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http://repository.ipb.ac.id/handle/123456789/113140
Title: | Estimasi Kapasitas Tanaman Kelapa Sawit dalam Menyerap Polutan (Studi Kasus: PTPN VI Batang Hari, Provinsi Jambi) |
Authors: | June, Tania Salmayenti, Resti Mu'allimah, Za'immatul |
Issue Date: | 2022 |
Publisher: | IPB University |
Abstract: | Vegetasi berkontribusi terhadap pengendapan polutan. Ketinggian dan
karakteristik kanopi vegetasi memberikan pengaruh langsung terhadap besarnya
turbulensi. Turbulensi mengontrol transfer momentum menuju kanopi tanaman
yang membawa massa udara dan disertai sifat atmosfer. Penelitian ini bertujuan
menduga kapasitas kanopi tanaman kelapa sawit pada PTPN VI Batang Hari,
Provinsi Jambi dalam menyerap polutan berdasarkan analisis transfer momentum
dan menganalisis pengaruh dinamika stabilitas atmosfer serta pengaruh periode
hujan dan periode kemarau terhadap kemampuan tanaman kelapa sawit dalam
menyerap polutan. Transfer momentum ditentukan menggunakan metode
aerodinamik. Hasil penelitian menunjukkan nilai kapasitas deposisi kering pada
kondisi atmosfer stabil 2,06 x 10-3
kg/m2
, netral 3,50 x 10-3
kg/m2
, dan tidak stabil
4,35 x 10-3
kg/m2
. Nilai kapasitas deposisi kering selama periode kemarau dan hujan
masing-masing sebesar 4,5 10-3
kg/m2
dan 2,9 10-3
kg/m2
. Kondisi atmosfer
cenderung tidak stabil selama periode kemarau, sedangkan selama periode hujan
cenderung stabil. Pada kondisi atmosfer stabil turbulensi melemah sehingga
transfer momentum menurun begitupun sebaliknya. Atmosfer mengalami
pendinginan pada kondisi stabil sehingga turbulensi cenderung tertahan akibatnya
perpindahan momentum secara vertikal ke bawah sangat rendah. Penelitian ini
menunjukkan bahwa metode transfer momentum dapat digunakan untuk
mengestimasi kapasitas penyerapan polutan tipe gas oleh vegetasi. Vegetation contributes to pollutant deposition. The heights and canopy characteristics of a vegetation directly influence the turbulence magnitude surrounding it. Turbulence controls the transfer of momentum toward the plant canopies carrying mass and accompanied nature of the atmosphere. The aim of this study is to estimate the canopy capacity of oil palms at PTPN VI Batang Hari, Jambi Province to absorb pollutants based on its momentum transfer and the influence of atmospheric stability dynamics and also rainy and dry periods upon absorbed pollutants. Momentum transfer is determined using aerodynamic methods. The results showed that the dry deposition capacity value at stable, neutral, and unstable atmospheric conditions are 2.06 x 10-3 kg/m2 , netral 3.50 x 10-3 kg/m2 , and 4.35 x 10-3 kg/m2 , respectively. Dry deposition capacity value during the dry and rainy periods is 4.5 10-3 kg/m2 and 2.9 10-3 kg/m2 , respectively. Further, atmospheric conditions tend to be unstable during the dry period, while the rainy period tends to be stable. The stable conditions affect the momentum transfer decreases along the turbulence weaken and the opposite. The cooling of the atmosphere, in stable conditions, impacts the turbulence to be restrained, resulting in considerably low vertical downward momentum transfer. This research shows that the momentum transfer method can be used to estimate gas-type pollutant by vegetation. |
URI: | http://repository.ipb.ac.id/handle/123456789/113140 |
Appears in Collections: | UT - Geophysics and Meteorology |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Cover, Lembar Pernyataan, Abstrak, Lembar Pengesahan, Prakata dan Daftar Isi.pdf Restricted Access | Cover | 480.8 kB | Adobe PDF | View/Open |
G24180029_ZA’IMMATUL MU’ALLIMAH.pdf Restricted Access | Fullteks | 1.3 MB | Adobe PDF | View/Open |
Lampiran.pdf Restricted Access | Lampiran | 286.88 kB | Adobe PDF | View/Open |
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