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Serapan Karbondioksida (CO2) Jenis-Jenis Pohon di Taman Buah "Mekar Sari" Bogor, Kaitannya dengan Potensi Mitigasi Gas Rumah Kaca Hidayati, N.; Reza, M.; Juhaeti, T.; Mansyur, M.
JURNAL BIOLOGI INDONESIA Vol 7, No 1 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

ABSTRACTCarbondioxide (CO2) Absorption by Trees in "Mekar Sari" Fruit Garden, Bogor, in Relationto Green house Gases Mitigation. Biological diversity can make a significant contribution toreducing the build-up of greenhouse gases in the atmosphere. A biological diverse tropicalforest with a diverse plant species typically stores 50 times more carbon per unit area comparedto monoculture plantation replacing it. Thus, the trees in forests have an essential role in thefunctioning of the terrestrial biosphere, especially in the carbon cycle. Yet wild tree photosynthesesare poorly studied than crop photosynthesis for several reasons: the large number ofspecies; difficulty in measuring photosynthesis of entire trees or of forest stands. This researchaims to assess the contribution of biological diversity in CO2 absorption by analyzing thephysiological characteristics (photosynthesis, transpiration, stomatal conductance, leaf chlorophyllcontent) of tree species in "Mekar Sari" fruit garden, Bogor. The results will provideinformation on carbon sequestration of some tree species suitable for revegetation. Variance inCO2 assimilation rate is large among trees species. The results showed that there was a widerange of variation of CO2 assimilation rate between tree species. The overall CO2 assimilationrate ranged 2.33 - 13.42 ?molm-2s-1. The highest was Matoa (13.42 molm-2s-1 ) , followed byKacapi (12.50 ?molm-2s-1), Durian (11.00 ?molm-2s-1) and Nangka (11.00 ?molm-2s-1). Transpirationrate was recorded between 4.29 - 9.50 molm-2s-1. The rate of CO2 assimilation wasaffected by incident radiation and thus the quantum leaf (Q leaf) as well as leaf chlorophyllcontent. Correlation between CO2 assimilation and Q leaf under certain environmental conditionwas considerably high. Variance in stomatal conductance and transpiration rate variedamong tree species and were related to light intensity.Key words: Photosynthesis, CO2 absorption, trees

SERAPAN KARBONDIOKSIDA (CO2) JENIS-JENIS POHON DI TAMAN BUAH "MEKAR SARI" BOGOR, KAITANNYA DENGAN POTENSI MITIGASI GAS RUMAH KACA Hidayati, N.; Reza, M.; Juhaeti, T.; Mansyur, M.
JURNAL BIOLOGI INDONESIA Vol 7, No 1 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i1.3134

ABSTRACTCarbondioxide (CO2) Absorption by Trees in "Mekar Sari" Fruit Garden, Bogor, in Relationto Green house Gases Mitigation. Biological diversity can make a significant contribution toreducing the build-up of greenhouse gases in the atmosphere. A biological diverse tropicalforest with a diverse plant species typically stores 50 times more carbon per unit area comparedto monoculture plantation replacing it. Thus, the trees in forests have an essential role in thefunctioning of the terrestrial biosphere, especially in the carbon cycle. Yet wild tree photosynthesesare poorly studied than crop photosynthesis for several reasons: the large number ofspecies; difficulty in measuring photosynthesis of entire trees or of forest stands. This researchaims to assess the contribution of biological diversity in CO2 absorption by analyzing thephysiological characteristics (photosynthesis, transpiration, stomatal conductance, leaf chlorophyllcontent) of tree species in "Mekar Sari" fruit garden, Bogor. The results will provideinformation on carbon sequestration of some tree species suitable for revegetation. Variance inCO2 assimilation rate is large among trees species. The results showed that there was a widerange of variation of CO2 assimilation rate between tree species. The overall CO2 assimilationrate ranged 2.33 - 13.42 ?molm-2s-1. The highest was Matoa (13.42 molm-2s-1 ) , followed byKacapi (12.50 ?molm-2s-1), Durian (11.00 ?molm-2s-1) and Nangka (11.00 ?molm-2s-1). Transpirationrate was recorded between 4.29 - 9.50 molm-2s-1. The rate of CO2 assimilation wasaffected by incident radiation and thus the quantum leaf (Q leaf) as well as leaf chlorophyllcontent. Correlation between CO2 assimilation and Q leaf under certain environmental conditionwas considerably high. Variance in stomatal conductance and transpiration rate variedamong tree species and were related to light intensity.Key words: Photosynthesis, CO2 absorption, trees

Analysis Of Communication Media Assistance On The Program Keluarga Harapan (PKH) In The Implementation Of Family Development Session (FDS)” Istiani, Ade Nur; Mansyur, M.
KOMUNIKA Vol 5 No 1 (2022): Accredited by Kemenristekdikti RI SK No.200/M/KPT/2020
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/komunika.v5i1.11303

The Family Hope Program (PKH) is a conditional cash transfer program given to poor families in Indonesia. PKH in the long term is expected to be able to break the chain of poverty between generations through improving the conditions of education and health in PKH families which are obtained through FDS activities. The success of FDS cannot be separated from the use of communication media in improving the quality of beneficiary families as well as recipients of messages about education, health and improving the family economy. The method used in this study is a qualitative descriptive method. Research informants were determined by purposive sampling technique . Data collection techniques are carried out by means of observation, in-depth interviews (in- depth interview) and documentation. Data analysis procedures or techniques used are data reduction , data display , and conclusion drawing. The results of this study show Communication media in the form of videos, flipcarts and smart books that are used by PKH facilitators in the Family Development Session process make it very easy for mothers to receive material from their companions, and have a good impression on mothers participating in the family of hope program in Batu Putuk Village, Teluk Betung Barat, Bandar City. Lampung. In terms of health, education and economy, they are able to shape the mothers of PKH Beneficiaries into quality families.

Pengaruh Online Customer Review (OCR) Terhadap Keputusan Pembelian Di Shopee Pada Mahasiswa UMKO Amelinda, Irma; Salas, Hagi Julio; Marini, Marini; Mansyur, M.
INTERCODE Vol 5, No 2 (2025)
Publisher : Universitas Muhammadiyah Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36269/ire.v5i2.3105

Online customer review merupakan salah satu komponen yang tersedia di platform e-commerce shopee yang berisi penilaian dari yang mereka beli baik itu produk atau jasa yang diberikan oleh pelanggan atau konsumen lain. Online customer review saat ini menjadi salah satu factor yang cukup penting untuk membujuk para pelanggan agar melangsungkan transaksi di platform shopee. Tujuan penulisan artikel ini untuk melihat hubungan stimulus respon dari ulasan pelanggan terhadap Keputusan untuk membeli produk. Didalam penelitian ini peneliti memakai metode kuantitatif. Pengumpulan data dikerjakan menggunakan cara sebar angket / kuesioner kepada 49 responden dengan kualifikasi pernah melakukan transaksi di shopee dan melihat ulasan pelanggan yang ada. Pengujian data dikerjakan melalui aplikasi pengolahan data statistic IBM SPSS 30. Hasil dari penelitian menyatakan bahwa stimulus respon ulasan pelanggan memiliki pengaruh terhadap Keputusan untuk membeli produk terbukti dengan nilai sebesar 0,557 atau 55,7%. Hasil dari penelitian ini adalah ulasan pelanggan terbukti mempunyai dampak cukup besar terhadap Keputusan untuk membeli produk dan menjadi salah satu fitur penting. Temuan didalam artikel ini adalah para pelaku usaha e-commerce agar dapat meningkatkan kualitas produk dan interaksi dengan pelanggan Ketika ada ulasan buruk yang diberikan terhadap produk.

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