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Soybean Adaptation to Water Stress on Vegetative and Generative Phases Andi Safitri Sacita; Tania June; I. Impron
Agrotech Journal Vol 3, No 2 (2018): Agrotech Journal (ATJ)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v3i2.843

Abstract

Soybean is rich in protein and is one of the main sources of vegetable protein which essential in enhancing public nutrition. Climate change is the main trigger of the occurance of extreme weather events makes plants become more vulnerable to drought. Drought stress significantly affect the decline in soybean production, especially when it occurs during the reproductive phase. This research aimed to identify the response of soybean  to water stress as a reference for determining the adaptive and tolerant varieties. The research was arranged in split-split plot design, with main plot was varieties (Dering and Argomulyo), the development phase (vegetative and  generative phases) as the subplot, and water stress in the form of irrigation intervals (2, 5, and 10 days) as the sub-sub plots. The results showed that water stress during the vegetative phase has not statistically significant effect on soybean production. Soybean crop adapted  to water stress by reducing the number of leaves, the leaf area, stomatal openings, as well as doing motion response by folding leaves. This crop adaptation mechanisms affecting the formation of dry matter quantity, seeds yield, water use efficiency, and radiation use efficiency
ANALISIS POLA DISPERSI PARTIKULAT DAN SULFURDIOKSIDA MENGGUNAKAN MODEL WRFCHEM DI SEKITAR WILAYAH INDUSTRI TANGERANG DAN JAKARTA (Analysis of Particulate and Sulfurdioxide Pattern Dispersion using WRFChem Model over Industrial Area In Tangerang) Ana Turyanti; Tania June; Edvin Aldrian; Erliza Noor
Jurnal Manusia dan Lingkungan Vol 23, No 2 (2016): Juli
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.18788

Abstract

ABSTRAKPeningkatan aktivitas industri dan transportasi menjadi pemicu timbulnya potensi pencemaran udara yang berdampak pada kesehatan masyarakat, terutama di sekitar wilayah industri dan kota-kota besar. Pengenalan daerah yang rawan terhadap pemaparan konsentrasi pencemar udara maksimum perlu dilakukan untuk mengantisipasi dampak terhadap kesehatan masyarakat dan lingkungan. Studi ini bertujuan untuk menganalisis sebaran pencemar udara di sekitar wilayah industri dan menentukan lokasi yang berpotensi terpapar pencemar udara dengan konsentrasi maksimum, khususnya partikulat (dalam hal ini PM10) dan sulfurdioksida (SO2). Lokasi studi adalah wilayah Jakarta dan Tangerang, yang merupakan daerah padat transportasi juga industri. Analisis dispersi menggunakan model Weather Research Forecasting / Chemistry (WRFChem) dengan ukuran grid 4 x 4 km, selama periode 5 hari (120 jam) masing-masing pada bulan Agustus dan Desember. Hasil analisis model menunjukkan lokasi yang rawan terpapar pencemar PM10 maupun SO2 dengan konsentrasi maksimum adalah Jakarta Pusat dan Jakarta Utara, secara umum terjadi pada tengah malam hingga pagi hari. Pada siang hari konsentrasi maksimum cenderung terjadi di sekitar Jakarta Selatan, Tangerang Selatan, serta Kabupaten Tangerang. Secara temporal terjadi fluktuasi konsentrasi pencemar udara, konsentrasi siang hari rendah dan meningkat menjelang malam hari hingga dini hari. Faktor meteorologi terutama pola angin sangat mempengaruhi pola sebaran pencemar di wilayah studi, dan keberadaan garis pantai juga mempengaruhi terakumulasinya pencemar di sekitar wilayah Jakarta.ABSTRACTIncreasing industrial and transportation activity were associated with air pollution, especially in urban and industrial area. The air pollution is associated with significant adverse health effects. Understanding the potential implications of the air pollution to human health, developing strategies to mitigate the pollution should be seen as a serious attention. The purpose of this study was to analyze air pollutant dispersion within industrial area and to determine the locations that potentially exposed to maximum pollutant concentrations, especially PM10 and SO2.The evaluation was conducted within Jakarta and Tangerang using a well known modelling tool ‘WRFChem’. The WRFChem was simulated for the period of 5 days (120 hours) in August and December using the grid size of 4 km x 4 km. The model shows that the maximum concentrations of PM10 and SO2 occurred within Central Jakarta and the North Jakarta, frequently found from the midnight to morning. While during the day time, the maximum concentration tend to occur within the region of South Jakarta, South Tangerang, and Tangerang Regency. Diurnal fluctuation shows the pollutant concentrations are increased at night and decreased after sunrise. Meteorological factors, mainly wind direction, affects the pollutants dispersion in the area of study, and the existence of the shoreline also affects pollutants accumulation around Central Jakarta.
HUJAN ASAM DAN LEACHING Fe KE DALAM AIR SUMUR DI WILAYAH INDUSTRI - Sutanto; Ani Iryani; Syaiful Anwar; Tania June
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 11, No 1 (2011): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v11i1.247

Abstract

Wilayah Cibinong-Citeureup terdapat banyak industri, berdebu, dan telah mengalami hujan asam. Salah satu dampak hujan asam adalah degradasi kualitas air sumur. Lebih kurang 75% penduduk di wilayah ini yang memanfaatkan air sumur sebagai air minum. Telah dipelajari distribusi dan dampak hujan asam terhadap peningkatan kadar Fe dalam air sumur. Monitoring air hujan dilakukan pada 30 menit pertama hujan pada 16 lokasi dari tahun 1999 sampai 2009. Data keasaman air hujan setiap tahun dipetakan menggunakan program sufer 6, selanjutnya dilakukan overlay dan diidentifikasi daerah yang mengalami hujan asam intensitas tinggi secara terus-menerus. Monitoring kadar Fe air sumur dilakukan pada 16 lokasi sumur dari tahun 1999 sampai 2009. Keasaman air diukur menggunakan pH meter elektronik, dan Fe ditentukan dengan metoda o-fenantrolin menggunakan spektrofotometer UV-VIS. Hasil penelitian menunjukkan bahwa daerah yang terus-menerus mengalami hujan asam intensitas tinggi (pH5,0) terjadi seluas 4 km2. Dalam daerah hujan asam intensitas tinggi ini keasaman air hujan terus meningkat dari tahun 1999-2009. Peningkatan keasaman air hujan  menyebabkan leaching Fe ke dalam air sumur secara nyata (P 0,049, 95%). Kata kunci :  Hujan asam,, leaching, Fe,  air sumur, industri
ESTIMASI KETINGGIAN PLANETARY BOUNDARY LAYER INDONESIA MENGGUNAKAN DATA ECMWF REANALYSIS ERA-INTERM Vivi Fitriani; Ahmad Bey; Tania June
Jurnal Meteorologi dan Geofisika Vol. 18 No. 1 (2017)
Publisher : Pusat Penelitian dan Pengembangan BMKG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31172/jmg.v18i1.283

Abstract

Planetary Boundary Layer (PBL) merupakan bagian dari troposfer yang mendapat pengaruh secara langsung dari permukaan bumi, yang memiliki peranan penting dalam iklim, cuaca dan kualitas udara. PBL dikenal sangat sulit untuk diobservasi dari luar angkasa dikarenakan strukturnya yang sangat kompleks dan berubah-ubah. Salah satu properties yang paling relevan dan fundamental untuk diselidiki adalah ketinggian PBL. Ketinggian PBL dihitung menggunakan tujuh metode berbasis gradien dari kelembaban relatif (RH), temperatur virtual (Tv), temperatur potensial ( ), temperatur potensial virtual ( ), kelembaban spesifik (q), refraktiviti atmosfer (N), dan Kecepatan angin (V) yang diperoleh dari data ECMWF Reanalisis Era Interm selama enam bulan di wilayah 100LU–100LS, 900BT –1500BT dengan resolusi spasial 2.50 x 2.50. Beberapa metode menunjukkan hasil yang indentik untuk ketinggian PBL pada waktu dan tempat tertentu. Metode gradien  dan V konsisten memberikan ketinggian PBL yang tinggi, sementara metode q dan N menghasilkan ketinggian PBL terendah signifikan. Tingginya variasi bulanan dan harian umumnya ditemukan diseluruh wilayah daratan, sedangkan wilayah lautan relatif konstan. Beberapa sumber dari kedua parametrik dan struktur ketidakpastian dari nilai ketinggian PBL diestimasi secara statistik menggunakan lima uji statistik, yaitu uji Student’s t, Uji F, Uji Kormogoorv Sminorv, Uji Korelasi Pearson, dan Uji Korelasi NonParametrik Spearman. Ditemukan adanya perbedaan yang signifikan secara statistik antara ketujuh metode. Rata-rata median ketinggian PBL berbeda ratusan hingga ribuan meter untuk kebanyakan metode yang dibandingkan. Estimasi ketinggian PBL di Indonesia menggunakan metode RH berada di ketinggian 2000 m-4000m pada siang hari dan pada malam hari berada di bawah 2500  m.
Kuantifikasi Kontribusi Faktor Iklim Terhadap Variasi Produktivitas Tanaman Kelapa Sawit Pradiko, Iput; Hariyadi, Hariyadi; June, Tania
Jurnal Penelitian Kelapa Sawit Vol 31 No 2 (2023): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v31i2.222

Abstract

The yield of oil palm is heavily influenced by various climatic conditions, including rainfall (RF), radiation (Qs), temperature, and humidity. To quantify the impact of these factors, a study was conducted on a 15-year-old palm located in an oil palm estate in Pangkalan Lima Puluh Kota, West Sumatra, Indonesia. The study used climate data from 2011-2019 and yield data from 2015 and 2019. To determine the contribution of RF, Qs, and VPD / vapour pressure deficit, which was estimated from temperature and humidity, a computer-intensive importance metric developed by Lindemann, Merenda, and Gold (LMG metric) was utilized. The results showed that RF, Qs, and VPD collectively accounted for 50.16% of yield fluctuations at the study site. Furthermore, the contribution of climate factors on yield followed the order of VPD > Qs > RF.
Strategi Mitigasi Urban Heat Island (UHI) di Kawasan Metropolitan Sari, Dyah Lukita; June, Tania; Hidayat, Rahmat; Perdinan; Hanggoro, Wido; Arifin, Hadi Susilo
Policy Brief Pertanian, Kelautan, dan Biosains Tropika Vol 6 No 2 (2024): Policy Brief Pertanian, Kelautan dan Biosains Tropika
Publisher : Direktorat Kajian Strategis dan Reputasi Akademik IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agro-maritim.0602.838-843

Abstract

Kekhawatiran terhadap paparan suhu tinggi dalam jangka waktu lama yang dapat berdampak serius terhadap kesehatan manusia, produktivitas dan infrastruktur terjadi di banyak negara berkembang terutama yang terletak di wilayah tropis. Kawasan metropolitan menghadapi risiko tambahan akibat dampak UHI ini dikarenakan kondisi kepadatannya, dan desain pemukiman yang tidak terencana. Sementara itu, penduduknya kurang mempunyai kemampuan finansial untuk memitigasi dampak. Kemampuan untuk menghindari, mengelola dan membangun ketahanan terhadap dampak UHI di masa depan akan tergantung pada keputusan yang diambil saat ini. Policy brief ini menyoroti peluang-peluang utama untuk mitigasi UHI dalam bidang perencanaan kota, energi, dan penghijauan diantaranya dengan instalasi permukaan reflektif (cool roof, cool pavement, dan cool wall) serta infrastruktur hijau (green roof dan kanopi tanaman). Desain perkotaan dan investasi infrastruktur, kesenjangan sosial ekonomi, dan risiko perubahan iklim harus dikelola secara bersamaan. Tindakan yang diperlukan termasuk mereformasi standar bangunan, melakukan tinjauan kerentanan, dan berinvestasi pada infrastruktur yang dibangun untuk menahan serta meminimalkan paparan panas guna mewujudkan “cool city”, kota yang lebih sejuk.
Pemodelan Dinamika CO2 Pada Tanaman Kelapa Sawit Kii, Meriana Ina; June, Tania; Santikayasa, I Putu
Agromet Vol. 34 No. 1 (2020): JUNE 2020
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (554.343 KB) | DOI: 10.29244/j.agromet.34.1.42-54

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Oil palm plantation has a high potency to absorb carbon. Limited observed data and expensive instrumentations to measure the absorbed carbon have caused an inaccurate estimation of carbon storage from oil palm. The objectives of this research were to develop a CO2 absorption model, and to calculate the carbon cycle based on climate factors and plant age. CO2 absorption was derived from gross primary production (GPP) and net primary production (NPP), which were ​​based on solar radiation. From NPP we derived net ecosystem exchange (NEE) by calculating the difference between NPP and soil respiration. Our results showed that age of oil palm has influenced the CO2 absorption from 9.8 (1 year) to 117 tons ha-1 year-1 (19 years), with average of 86.5 tons ha-1 year-1 (over 25-year life cycle). We validated our NPP model with biomass that indicated a very good performance of the model with R2 0.95 and RMSE 1.81. Meanwhile, the performance of NEE model was slightly lower (R2 0.71 and 0.72, for wet and dry conditions), but the model had a similar pattern with the measured NEE. Based on the model performance, the findings imply that the model is useful to estimate CO2 absorption, where there is no eddy covariance measurement. This research suggests that carbon modeling will contribute to global terrestrial carbon modeling.
Applied Different Pixel Selection in METRIC Model for Estimating Spatial Daily Evapotranspiration of Oil Palm in East Kalimantan Province, Indonesia Dhohir, Nur Muhammad Abdul; June, Tania
Journal of Statistics and Data Science Vol. 2 No. 1 (2023)
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jsds.v2i1.24805

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Determination of evapotranspiration (ET) plays a key role in managing water in oil palm plantations. Several energy balances models have been developed for mapping evapotranspiration regionally. Subsequently, this study aims to estimate daily evapotranspiration in oil palm plantation using the METRIC model, where pixel selection used and corrected by hot and cold pixels. The climate data were collected from ERA-5 Reanalysis and Landsat 8 was used for spatial analysis. The result depicts the means ± standard deviation of ET without pixel selection (with pixel selection), specifically for oil palms age of 4, 6, 7, 8, 9, 11, 12 and 13 years were 3.19 ± 1.62 mm d-1, 3.31 ± 1.14 mm d-1, 4.01 ± 0.96 mm d-1, 4.84 ± 0.87 mm d-1, 6.29 ± 0.43 mm d-1, 5.72 ± 0.44 mm d-1, 6.43 ± 0.23 mm d-1 and 6.21 ± 0.33 mm d-1 (4.22 ± 0.49 mm d-1, 3.99 ± 0.22 mm d-1, 2.96 ± 0.34 mm d-1, 3.14 ± 0.33 mm d-1, 4.22 ± 0.49 mm d-1, 3.99 ± 0.22 mm d-1, 4.26 ± 0.24 mm d-1 and 4.18 ± 0.30 mm d-1), respectively. We have found more accurate ET determination with pixel selection (higher coefficient of determination).
Projection of further expansion of oil palm plantation in Jambi Province June, Tania; Ma'rufah, Ummu; Faqih, Ahmad; Koesmaryono, Yonny; Ali, Ashehad Aswen; Knohl, Alexander
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 13 No 3 (2023): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.13.3.484-493

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The expansion of oil palm plantations has become of global concern. Jambi province in Indonesia is one of the regions experiencing a rapid shift in land use, and oil palm plantation, settlement, and agriculture has emerged as the primary force behind this shift. This study aims to project scenarios of future land-use change and expansion of oil palm plantation in Jambi Province in 2030, 2060, and 2100. Projections of land-use change scenarios are conducted using the Land Change Modeler (LCM) in which Cellular Automata Markov (CA-Markov) is the model base. The validation of model against historic land-use changes showed an overall kappa value of 0.97. In the no-conservation scenario assuming a continuation of the trends from 1990 to 2011, the forest area is continuing to decrease. . Oil palm would replace forest as dominant land-use cover in Jambi Province in 2100. Driving factors explaining the spatial distribution of oil palm plantation expansion include distance from forest, distance from road, and elevation. Our study shows the importance of government regulations to to slow or stop deforestation especially for forests near plantations.
Efisiensi Penggunaan Radiasi Matahari dan Respon Tanaman Kedelai (Glycine max L.) terhadap Penggunaan Mulsa Reflektif Mubarak, Syahrun; ,, Impron; June, dan Tania
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 46 No. 3 (2018): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (630.504 KB) | DOI: 10.24831/jai.v46i3.18220

Abstract

One of factors affecting the productivity of soybean crop is the availability of solar radiation. Reduction of solar radiation reaching soybean crop by cloud cover especially during rainy season or by shade of trees could potentially decrease soybean production. The availability of radiation for the crop can be increased through the use of reflective mulch to reflect back transmitted radiation to the crop canopy. This study aimed to determine the effect of shade and reflective mulch on crop solar radiation balance and crop productivity responses. A field experiment in Bogor, Indonesia in July 2016 to January 2017, was conducted, applying a Nested Design-two factors model with three replications. The first factor was two levels of shading, i.e., without and with 50% shade; and the second factor was three levels, i.e., without mulch, black silver mulch, and metallic mulch. The results showed that the use of mulch influenced the radiation balance of plants, increasing distribution of radiation reception in plants, solar radiation interception and RUE. The use of mulch caused changes in canopy structure by increase LAI, so that the inhibited radiation was higher. The reflected radiation from the mulch increased production per plants and weight of 1,000 seeds in shaded plants.Keywords: black silver mulch, metallic mulch, radiation balance, radiation interception, shading
Co-Authors ,, Impron - Sutanto ABDUL RAUF Ade Irawan Ahmad Bey Ahmad Bey Ahmad Faqih Akhmad Faqih Alexander Knohl Alexander Knohl Alexander Knohl Ali, Ashehad Aswen Ana Meijide Ana Turyanti Andi Safitri Sacita Ani Iryani Antonius B. W. Ari Suharto Aris Pramudia Aris Pramudia Artika Ashehad Ashween Ali Bambang Sapto P Budi Kartiwa Christian Stiegler Christian Stiegler Christian Stiegler Dhohir, Nur Muhammad Abdul Dodik Ridho Nurrochmat Dyah Lukita Sari, Dyah Lukita Edvin Aldrian Eleonora Runtunuwu Eleonora Runtunuwu Elza Surmaini Erliza Noor Felia Rizky Aulia G. Gravenhorst GRAVENHORsr Hadi Susilo Arifin Handoko Handoko Hariyadi, Hariyadi Haruna Herlina Ika Ratnawati Hermawan, Rachmad Hidayat Pawitan I Wayan Astika IBROM, ANDREAS Impron Impron Irsal Las Iryani, Ani Kharmila S. Hariyanti Kii, Meriana Ina Knohl, Alexander M. Ardiansyah M. BL. de Rozari Ma'rufah, Ummu Misnawati, Misnawati Moh. Yani Mubarak, Syahrun Mujito Mujito Naimatu Solicha Nasibatul Mahmudah Ni Wayan Srimani Puspa Dewi Ni Wayan Srimani Puspa Dewi P. Perdinan Pradiko, Iput Rahmat Hidayat Rahmat Hidayat Rahmat Hidayat Resti Salmayenti Retno Larasati Rinandyta, Kharisma Rini Hidayati Rita Nurmalina Rizaldi Boer Salis Deris Artikanur Santikayasa, I Putu Sarvina, Yeli Siti Nadia Nurul Azizah Sonya Dewi Suman Sangadji Suria Darma Tarigan Surjono Hadi Sutjahjo Surmaini, Elza Sutanto, - Syaiful Anwar Tommy Harianto Tsamarah Nada Saninah Ummu Ma'rufah Ummu Ma'rufah Vivi Fitriani Vonny Koesmaryono Wido Hanggoro Yeli Sarvina Yon Sugiarto Yon Sugiarto Yonni Koesmaryono Yonny Koesmaryono Yudha Kristanto Yudi Riadi FanggidaE Yudi Setiawan Za’immatul Mu’allimah