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All Journal Jurnal Agriment Jurnal Penelitian Kehutanan Wallacea
Mas'ud, Wardiman
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Agriculture, Biological Sciences & Forestry

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Types of Community Energy Use and Potential for Developing Biofuel Plants in The Bonehau Watershed Chairul S, Muhammad; A. Barkey, Roland; A, Chairil; Mas'ud, Wardiman; Anila, Chaeria; Dara, Marleny; Syahbani, Muhammad Dahri
JURNAL AGRIMENT Vol. 10 No. 1 (2025): Juni 2025
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/jurnalagriment.v10i1.3338

Abstract

Population growth is increasing beyond previous estimates. The world's energy needs are also extensive and continue to grow. This puts pressure on the energy available in nature in the form of biomass, and the decreasing fossil energy. So, alternative energy sources are needed that can be renewed in the form of Biofuel Sources. In addition, the development of biofuel energy source plants is a solution to restore environmental conditions. Based on this, it is necessary to identify the types of energy sources and the potential for developing biofuel energy source plants in the Bonehau Watershed ecosystem. The method used is non-experimental mapping based on Geographic Information Systems. The initial stage of introducing the identification of types of energy use by the community based on accessibility density classes. Furthermore, an analysis of the potential for developing biofuel plants, namely Nyamplung and Kemiri Sunan, was carried out using a land suitability approach. The Bonehau Watershed community generally uses LPG and firewood energy to meet household energy needs. Most people use more firewood energy than LPG because the watershed area has low accessibility, and the availability of firewood around the community's residence is limited. Analysis of Biofuel Plant Land Suitability in the form of Nyamplung Plants has the potential of 25% and Kemiri Sunan Plants 34% of the watershed area to be developed. The potential for developing these plants can handle 59% of the critical land for Nyamplung plants and 74% for Kemiri Sunan plants, from the total critical land area
How Climate Change Disrupts Mango Phenology and Affects Fruit Production Hamzah, Andi Siady; Ngakan, Putu Oka; Kaimuddin, Kaimuddin; Nasri, Nasri; Putra, Putu Supadma; Mas'ud, Wardiman
Jurnal Penelitian Kehutanan Wallacea Vol. 14 No. 2 (2025)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/jpkwallacea.v14i2.47504

Abstract

Climatic elements are limiting factors for plants; therefore, climate change can impact the phenology of plants. This study aims to determine the impact of climate change on the reproductive phenology of four local mango cultivars on Sulawesi Island, Indonesia. Data were collected during 2013 and 2014 by observing and recording the production of vegetative shoots, generative shoots, and fruits from the trees of each mango cultivar weekly. To assess the impact of seasonal change on fruit quality, the weight and sugar level of the ripe fruits in each cultivar were measured. Climate data were obtained from the National Centers for Environmental Prediction and the Indonesian Agency for Meteorology, Climatology, and Geophysics Region IV, Makassar. Results show that from 1979 until 2014, the climate in the study site changed from type D to type C according to the Schmidt-Ferguson Climate Classification method, indicating that the wet season became longer. Following climate change, the reproductive phenology of the four mango cultivars also changed from once to twice annually, whereby the flush of vegetative and reproductive shoots that appeared during the first period in March did not successfully develop into mature fruit but developed following the second period in July. The change of season also impacted the quality of the mangoes, as fruit produced during the longer dry season had higher sugar levels than those produced during the shorter dry season.
Co-Authors A, Chairil A. Barkey, Roland Anila, Chaeria Chairul S, Muhammad Dara, Marleny Hamzah, Andi Siady Kaimuddin Kaimuddin, Kaimuddin Nasri Nasri, Nasri Putra, Putu Supadma Putu Oka Ngakan Syahbani, Muhammad Dahri