Purnaweni, H.
Unknown Affiliation

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Coastal Community Perception of Mangroves in Suli Subdistrict, Luwu Sulaiman, B.; Bambang, A. N.; Purnaweni, H.; Lutfi, M.; Mohammed, E. M. A.
Jurnal Pendidikan IPA Indonesia Vol 8, No 4 (2019): December 2019
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v8i4.21396

Abstract

Mangrove forest in the coastal area in the Suli subdistrict is one of the sources of livelihood for the local people. The objective of this research is to analyze the public perception of the coastal community towards mangrove forests. The analysis was carried out using a questionnaire-multilevel scale with the level of assessment that refers to the Likert scale. The questionnaires, which were disseminated to 100 respondents, contained questions about the public perception in the coastal mangrove area. The questions were divided into 5 part questions, namely: 4 questions for the public perception towards ecological functions, 7 questions for community participation, 5 questions for economic benefit, 5 questions for social and culture, and 5 questions for government regulation. The results revealed that the average of public perception towards the ecological functions of mangrove was good, with a value of 4.11 (in category 4). The public perception towards public participation was also good, with a value of 3.69 (in category 4). Moreover, the public perception about the economic benefits of mangrove was quite good, with a value of 3.37 (in category 3). The social and culture was quite good, with a value of 3.32 (in category 3). Finally, the public perception towards government regulation (law enforcement) was good, with a value of 3.57 (in category 4). Based on the results, the average value was 3.61, which means that mangroves management is good (in category 4) based on the perceptions of a coastal community in the Suli Subdistrict. The level of education does not affect the perception of the importance of mangrove management. This was caused by the existence of local wisdom, which considers that mangroves are the nails of the earth that can prevent coastal abrasion. This local wisdom is maintained up to now, where the local community formed a group of mangrove lovers that aims to plant and conserve mangroves.
Greenhouse Gas Emissions and Biogas Potential from Livestock in Rural Indonesia Heriyanti, A. P.; Purwanto, P.; Purnaweni, H.; Fariz, T. R.
Jurnal Pendidikan IPA Indonesia Vol 11, No 1 (2022): March 2022
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v11i1.34465

Abstract

The livestock sector is one of the most significant contributors to greenhouse gas (GHG) emissions. Jetak Village in Indonesia has a large livestock population, so it has the potential to be a reasonably high contributor to GHG emissions. Therefore, research is needed to calculate GHG from the livestock sector and calculate biogas potential. Besides, we also discuss data collection techniques that are important but often forgotten in GHG reduction studies in developing countries. This is useful as an effort and reference to reduce GHG emissions in rural areas, especially in Jetak Village. The GHG calculation uses the Tier-1 method, while the data on the potential for biogas utilization is obtained from manure production calculations and in-depth interviews. The calculation results show that the highest total GHG from livestock management in Jetak Village in 2017 was 1,106.69 tons CO2-eq/year, while the lowest total GHG emissions in 2015 were 1,018.41 CO2-eq Gg/year. Dairy cows are the biggest emitter in livestock management, with 4,919.61 tons of CO2-eq/year, and laying hens are the lowest emitters with 1.39 tons CO2-eq/year. Dairy cows are the largest contributor to GHG emissions in enteric fermentation with 9,680.52 tons CO2-eq/year, and the lowest number of contributors is horses with 20.79 tons CO2-eq/year. The potential of biogas in Jetak Village based on manure production is 137 installations. The positive community's perception supports this. It tends to be less valid regarding livestock population data used for GHG calculations, so we verified it during in-depth interviews. The in-depth interview process used local language to enhance the quality of responses. This research needs to be developed considering our findings that there are only 50 biogas installations, indicating the biogas potential is not being utilized to its full potential.