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All Journal Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Jurnal Penelitian Hutan dan Konservasi Alam Forum Geografi
Agus Wuryanta, Agus
Balai Penelitian Teknologi Kehutanan Pengelolaan Daerah Aliran Sungai
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Journal : forum geografi

 1 
Study on Species Diversity and Stand Structure in Meru Betiri National Park Riyanto, Heru Dwi; Wuryanta, Agus
Forum Geografi Vol 29, No 1 (2015): Forum Geografi
Publisher : Forum Geografi

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Abstract

National parks are forest ecosystems that contain biotic and abiotic resources. Biodiversity is the data and information necessary to understand the degree of loss of species diversity and formulate a sustainable alternative of decline in these resources. The research objective is to study the reciprocal relationship between elevation and habitat of a species in an ecosystem. Research conducted at the National Park (TN) Meru Betiri. The results show that there are spatial variabilities of the species diversity based on the elevation in the study area. Elevation is inversely proportional to species diversity index, the higher the elevation, the species diversity index tends to decline, but the index of the importance of endemic species have increased. Group stand structure and species composition is influenced by the level of elevation with their own environment.
Water Storage Index Estimation using Geographic Information System Wuryanta, Agus; Murtiono, Ugro Hari
Forum Geografi Vol 28, No 1 (2014)
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The study aims to estimate water storage index (IPA) of six sub watersheds (Panjang, Rengas, Legi, Galeh, Parat, and Sraten) in the cachment area of Rawapening lake by using Geographic Information System. Water storage index can be calculated from average discharge (m3) devided by water requirement (m3) for each land cover/land use. Landuse information is obtained from Indonesian Topographic Map scale of 1:25.000 as updated by using SPOT image (2006), while surface water availability data was obtained from the ministry of public works. The results indicate that 1) IPA of Panjang Subwatershed was categorized as good condition with an index value of 1,49; 2)IPA of Rengas and Legi sub watersheds were categorized as moderate condition with index value 0,76 and 0,55; 3) IPA of Galeh, Parat, and Sraten sub watersheds was categorized as bad with index value of 0,3, 0,15, and 0,33, this watershed need to be improved especially an effective water resources plan, allocating and distributing of water according to priority establishment.
Radar Data for Identifying the Characteristics of Tropical Forest Stands Wuryanta, Agus
Forum Geografi Vol 30, No 1 (2016): July 2016
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Radar is one of remote sensing technology which utilizes active electromagnetic energy and are able to provide information about the characteristics of forest stand. This study utilized JERS-1 and ERS-1 radar images to analyze the relationship between the radar backscatter and forest stand characteristics such as Diameter Breast Height (DBH), basal area, and canopy cover. This research was conducted in Jambi Province, Bungo Tebo District, Sumatra, Indonesia. The research site covered the forest concession, Suku Anak Dalam, the area adjacent to Pelepat and Batang Tebo River, and Kuamang Kuning village. Gamma Map Filter with 7 x 7 window size was applied to reduce speckle noise of the SAR images (ERS-1 and JERS-1). This study found out the positive significant correlation between basal area and DBH with JERS-1 radar backscatter (i.e., r = 0.75 and r = 0.70), while ERS-1 radar backscatter has correlation (r = 0.64) with the canopy cover.
Water Storage Index Estimation using Geographic Information System Wuryanta, Agus; Murtiono, Ugro Hari
Forum Geografi Vol 28, No 1 (2014): July 2014
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v28i1.438

Abstract

The study aims to estimate water storage index (IPA) of six sub watersheds (Panjang, Rengas, Legi, Galeh, Parat, and Sraten) in the cachment area of Rawapening lake by using Geographic Information System. Water storage index can be calculated from average discharge (m3) devided by water requirement (m3) for each land cover/land use. Landuse information is obtained from Indonesian Topographic Map scale of 1:25.000 as updated by using SPOT image (2006), while surface water availability data was obtained from the ministry of public works. The results indicate that 1) IPA of Panjang Subwatershed was categorized as good condition with an index value of 1,49; 2)IPA of Rengas and Legi sub watersheds were categorized as moderate condition with index value 0,76 and 0,55; 3) IPA of Galeh, Parat, and Sraten sub watersheds was categorized as bad with index value of 0,3, 0,15, and 0,33, this watershed need to be improved especially an effective water resources plan, allocating and distributing of water according to priority establishment.
Radar Data for Identifying the Characteristics of Tropical Forest Stands Wuryanta, Agus
Forum Geografi Vol 30, No 1 (2016): July 2016
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v30i1.1501

Abstract

Radar is one of remote sensing technology which utilizes active electromagnetic energy and are able to provide information about the characteristics of forest stand. This study utilized JERS-1 and ERS-1 radar images to analyze the relationship between the radar backscatter and forest stand characteristics such as Diameter Breast Height (DBH), basal area, and canopy cover. This research was conducted in Jambi Province, Bungo Tebo District, Sumatra, Indonesia. The research site covered the forest concession, Suku Anak Dalam, the area adjacent to Pelepat and Batang Tebo River, and Kuamang Kuning village. Gamma Map Filter with 7 x 7 window size was applied to reduce speckle noise of the SAR images (ERS-1 and JERS-1). This study found out the positive significant correlation between basal area and DBH with JERS-1 radar backscatter (i.e., r = 0.75 and r = 0.70), while ERS-1 radar backscatter has correlation (r = 0.64) with the canopy cover.
Study on Species Diversity and Stand Structure in Meru Betiri National Park Riyanto, Heru Dwi; Wuryanta, Agus
Forum Geografi Vol 29, No 1 (2015): July 2015
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v29i1.791

Abstract

National parks are forest ecosystems that contain biotic and abiotic resources. Biodiversity is the data and information necessary to understand the degree of loss of species diversity and formulate a sustainable alternative of decline in these resources. The research objective is to study the reciprocal relationship between elevation and habitat of a species in an ecosystem. Research conducted at the National Park (TN) Meru Betiri. The results show that there are spatial variabilities of the species diversity based on the elevation in the study area. Elevation is inversely proportional to species diversity index, the higher the elevation, the species diversity index tends to decline, but the index of the importance of endemic species have increased. Group stand structure and species composition is influenced by the level of elevation with their own environment.
Co-Authors Heru Dwi Riyanto Irfan Budi Pramono Nining Wahyuningrum Ugro Hari Murtiono, Ugro Hari