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Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
ISSN : 25795511     EISSN : 25796097     DOI : -
Core Subject : Agriculture,
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (JPPDAS) ) is an official publication that publishes scientific papers of research results in the field of watershed management. This Journal was published primarily by Watershe Management Technology Center on April 2017. Journal scopes include are land and vegetation management, soil and water conservation, land rehabilitation, hydrology, social, economic, institutional, remote sensing and Geographic Information Systems (GIS) that support watershed management technologies.
Arjuna Subject : -
Articles 6 Documents
Search results for , issue " Vol 2, No 1 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai" : 6 Documents clear
DINAMIKA PENCAPAIAN KONSENSUS DALAM FORUM KOORDINASI PENGELOLAAN DAERAH ALIRAN SUNGAI: SUATU PEMODELAN BERBASIS AGEN (The dynamic of reaching consensus in the coordination forum of watershed management: an agent-based modeling) Irawan, Evi
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 2, No 1 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1195.884 KB) | DOI: 10.20886/jppdas.2018.2.1.45-60

Abstract

Paradigm change of watershed management towards participative management brings consequences in the involvement of stakeholders in the decision-making process. While on one hand it can increase the social legitimacy of various watershed management policies and activities, the involvement of many stakeholders on the other hand may delay the achievement of consensus and reconciliation of interests. This study aims to examine the influence of social networks built among members of the Central Java Watershed Management Coordination Forum (Forum DAS) on the achievement of consensus with regards to a watershed planning. The research method used agent-based modeling simulation combined with in-depth interview data of forum members. The simulation model was developed using Netlogo 6.02 software. The simulation results show that the structure of the established communications network at this time has not been able to facilitate in the achievement of consensus, but tends to create formation of opinion polarization.
POLA DAN EVALUASI PENGGUNAAN LAHAN DI SEMPADAN SUNGAI CINANGKA, SUB DAERAH ALIRAN SUNGAI CIMANUK HULU (Pattern and evaluation of land use in Cinangka Buffer Zone, Upper Cimanuk Sub Watershed) Widiyanto, Ary; Hani, Aditya
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 2, No 1 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1151.994 KB) | DOI: 10.20886/jppdas.2018.2.1.61-72

Abstract

In general, watershed problems are caused by two factors namely natural factors such as rainfall, slopes and soil types and human factors such as policy and socio-economic factors. This study aims to evaluate the existing land use compared to Regional Spatial Planning of Garut in the buffer zone of Cinangka River, which is part of the Upper Cimanuk sub watershed. This research is expected to contribute to the watershed management knowledge and offer an alternative model for watershed management based on dynamic socio-economic conditions.Primary data collection was conducted through field surveys and interviews to the selected farmers whose land were in the selected areas. The interviews were to find out the reasons for planting the chosen crops. An observation plot of 50 meters for each river boundary as long as 1 km, were made to evaluate the land use. Therefore, total area of observation was 100.000 m2 or 10 hectare (ha). The study area is dominated by monoculture farming, which is 62% of the total area. Other land uses include bare land and shrubs (13.2%), agroforestry (12.3%), forest trees (trees & MPTS) (11.6%), and other types of land use (1%). The use of monoculture agriculture in this area is not accordance to the Regional Spatial Plans (RTRW) of Garut Regency in 2011-2031, which allocates the area of Cinangka sub watershed as community forest cultivation.
EVALUASI LAHAN UNTUK MENILAI KINERJA SUB DAERAH ALIRAN SUNGAI RAWAKAWUK (Land evaluation to assess performance of Rawakawuk Sub Watershed) Wahyuningrum, Nining; Putra, Pamungkas Buana
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 2, No 1 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1073.711 KB) | DOI: 10.20886/jppdas.2018.2.1.1-16

Abstract

Land is an important resource in a watershed because of its position as a processor. The condition of a watershed depends on the land management and its compliance with its performance. The purpose of the research is to evaluate the performance of Rawakawuk Sub Watershed from the land aspects. Guidelines of Watershed Evaluation and Monitoring, i.e. the Regulation of Director General of Land Rehabilitation and Social Forestry or PerDirjen 04/V-Set/2009 was used to analyze parameters of Vegetation Cover Index (VCI), Land Use Suitability Index (LUSI), and Erosion Index (EI). The results showed that the study area  has 53% of pine and teak monoculture, and 20,7 % of agroforestry private forest, therefore the VCI is 73,2%. The LUSI is 93,7% which implies that 93,7% of the area is suitable to its land capability. In addition, 36,1% of the area is exposed to very severe erosion. Since the solum depth is relatively deep (>90 cm), the tolerable soil erosion is high and EI tends to be small. Around 60,3% of the area has an average EI of 71,1 which is classified as moderate. Based on the cumulative value of VCI, LUSI and EI, Rawakawuk Sub Watershed can be classified as slightly good. However, conservation practices should be applied to the very severe erosion areas.
FACTOR INFLUENCING DENSITY LEVEL OF GULLY EROSION IN KALIWUNGU WATERSHED Nugraha, Surya Sabda; Sartohadi, Junun
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 2, No 1 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1088.031 KB) | DOI: 10.20886/jppdas.2018.2.1.73-88

Abstract

Gully erosion is the most siginificant forms of land degradation. Gully distribution can indicate land degradation. Density level of gully shows the level of land degradation on a catchment. This research aims to identify the distribution of gully and to calculate density level of gully erosion in Kaliwungu Watershed. Distribution of gully and density level of gully was analyze based on land use map and landform map. In addition, analyze the characteristics of slopes, vegetation, infiltration, and land cultivation to determine the factors affecting gully erosion.The researchers was applying field survey to collect gully erosion data. Gully distribution was overlayed on land use map and landform map. Land use was delineated by interpretated aerial photograph of Kaliwungu Watershed. Aerial imagery with the support from the result of Sentinel image processing was used to observe vegetation density. Landform and slope were deliniated from Terra-SAR X DEM. Gully catchment was delineated by interpretated Terra-SAR X DEM and aerial photograph of Kaliwungu Watershed.  Analysis to determine the factors that influenced gully was done descriptively. The analysis was conducted based on the result of overlay of gully distribution on land use map and landform map. The result of this research were map of gully distribution and map of density level of gully erosion in Kaliwungu Watershed with a scale of 1: 10.000. Gully erosion formed on erosin zone to deposition zone, but there were 3 gully that formed on residual zone. There were three density classes of gully in Kaliwungu Watershed which are high, medium, and low. The process of intensive gully takes place only at the some point with intensive land cultivation or land that has been highly disturbed by human activities such as settlements. The study result shows that land use and land cultivation was the factor that influenced the formation of gully erosion.
SIMULASI MODEL DINAMIK PENGARUH LEGUME COVER CROPS (LCC) TERHADAP LIMPASAN DAN SEDIMEN DI LAHAN HUTAN TANAMAN (Dynamic model simulation of the effects of Legume Cover Crops (LCC) on runoff and sediment in plantation forest land) Supangat, Agung Budi; Sudira, Putu; Supriyo, Haryono; Poedjirahajoe, Erny
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 2, No 1 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1159.109 KB) | DOI: 10.20886/jppdas.2018.2.1.17-34

Abstract

Declining productivity of plantation forest due to low soil fertility. This condition has forced  managers to make efforts in manipulating the tree growing environment. One such effort is by introducing cover crops species from legumes (LCC), to control surface runoff, soil erosion and input nutrient into the soil. The research aims to determine the effectiveness of LCC in controlling total runoff and sedimentation in Eucalyptus pellita plantations, through dynamic model simulation. The dynamic model of STELLA version 9.0.2 was used to study water and nutrient cycles, focused on the application of LCC to reduce total runoff and sedimentation. The results showed that LCC could drop the total runoff of average 35% in the 1 - 2 years old. In the 1styear it decreased from 1,530 mm to 994 mm, while in the 2ndyear it decreased from 1,240 mm to 806 mm. The declining also occurred in the sediment content, in the 1st year it decreased from 12.20 tonnes/ha to 7.93 tonnes/ha, and the 2nd year it decreased from 6.63 tonnes/ha to 4.36 tonnes/ha. These research findings can be used by the environmental manager  to minimize potential land degradation, especially during the post-harvest until the young plantations (0-2 years old) phases.
DAYA DUKUNG LAHAN DI KAWASAN HUTAN DENGAN TUJUAN KHUSUS (KHDTK) GOMBONG (Carrying capacity of land in Forest Area for Specific Purpose (KHDTK) Gombong) Jariyah, Nur Ainun
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 2, No 1 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (879.729 KB) | DOI: 10.20886/jppdas.2018.2.1.35-44

Abstract

Population growth has an impact on increasing the need for land to fulfill peoples food, thus it may decrease in its carrying capacity. Therefore a study has been conducted to evaluate the carrying capacity of the land to meet the needs of the local community at Forest Area for Specific Purpose (KHDTK) Gombong, Kebumen District, Central Java. Secondary data collection was covering population, land area, productivity and price from agriculture, plantation, forestry, livestock and fishery, rice prices at producer level. Another secondary data collection was collected from Central Bureau of Statistics Kebumen, Forest district Service, District and villages. Data were analyzed using a descriptive quantitative method by calculating the supply and demand of land to know carrying capacity of the land. The result of this research showed that the availability land in KHDTK Gombong was 68,559.72 ha while the required land was 101,909.56 ha, thus experiencing a deficit of -33,349.84 ha. The deficit condition in KHDTK Gombong can be fulfilled from Kebumen regency that has a surplus or cooperate with other regions. This condition makes the attention of Local Government to overcome KHDTK Gombong such as increase land availability, land conversion towards other more profitable business, land intensification with new technology and land conservation.

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