITARUM HULU) (The Dynamics of Land Use Change in The Cirasea Sub-Watershed (Citarum Hulu Watershed))","authors":"Davik Davik, L. Rachman, Y. Hidayat, I. Ridwansyah","doi":"10.20886/jppdas.2022.6.2.161-178","DOIUrl":"https://doi.org/10.20886/jppdas.2022.6.2.161-178","url":null,"abstract":"The Cirasea sub-watershed is one of the sub-watersheds that has an important role in the management of the Upper Citarum watershed. The decline in land use has an impact on the hydrological system of the watershed, which is caused by changes in land use. The land-use change is determined by analyzing the results of the classification using the Maximum Likelihood Classification (MLC) algorithm in QGIS software. Land use classification using Landsat Image 2009-2019. The classification results include forest, secondary forest, built-up areas, open land, plantations, dryland farming, rice fields, shrubs, and water bodies. The accuracy test using the Kappa Index reached 85.15% or almost perfect. The land use classification that occurs shows changes in the area between 2009 and 2019. The land that has decreased is 1,437.13 ha of forest, 1,336.21 ha of rice fields, 367.83 ha of secondary forest, and 94,148 ha of dryland farming. Meanwhile, land that has increased is 1,476.69 ha of open land, 1,056.39 ha of built-up areas, 463.63 ha of shrubs, 235 ha of plantations, and 3.07 ha of water bodies.","PeriodicalId":187244,"journal":{"name":"Jurnal Penelitian Pengelolaan Daerah Aliran Sungai","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122746847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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