Pengurangan Karbon (C) pada Serasah Daun Angsana (Pterocarpus indicus) dan Daun Trembesi (Samanea saman) Melalui Metode Pengomposan Lubang Resapan Biopori Inovatif

Reduction of Carbon (C) on Angsana (Pterocarpus Indicus) and Trembesi (Samanea Saman) Leaf Litter Using Innovative Biopori Infiltration Hole Composting Method

Polusi udara dari aktivitas kendaraan bermotor dapat memicu kenaikan gas rumah kaca (GRK) di atmosfer. Karbondioksida (CO₂) dan karbon (C) merupakan zat dominan yang tersebar di udara. Upaya penurunan pencemaran udara dilakukan melalui penyerapan karbon (C) oleh tanaman di sepanjang jalan seperti tanaman angsana (Pterocarpus indicus) dan trembesi (Samanea saman). Banyaknya tanaman peneduh jalan menyebabkan penumpukan serasah daun yang mengandung karbon. Penelitian ini bertujuan untuk mengetahui perubahan kadar karbon (C) pada serasah daun P. indicus dan daun S. saman melalui metode pengomposan lubang resapan biopori (LRB) menggunakan aktivator kotoran ayam dan Effective Microorganisms-4 (EM-4). Jenis penelitian yang dilakukan adalah eksperimental dengan rancangan acak lengkap (RAL) sebanyak empat perlakuan tiga ulangan menggunakan metode pengomposan LRB selama dua bulan. Perlakuan yang dipakai yaitu penambahan 200 ml air (kontrol), 200 gram kotoran ayam, 100 gram kotoran ayam + 100 ml EM-4 dan 200 ml EM-4. Analisis data diperoleh dari hasil perhitungan kadar karbon sebelum perlakuan menggunakan rumusan SNI (2011), hasil pengujian kadar karbon organik (C-organik) bulan ke-1 dan bulan ke-2 menggunakan uji gravimetri. Hasil data dianalisis menggunakan Two way ANOVA software SPSS 23. Penelitian ini dapat disimpulkan bahwa terdapat perubahan kadar karbon (C) dari serasah daun P. indicus dan daun S. saman menjadi C-organik setelah pengomposan selama dua bulan yang dipengaruhi oleh penambahan aktivator kotoran ayam dan EM 4. Perlakuan yang memiliki hasil kadar C-Organik sesuai standar SNI 19-7030-2004 dalam batasan 9-32% yaitu pada pengomposan serasah daun S. saman perlakuan kontrol (K1) 12,43% dan penambahan aktivator kotoran ayam (K2) 9,32%.

Kata Kunci: Karbon (C), C-organik, Serasah dan Aktivator

Air pollution from motor vehicle activity can trigger a rise in greenhouse gases (GHG) in the atmosphere. Carbon dioxide (CO2) and carbon (C) are the dominant substances scattered in the air. Efforts to reduce air pollution are carried out through carbon sequestration (C) by plants along the way such as angsana plants (Pterocarpus indicus) and trembesi (Samanea saman). A large number of road brewing plants causes a build-up of carbon-containing leaf litter. This study aims to find out the changes in carbon content (C) in the litter of P. indicus leaves and S. saman leaves through the composting method of biopori infiltration holes (LRB) using chicken manure activators and Effective Microorganisms-4 (EM-4). The type of research conducted was experimental with a completely randomized design (RAL) as many as four three-test treatments using the LRB composting method for two months. The treatment used is the addition of 200 ml of water (control), 200 grams of chicken manure, 100 grams of chicken manure + 100 ml of EM-4, and 200 ml of EM-4. Data analysis was obtained from the results of carbon content calculation before treatment using SNI formulation (2011), organic carbon content (C-organic) test results of the 1st month and 2nd-month using gravimetry test. The data results were analyzed using Two way ANOVA SPSS 23 software. This study can be concluded that there is a change in carbon content from P. indicus leaf litter and S. saman leaves to C-organic after composting for two months which is influenced by the addition of chicken manure activator and EM 4. Treatment that has the result of C-Organic by SNI standard 19-7030-2004 within the limit of 9-32% that is on composting S. saman leaf litter control treatment (K1) 12.43% and the addition of chicken manure activator (K2) 9.32%.