Hapsyari, Mulidaya DAMPAK SISTEM PENGELOLAAN LAHAN PERKEBUNAN KELAPA SAWIT RAKYAT TERHADAP SEKUESTRASI KARBON. Pertanian. (Submitted)
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Abstract
Research on the impact of the management system of smallholder oil palm plantations on carbon sequestration was carried out to determine and study the impact of the management system of smallholder oil palm plantations on carbon sequestration, especially in carbon mitigation and sustainable smallholder planning. The research was carried out in Sungai Bertam Village, Jambi Luar Kota District, Muaro Jambi District from May to August 2019. The research was conducted using the Descriptive-Explorative Survey Method using a 1: 50,000 scale working map. The main data include the diameter and height of oil palm stems obtained through the Non-destructive Method with direct measurements in the field, weed biomass using the Destructive Method through weed sampling, as well as pH and C-organic soils through sampling composite soil depth of 0-30 cm in the field . The number of sample observation plots (PCP) is determined by stratified proportionated random sampling in accordance with the area of homogeneous land units (SLH) of 13 points. Supporting data, namely weed type data and a brief history of land use, data on soil type, slope, and land use were obtained from direct observations and from previous studies, as well as rainfall data obtained from BMKG. The data collected is then recapitulated and tabulated according to variables, then performed multiple regression tests, analyzed descriptively and presented in tables and graphs. The results showed the total value of oil palm plant biomass of all SLH was 368.66 tons with CO2 sequestration of 622 tons, total biomass of weeds of all SLH was 2.62 tons and CO2 sequestration of 4.42 tons, the equation of the results of multiple linear regression obtained for total tree biomass is Biomass (Ŷ) = -10.097 - 0.015 (U) + 0.073 (BO) + 4.2431 (DBH) + 0.801 (T) with R = 0.98 and R2 = 0.96. Variables that have a significant effect on diameter (DBH) and stem height, total biomass and sequestration of carbon in smallholder oil palm plantations are getting higher with better land management systems and the contribution of biomass from weeds also affects the amount of carbon sequestration if no pruning is done on the land. Penelitian dampak sistem pengelolaan lahan perkebunan kelapa sawit rakyat terhadap sekuestrasi karbon dilakukan untuk mengetahui dan mempelajari dampak sistem pengelolaan lahan perkebunan kelapa sawit rakyat terhadap sekuestrasi karbon terutama dalam mitigasi karbon dan perencanaan perkebunan rakyat berkelanjutan. Penelitian dilaksanakan di Desa Sungai Bertam Kecamatan Jambi Luar Kota, Kabupaten Muaro Jambi pada bulan Mei sampai dengan Agustus 2019. Penelitian dilakukan dengan Metode Survei Deskriptif-eksploratif menggunakan peta kerja skala 1:50.000. Data utama meliputi diameter dan tinggi batang kelapa sawit didapat melalui Metode Non-destructive dengan pengukuran langsung di lapangan, biomassa gulma menggunakan Metode Destructive melalui pengambilan contoh gulma, serta pH dan C-organik tanah melalui pengambilan contoh tanah komposit kedalaman 0-30 cm di lapangan. Jumlah plot contoh pengamatan (PCP) ditetapkan secara stratified proportionated random sampling sesuai dengan luas satuan lahan homogen (SLH) sebanyak 13 titik. Data penunjang yaitu data jenis gulma dan sejarah singkat penggunaan lahan, data jenis tanah, kemiringan lereng, dan penggunaan lahan diperoleh dari pengamatan langsung dan dari penelitian terdahulu, serta data curah hujan yang diperoleh dari BMKG. Data yang dikumpulkan selanjutnya direkapitulasi dan ditabulasi sesuai variabel, kemudian dilakukan Uji regresi berganda, dianalisis secara deskriptif dan disajikan dalam bentuk tabel dan grafik. Hasil penelitian menunjukkan nilai total biomassa tanaman kelapa sawit dari seluruh SLH adalah sebesar 368,66 ton dengan sekuestrasi CO2 sebesar 622 ton, total biomassa gulma seluruh SLH adalah sebesar 2,62 ton dan sekuestrasi CO2 sebesar 4,42 ton, persamaan hasil regresi linier berganda yang didapat untuk total biomassa pohon adalah Biomassa(Ŷ) = -10,097 - 0,015 (U) + 0,073 (BO) + 4,2431 (DBH) + 0,801 (T) dengan nilai R = 0,98 dan R2 = 0,96. Variabel yang berpengaruh signifikan yaitu diameter (DBH) dan tinggi batang, total biomassa dan sekuestrasi karbon pada perkebunan kelapa sawit rakyat semakin tinggi dengan semakin baiknya sistem pengelolaan lahan dan sumbangan biomassa dari gulma juga mempengaruhi jumlah sekuestrasi karbon apabila tidak dilakukan pemangkasan pada lahan.
| Type: | Article |
|---|---|
| Subjects: | S Agriculture > S Agriculture (General) |
| Depositing User: | MULIDAYA HAPSYARI |
| Date Deposited: | 19 Mar 2021 01:49 |
| Last Modified: | 19 Mar 2021 01:49 |
| URI: | https://repository.unja.ac.id/id/eprint/11120 |
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