
Tim Adiwiyata MAN 1 Probolinggo, Senin (21/11/2022). Foto: adiwiyata mansapro
humas mansapro
MANSAPRO– Hari Pohon Se-Dunia yang diperingati setiap tanggal 21 Nopember, hari ini di MAN 1 Probolinggo juga diperingati dengan penanaman pohon oleh semua warga mansapro, Senin (21/11/2022).
Peringatan Hari Pohon Se- Dunia yang digelar hari ini dimulai dengan Apel yang berlangsung di halaman madrasah dengan diikuti oleh seluruh warga mansapro.
Kepala madrasah, bapak Muhammad As’adi menegaskan kalau giat menanam pohon masuk dalam ranah kurikulum merdeka.
“Ya ini bagian dari kurikulum merdeka, di situ ada melestarikan lingkungan,” ujarnya
“Menanam pohon bisa termasuk amal jariyah, kalau terus dimanfaatkan oleh orang lain,” lanjut pak As’adi.
Program satu jiwa satu pohon (saji-sapo) yang digalakkan oleh Tim Adiwiyata mansapro sebagai salah satu upaya untuk memberikan pemahaman kepada siswa serta menanamkan kepedulian terhadap kelestarian lingkungan hidup, semua warga madrasah pada hari ini diwajibkan membawa satu pohon yang harus ditanam dan dirawat sendiri.
“Jadi semua warga, baik guru maupun murid, hari ini membawa satu pohon untuk ditanam di lingkungan madrasah, mereka menanam sendiri dan selanjutnya bertanggung untuk menjaga dan merawatnya,” tutur ibu Raudlatussa’adah, ketua tim Adiwiyata MANSAPRO.
“Ini salah satu upaya kita untuk memberikan pembelajaran dalam melestarikan lingkungan, serta usaha untuk terus menjaga keseimbangan ekosistem di alam semesta, karena kalau bicara pohon berarti kita bicara soal oksigen yang merupakan bagian unsur dasar kebutuhan hidup,,” ungkap guru Biologi yang akrab dipanggil dengan bu hajah Ida ini.
Berapa banyak oksigen yang dibutuhkan setiap orang dalam sehari?
Dikutip dari halaman Direktorat Jenderal Kesehatan ;
Oksigen adalah unsur penting yang dibutuhkan oleh tubuh manusia untuk menjalankan fungsi – fungsi organ secara baik. Sekitar 20,93 % udara bebas disekitar kita adalah oksigen.
Mengutip dari www.idntimes.com dalam satu menit, rata-rata manusia dewasa menghirup udara sebanyak 7-8 liter udara. Jika dikalkulasi dalam satu hari, maka kurang lebih seorang manusia rata-rata menghirup udara sebanyak 11.000 liter. Hitungan tadi terjadi dalam suatu aktifitas normal. Jika pada hari itu seseorang melakukan aktivitas yang lebih banyak dan aktif, maka udara yang dihirup akan semakin banyak pula, bisa mencapai 12.000 liter udara perhari. Dari total sekitar 11.000 liter udara per hari yang kita hirup, sekitar 20%-nya merupakan Oksigen. Artinya, perhari seorang manusia menghirup sekitar 2.200 liter oksigen. Angka ini, jika dihitung berdasarkan harga oksigen yang beredar di pasaran, yakni Rp 25.000 per liter, maka jika dinominalkan dalam bentuk rupiah nilai oksigen yang kita hirup perharinya adalah Rp 5.500.000,-.
Selanjutnya, berapa banyak oksigen yang dikeluarkan oleh pohon setiap hari?
Mengutip dari halaman Forest Tigest.com ;
Tiap jenis pohon tentu berbeda-beda memproduksi oksigen karena fotosintesis terpengaruh oleh zat klorofil, luas permukaan daun, batang, kedalaman akar. Tapi umumnya satu pohon terdiri dari 5% daun, 15% tangkai, 60% batang, dan 20% akar. Kita ambil saja pohon sonokeling dan akasia.
Satu pohon sonokeling (Dalbergia latifolia) setinggi 10 meter bisa menghasilkan oksigen 207,33 kilogram per hari. Sementara satu pohon akasia menghasilkan oksigen 143,33 kilogram sehari. Maka, dengan asumsi kebutuhan dan produksi oksigen itu, satu pohon sonokeling sanggup menyuplai oksigen untuk 177-239 orang dan akasia 122-165 orang sehari.
Fabiayyi alaa’i Robbikuma tukadzdzibaan ? (ZA)



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