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Changes in peak discharge based on sago land use scenarios in the upstream Rongkong watershed, Indonesia Yumna Yumna; Sugeng Prijono; Wahid Wahid; Srida Mitra Ayu; Witno Witno
Journal of Degraded and Mining Lands Management Vol 9, No 4 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.094.3763

Abstract

Land use affects changes in peak discharge so that it has the potential to cause or prevent flooding. Sago has morphological characteristics that have the potential to absorb more water. This study aimed to determine the magnitude of the change in peak discharge in the upstream watershed after sago planting. Observations were made on the three growth phases of sago palms (initial, middle, and mature phases). The research stages included calculating the runoff coefficient value under sago stands at three growth phases. Peak discharge of the existing conditions (settlements, rice fields, mixed gardens, shrubs, sand dunes, forests, and water bodies) was estimated after three scenarios of sago land use. The scenarios consisted of 25% of the land area planted with sago (scenario 1), 50% for scenario 2, and 100% for scenario 3. The data were analyzed quantitatively by comparing peak discharge in the existing conditions with scenario results. The results showed that the peak discharge in the existing conditions was 52.36 m3 hour-1. Peak discharge in the initial phase of scenario 1 was 18.94 m3 hour-1, scenario 2 was 37.88 m3 hour-1, and scenario 3 was 75.77 m3 hour-1. Peak discharge in the middle phase of scenario 1 was 19.01 m3 hour-1, scenario 2 was 38.02 m3 hour-1, and scenario 3 was 76.04 m3 hour-1. Peak discharge in the mature phase of scenario 1 was 6.38 m3 hour, scenario 2 was 12.76 m3 hour-1, and scenario 3 was 26.55 m3 hour-1. The peak discharge in the upstream watershed decreased after the scenarios with the use of sago land for all growth phases, except for scenario 3 of the initial and middle phases.
Composition And Structur Of Vegetaon In The Dere Black Monkey (Macaca maura schienz 1825) In Lejja nature park, Soppeng District Liana Liana; Witno witno
Jurnal Penelitian Kehutanan BONITA Vol 4, No 1 (2022): Juli 2022
Publisher : Universitas Andi Djemma Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55285/bonita.v4i1.1213

Abstract

This study discusses the composition of the type and structure of vegetation in the habitat of the black dare monkey (Macaca Maura) at the Lejja Nature Tourism Park, Soppeng Regency, which aims to determine the composition of the type and structure of the vegetation and habitat of Macaca Maura in the Lejja Nature Tourism Park. The research is located in the Lejja Nature Tourism Park Conservation forest area, Soppeng Regency. The method used is observation, purposive sampling, literature study, and documentation. At the same time, the Pole level found 12 species with a total of 35 individuals and 12 families. And Sapling found 17 species with a total of 69 individuals with 17 families. At the same time, the Semai level found 20 species with a total of 50 individuals with 20 families. The Angsana tree and the highest LBDS at the tree and pole levels, with a value of 9040.69%, while the lowest is owned by the Campenong tree, with a value of 92.85%. Meanwhile, for the highest sapling level of plant species, the Arungganga tree has an LBDS value of 393, 69%, while the lowest LBDS value is owned by Locong-Locong with a value of 13.19%.  
Utilization Of Non-Wood Forest Products (Ntfps) By The Community Around The Protected Forest Area Kalotok Village, North Luwu Regency Wiwi Pradini; Srida Mitra Ayu; Witno Witno
Jurnal Penelitian Kehutanan BONITA Vol 4, No 1 (2022): Juli 2022
Publisher : Universitas Andi Djemma Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55285/bonita.v4i1.1310

Abstract

This study aims to determine the use of NTFPs by the community around the Kalotok protected forest area and to determine the use of NTFPs by the community around the protected forest area. This research was conducted in Kalotok Village, Sabbang District, North Luwu Regency. This research was conducted from April to June 2021. The method used was an interview method using a questionnaire. The number of respondents as many as 60 people. Data analysis used descriptive qualitative method. The results of the study obtained data as many as 9 types of Non-Timber Forest Products (NTFPs) which are used by communities around protected forest areas. The NTFPs used by the community are Durian, langsat, rattan, honey, bamboo, melinjo and sugar palm.
POTENSI TUMBUHAN BAWAH SEBAGAI TANAMAN HIAS DI KAWASAN AIR TERJUN SARAMBU’ALLA KABUPATEN LUWU UTARA Uci Angraini; Yumna Yumna; Witno Witno
Jurnal Penelitian Kehutanan BONITA Vol 4, No 1 (2022): Juli 2022
Publisher : Universitas Andi Djemma Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55285/bonita.v4i1.1177

Abstract

The village Kalotok is one of the villages which is located in the District of Sabbang South, North Luwu Regency, with an area of 4,500 ha, of which the majority of its territory is in the mountains and rural, which has a variety of types of vegetation understorey. The understorey has a significant role in the ecosystem; one of the species below is an ornamental plant that has influence directly on human ecology, is used to set the erosion and wind, to give your device a place of recreation and sports as well as for satisfying the human desire on beautiful objects. This study aims to determine the types of plants under potential as ornamental plants in the waterfall Sarambu'alla. Pengamatan is done by using the technique of purposive sampling and laying a plot on the location of widely scattered understorey potential as an ornamental plant. The Plot of the study size is 20 m x 20 m with the consideration of the area of The Waterfall 58.000 m2, so that the intensity of sampling for research by 10% with an area of 5,800 m2, so that the total plot research 15 plots with an area of 6000 m2. Data analysis used is the analysis of the important values to calculate the value of the density, relative density, frequency, and relative frequency. This study found 12 types of plants with an overall total of 1487 individuals. The amount of the highest kind is Paku Rene (Selaginella), while the number of the type has the lowest value, i.e. Sirih Lurik (Scindapsus pictus). The important values in the category of excellent (160) this value into the potential to increase the income of economic value to the community if appropriately utilised.
Vegetation Analysis in Areas Around The Landslides of Palopo City Dewi Marwati Nuryanti; Liana Baharuddin; Witno witno; Andang Suryana Soma; Asriyanni Asriyanni; Srida Mitra Ayu
Jurnal Penelitian Kehutanan BONITA Vol 4, No 2 (2022): DESEMBER 2022
Publisher : Universitas Andi Djemma Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55285/bonita.v4i2.1653

Abstract

The composition and structure of vegetation is one of the parameters that must be considered in forest planning activities. It can also be defined that the structure of vegetation as a result of spatial planning by the components of the stand and the life form of the vegetation which is described through the conditions of diameter, height, distribution in space, canopy diversity, and species continuity. In order to be able to withstand the occurrence of landslides, especially those in sloping areas, it is very important to analyze the vegetation to determine the composition and structure of vegetation types so that the forest is maintained (Fahrul, 2007). The purpose of this study was to determine vegetation in the existing area around the landslides in Palopo city. Research methods. The method of determining plots is purposive sampling, to find out vegetation and tree classification based on the growth rate of the method, namely by making observation plots and placing them by census at the top of 12 landslide points with a size of 20 m x 20 m for trees, 10 m x 10 m for poles, 5 m x 5 m for saplings and 2 m x 2 m for seedlings. The results obtained for the growth rate of trees found 35 species with the highest IVI Litsea sp 95.94%, the growth rate of poles found 28 species with the highest IVI Litsea sp 71.15%, the growth rate of saplings found 62 species with the highest IVI Cinnamomum camphora 45.62 %, and the level of seedlings found 51 species with the highest IVI Nephrolepis cordifolia 40.78%. The biodiversity index found a sapling growth rate with the highest H' value of 3.41 in the high species diversity category. Likewise the highest evenness index on saplings with an E' value of 0.59 is in medium level of evenness.
PENINGKATAN KAPASITAS KELOMPOK TANI HUTAN GOLLANA SANGTANDUNG DALAM PENGOLAHAN NIRA AREN MENJADI GULA SEMUT (GULA GRANULAR ) Witno Witno; Yumna Yumna; Dewi Marwati Nuryanti; Maria Maria
Jurnal Abdi Insani Vol 9 No 4 (2022): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v9i4.785

Abstract

One of the products that can be created from the micro industry is processing palm sap into granulated sugar, commonly known as ant sugar. In the forestry sector, sugar palm is one of the plants included in the category of Non-Timber Forest Products. NTFPs are non-timber forest products that have economic value and benefit many people. This activity aims to determine the capacity of forest farmer groups in processing palm sap into palm sugar using modern technology in the form of crystallite and sorting machines. The methods used are socialization, counselling and using tools for the product packaging. The result of this activity is that public knowledge regarding processing palm sugar using modern technology is still lacking and not used to it. After practising the use of tools accompanied by a team and technicians, community knowledge of the use of modern technology tools in the form of Crystallator and Sorting machines also increased from not knowing to know. Likewise, in terms of product packaging, people who initially used ordinary tools and even used leaves have now expanded to tofu and can use modern packaging tools. However, it is necessary to provide continuous assistance. This activity concludes that the community has been able to use modern tools and package products properly even though they still need help for marketing and stock.
Pola Sebaran Rotan (Calamus spp.) di Hutan Lindung Desa Sassa Kabupaten Luwu Utara Witno Witno; Maria Maria; Forestri Cimbrins
Jurnal Ilmu Kehutanan Vol 16 No 1 (2022): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7464.664 KB) | DOI: 10.22146/jik.v16i1.3440

Abstract

The Sassa Village Protection Forest has several rattan types in several forest areas. As a plant belonging to the Arecaceae tribe, rattan has a distribution pattern that varies according to where it grows. The distribution pattern describes the distribution of individuals in a population, such as clustered, random or regular patterns. This study aimed to determine the distribution pattern of rattan in the Protected Forest of Sassa Village, Baebunta District. Data was collected by placing plots using purposive sampling with technical data analysis in the form of density and frequency of rattan species and distribution patterns using the Morishita index. The results of this study obtained two distribution patterns of rattan based on the type, namely the uniform distribution pattern found in the kind of rattan Lambang (Calamus ornatus Blume), Pahit rattan (Calamus usitatus Blanco), Susu rattan (Daemonorop robusta Warb). The clumped distribution pattern consists of Jermasin rattan (Calamus ecojolis Becc), Saloso rattan (Calamus sp.) Tohiti rattan (Calamus inops Beccari).
Essential Oils of Etlingera acanthodes A.D. Poulsen, An Endemic Ginger from Sulawesi Island Hurria Hurria; Anggra Alfian; Muhammad Fajri Ramadhan Muslim Saleh; Heder Djamaludin; Murni Mursyid; Witno Witno; Asri Subkhan Mahulette
Journal of Tropical Biodiversity and Biotechnology Vol 8, No 2 (2023): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.72117

Abstract

Etlingera acanthodes A.D. Poulsen is a ginger endemic to Sulawesi, and there is no research on its essential oils. The Essential oil information of E. acanthodes is the first reported and has a high novelty. The objective of the study is to analyze the component of E. acanthodes essential oils, which are endemic to Sulawesi. The essential oils obtained by hydrodistillation of the leaves, stems, flowers, and rhizomes of E. acanthodes A.D. Poulsen. The samples were analyzed by GC-MS method using the Agilent Technologies 7890 Gas Chromatograph with Auto Sampler. Data analysis of essential oils of GC-MS results were determined based on comparing mass spectra from the NIST 2005 v.2.0 library and Wiley 7 library 2003. The oils of E. acanthodes contain terpenoids, phenolic, steroids, and other compounds. Phenolic compounds (39.56%) predominate in leaves, other compounds (41.25%) on stems, diterpenes hydrocarbons (77.3%) in flowers, and other compounds (43.5%) and steroids (40.4%) on rhizomes. The five main compounds of E. acanthodes are Neophytadiene; (+)-De-O-Methylcentrolobine; Cholest-5-En-3-Ol,23-Ethyl-,(3. Beta.23S)-; 9,12-Octadecadienoic Acid, Phenol, 2-ethyl-. The analysis found several compounds that can be used for industry and medicine in the future.  
Community Knowledge About Human Activities That Potential As A Disturbance Of The Ponda-Ponda Natural Reserve, East Luwu Regency Witno Witno; Yumna Yumna; Eko Rifaldo; Andi Utami Batari Putri
Jurnal Penelitian Kehutanan BONITA Vol 5, No 1 (2023): Juni 2023
Publisher : Universitas Andi Djemma Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55285/bonita.v5i1.1309

Abstract

A nature reserve is a nature reserve area which because of its nature reserve has the uniqueness of plants, animals, and their ecosystems or certain ecosystems that need to be protected and their development takes place naturally. This research conducted in the ponda-ponda nature reserve is one of the conservation areas managed by the South Sulawesi KSDA Center which is located in East Luwu Regency. This study aims to analyze peope’s knowledge about human activities that have the potential to be a disturbance to the ponda-ponda nature reserve. Method of collecting data by making direct observations in the field with interview techniques using questionnaires. The population of this research is the Teromu village community and the sample who becomes the research respondent is 20 people. The data analysis used is descriptive socisl analysis. The results of this study area the knowledge of the community about human activities that have the potential to disrupt the Ponda-Ponda nature reserve, namely, 5% forest fires, 0% cultivation, 5% illegal grazing, 15% illegal logging, 30% wildlife hunting and 45% timber theft.
Potential Seed Source for the Preservation of Bitti (Vitex cofassus) in the Community Forest of Burau District, South Sulawesi, Indonesia Yumna Yumna; Witno Witno; Nardy Noerman Najib; Liana Liana; Ikmal Ikmal
Agro Bali : Agricultural Journal Vol 6, No 2 (2023)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v6i2.1159

Abstract

Bitti (Vitex cofassus) is one of the most important tree species in Sulawesi, or in some areas, it is also known as gofasa. Bitti wood is also widely used for other uses, such as building timber and carpentry wood. This study aimed to determine the potential source of beetroot (Vitex cofassus) seeds in the Community Forest of Burau Village. This study used the exploratory method by making plots using purposive sampling on a 100m x 100m plot with 38 sampling plots.. Data analysis of potential beetroot seed sources includes measuring diameter, tree height, tillering potential, and determining scoring based on the presence of seeds to determine the possibility of Bitti tree seeds. The results of this study showed that the phenotypic characteristics of the 18 plots that had been selected were a total diameter of 524.44, an entire tree height of 272 m, and a branch-free height of 50.5 m of the 18 parent trees that have been identified, then selected with the criteria of having fruit and saplings. Bitti trees have the most significant tillering potential, found in plot 21 with 0.005% of tillers and 0.0097% of the fruit. Other results obtained the highest value in the parent tree with a score of 73 with a potential class of 5. Genetic and environmental factors can affect plant growth, so the selection of seed source trees to get Bitti mother plants with good phenotypic quality will produce quality seeds.