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Tinia Leyli Shofia Ahmad, Tinia Leyli Shofia
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Biochemistry, Genetics & Molecular Biology Education

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Kajian Pemilihan Jenis Tumbuhan Untuk Restorasi Hutan Berdasarkan Beberapa Parameter Fotosintesis Ahmad, Tinia Leyli Shofia; Setiadi, Dede; Widyatmoko, Didik
JURNAL BIOLOGI INDONESIA Vol 9, No 2 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.418 KB) | DOI: 10.14203/jbi.v9i2.169

Abstract

Forest restoration is a process of ecosystem conditioning (soil, vegetation, and wildlife) in order to achieve similarpatterns and profiles to previous conditions and status before the ecosystem was disturbed, both in terms of speciescomposition and structure, and habitat functions. Restoration is a crucial part to maximize the conservation values ofbiodiversity and ecosystem functions. Eight different native plant species were assessed in this research while the photosyntheticparameters studied included the total chlorophyll content, carbohydrate content, CO2 sequestration capacity,leaf weight, leaf number, leaf area and leaf water content. Spectrophotometer was operated to analyse chlorophyllcontent, the Somogyi-Nelson method was used to calculate carbohydrate content, and leaf area was measuredusing the leaf area meter. The research results using the principal component analysis showed that each type of theplant species used for the restoration (2 years old after planting) had different characteristics in terms of photosyntheticparameters studied. Dacrycarpus imbricatus and Syzygium lineatum both had the highest carbohydrate contentsand the best abilities to absorb CO2. Sloanea sigun, Alstonia scholaris, Manglietia glauca, and Castanopsis argentea hadhigher total chlorophyll contents than others, while Altingia excelsa, M. glauca, A. scholaris, and Schima wallichii hadhigher water contents. A. scholaris, M. glauca, and S. sigun had heavier leaf weights. In contrast, M. glauca possessedthe widest leaves amongst the species observed.Keywords: forest restoration, photosynthetic parameters, native species
KAJIAN PEMILIHAN JENIS TUMBUHAN UNTUK RESTORASI HUTAN BERDASARKAN BEBERAPA PARAMETER FOTOSINTESIS Ahmad, Tinia Leyli Shofia; Setiadi, Dede; Widyatmoko, Didik
JURNAL BIOLOGI INDONESIA Vol 9, No 2 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v9i2.169

Abstract

Forest restoration is a process of ecosystem conditioning (soil, vegetation, and wildlife) in order to achieve similarpatterns and profiles to previous conditions and status before the ecosystem was disturbed, both in terms of speciescomposition and structure, and habitat functions. Restoration is a crucial part to maximize the conservation values ofbiodiversity and ecosystem functions. Eight different native plant species were assessed in this research while the photosyntheticparameters studied included the total chlorophyll content, carbohydrate content, CO2 sequestration capacity,leaf weight, leaf number, leaf area and leaf water content. Spectrophotometer was operated to analyse chlorophyllcontent, the Somogyi-Nelson method was used to calculate carbohydrate content, and leaf area was measuredusing the leaf area meter. The research results using the principal component analysis showed that each type of theplant species used for the restoration (2 years old after planting) had different characteristics in terms of photosyntheticparameters studied. Dacrycarpus imbricatus and Syzygium lineatum both had the highest carbohydrate contentsand the best abilities to absorb CO2. Sloanea sigun, Alstonia scholaris, Manglietia glauca, and Castanopsis argentea hadhigher total chlorophyll contents than others, while Altingia excelsa, M. glauca, A. scholaris, and Schima wallichii hadhigher water contents. A. scholaris, M. glauca, and S. sigun had heavier leaf weights. In contrast, M. glauca possessedthe widest leaves amongst the species observed.Keywords: forest restoration, photosynthetic parameters, native species
Peningkatan Keterampilan Menyusun Soal Berpikir Tingkat Tinggi bagi Guru-Guru Biologi Madrasah Aliyah Negeri Se Jakarta Suryanda, Ade; Azrai, Eka Putri; Ahmad, Tinia Leyli Shofia; Zubaidah, Zubaidah; Suryani, Evi
Community Education Engagement Journal Vol. 1 No. 2 (2020): April
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/ceej.v1i2.4372

Abstract

Keterampilan berpikir tingkat tinggi pada peserta didik dapat diberdayakan dengan memberikan masalah yang tidak biasa dan tidak menentu seperti pertanyaan atau dilema, sehingga penerapan yang sukses dari kemampuan ini adalah ketika peserta didik berhasil menjelaskan, memutuskan, menunjukkan, dan menghasilkan penyelesaian masalah dalam konteks pengetahuan dan pengalaman. Kegiatan ini didasari kenyataan pada umumnya guru masih memiliki kesulitan dalam mengembangkan pertanyaan dan soal yang sesuai dengan karakteristik berpikir tingkat tinggi. Tujuan umum kegiatan ini adalah meningkatkan kemampuan guru dalam mengatasi kesulitan dan keterampilan guru-guru biologi Madrasah Aliyah Negeri se Jakarta dalam menyusun pertanyaan dan soal yang sesuai dengan karakteristik berpikir tingkat tinggi. Kegiatan di ikuti oleh 40 guru biologi dari 40 Madrasah Aliyah di Jakarta. Kegiatan ini menggunakan Metode experiential learning dengan pendekatan participant-centered melalui teknik case study, dan simulasi/presentasi hasil karya. Pengabdian ini berhasil memberikan pemahaman dan meningkatkan kemampuan guru dalam mengatasi kesulitan kesulitan dalam menyusun pertanyaan dan soal yang sesuai dengan karakteristik berpikir tingkat tinggi.
Co-Authors Ade Suryanda Azrai, Eka Putri Dede Setiadi DIDIK WIDYATMOKO Suryani, Evi Zubaidah R, Zubaidah