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Analisis Fitokimia Potensi Daun Tumbuhan Sebagai Pestisida Nabati Untuk Pengendalian Ulat Grayak (Spodoptera Litura) dalam Konteks Pertanian Ramah Lingkungan Farisi, Idcha Sumantara Al; Juliany, Niza; Nasution, Bagas Arya; Trihapsari, Anisa; Sufiani, Sufiani; Yolanda, Yuni
Jurnal Teknologi Lingkungan Lahan Basah Vol 12, No 4 (2024): Oktober 2024
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v12i4.80923

Sektor pertanian memainkan peran penting dalam ekonomi Indonesia, namun menghadapi tantangan dalam pengendalian hama dan penyakit tanaman yang dapat mengancam ketersediaan pangan berkualitas. Penggunaan pestisida kimia, meskipun efektif, menimbulkan dampak negatif terhadap lingkungan dan kesehatan manusia. Oleh karena itu, pengembangan pestisida nabati dari bahan alami seperti daun lamtoro (Leucaena leucocephala), daun kelor (Moringa oleifera), daun maja (Aegle marmelos), dan daun kirinyuh (Chromolaena odorata) menjadi penting. Studi ini melakukan analisis fitokimia terhadap keempat jenis daun tersebut untuk mengevaluasi potensi mereka sebagai pestisida nabati, dengan fokus pada senyawa-senyawa seperti flavonoid, alkaloid, steroid, tanin, saponin, fenol/hidroquinon, dan terpenoid. Hasil analisis menunjukkan bahwa daun kirinyuh memiliki kandungan senyawa yang paling lengkap, termasuk saponin yang berperan penting dalam pengendalian hama. Daun lamtoro dan daun maja juga menunjukkan potensi yang baik dengan kandungan steroid yang lebih tinggi, sementara daun kelor efektif berkat kandungan alkaloid dan flavonoid yang tinggi.

Konsentrasi C-organik dan substrat sedimen di perairan Pelabuhan Belawan Medan Yuni Yolanda; Hefni Effendi; B Sartono
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 3, No 2 (2019)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.3.2.300-308

Penelitian ini bertujuan mengetahui konsentrasi C-organik dan substrat pada sedimen di perairan Pelabuhan Belawan, serta melihat korelasi antar keduanya. Lokasi penelitian dilakukan di DLKr dan DLKp Pelabuhan Belawan Medan dengan pengambilan sampel secara random sampling sebanyak 10 sampel. Analisis data menggunakan analisis korelasi Pearson product moment. Hasil penelitian menunjukkan konsentrasi C-organik berkisar 0,26–2,74%. Konsentrasi substrat pasir 61–99%, lumpur 1–29%, dan liat 0–18%. C-organik memiliki korelasi positif terhadap nilai interpretasi substrat lumpur (0,769), namun berkorelasi negatif terhadap substrat pasir (-0,816). Semakin halus substrat sedimen, kandungan C-organik akan semakin meningkat.

PENGARUH DEFORESTASI TERHADAP TEMPERATUR, KELEMBABAN, CURAH HUJAN, DAN PENYINARAN MATAHARI: STUDI KASUS DI SUMATERA UTARA Yolanda, Yuni
Hexagon Vol 6 No 2 (2025): Vol. 6 No. 2 (2025): HEXAGON - Edisi 12
Publisher : Fakultas Teknologi Lingkungan dan Mineral - Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/hexagon.v6i2.5920

Climate change due to deforestation is a hot global issue today. This study analyzes the effect of deforestation on temperature, humidity, rainfall, and sunshine duration in North Sumatra Province during the period 2013-2022. A quantitative approach was used with deforestation data from the Ministry of Environment and Forestry (KLHK) and climate data from the Meteorology, Climatology and Geophysics Agency (BMKG). Pearson Product Moment correlation analysis was performed using SPSS version 29. The results showed that the average deforestation in North Sumatra reached 9,884.79 hectares per year. The correlation analysis showed a very weak to low negative relationship between deforestation and the four climate parameters analyzed, namely rainfall (r = -0.292), sunshine duration (r = -0.173), air temperature (r = -0.086), and air humidity (r = -0.056). Statistically, no significant relationship (p>0.05) was found between deforestation and climate variables, most likely due to the limited number of annual samples. This study identified that local factors such as the presence of the large Lake Toba and the conversion of deforested land to plantations act as moderators of the microclimate. This explains the impact of deforestation on temperature and humidity in this region is not always significant as theoretically assumed. Correlations between climate variables also show complex interactions, such as a very strong negative relationship between temperature and humidity (r=-0.974; p<0.001). This study provides important insights into the complexity of deforestation and microclimate interactions in a unique tropical region such as North Sumatra.

Utilization of domestic wastewater for the growth of microalgae Chlorella sp. Yolanda, Yuni; Hutasoit, Jenri P; Fitria, Laili; Anggamulia, Muh. Ilham; Putri, Anni Zahara; Pane, Fikryah Atikah; Nasution, Bagas Arya
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.41376

This study investigates the potential of using domestic wastewater as a growth medium for Chlorella sp. and examines how it affects water quality over a period of 24 days. The experiment was conducted using a Completely Randomized Design (CRD) with a single factor: four levels of domestic wastewater concentration0%, 25%, 50%, and 75%each tested in three replicates.The results showed that the highest biomass production occurred on day 8, reaching 0.337 mg/L in the 75% wastewater treatment (TR3), while the lowest was observed in the control group (C) at 0.210 mg/L. Statistical analysis using ANOVA followed by the Tukey test confirmed that the differences between treatments were significant (p 0.05). Correlation analysis showed a strong positive correlation between biomass and dissolved oxygen (DO, 0.949) and temperature (0.626), indicating that optimal light intensity and nutrient availability promote photosynthesis and biomass growth. In contrast, phosphate was negatively correlated with temperature (-0.738), suggesting that higher temperatures accelerate phosphate uptake by Chlorella sp. The study concludes that cultivating Chlorella sp. using domestic wastewater presents a sustainable solution for both biomass production and wastewater treatment. The microalgae help remove excess nutrients like nitrogen and phosphorus, enhancing water quality. However, as the algae decompose, they can also contribute to higher biological oxygen demand (BOD). This dual role underscores the promising potential of microalgae in promoting ecological wastewater management while supporting sustainable biomass production.Keywords:BiomassChlorella sp.Photobioreactorwastewater

Utilization of domestic wastewater for the growth of microalgae Chlorella sp. Yolanda, Yuni; Hutasoit, Jenri P; Fitria, Laili; Anggamulia, Muh. Ilham; Putri, Anni Zahara; Pane, Fikryah Atikah; Nasution, Bagas Arya
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.41376

This study investigates the potential of using domestic wastewater as a growth medium for Chlorella sp. and examines how it affects water quality over a period of 24 days. The experiment was conducted using a Completely Randomized Design (CRD) with a single factor: four levels of domestic wastewater concentration0%, 25%, 50%, and 75%each tested in three replicates.The results showed that the highest biomass production occurred on day 8, reaching 0.337 mg/L in the 75% wastewater treatment (TR3), while the lowest was observed in the control group (C) at 0.210 mg/L. Statistical analysis using ANOVA followed by the Tukey test confirmed that the differences between treatments were significant (p 0.05). Correlation analysis showed a strong positive correlation between biomass and dissolved oxygen (DO, 0.949) and temperature (0.626), indicating that optimal light intensity and nutrient availability promote photosynthesis and biomass growth. In contrast, phosphate was negatively correlated with temperature (-0.738), suggesting that higher temperatures accelerate phosphate uptake by Chlorella sp. The study concludes that cultivating Chlorella sp. using domestic wastewater presents a sustainable solution for both biomass production and wastewater treatment. The microalgae help remove excess nutrients like nitrogen and phosphorus, enhancing water quality. However, as the algae decompose, they can also contribute to higher biological oxygen demand (BOD). This dual role underscores the promising potential of microalgae in promoting ecological wastewater management while supporting sustainable biomass production.Keywords:BiomassChlorella sp.Photobioreactorwastewater

Mangrove Nursery as Environmental Recovery Efforts in Aquaculture Pond Area, Utan Sub-District, Sumbawa Komarudin, Nurul Amri; Yolanda, Yuni; Mawardin, Adi; Hutasoit, Jenri Parlinggoman
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 9 No. 1 (2024): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v9i1.13457

Geographically, the Utan sub-district is located in the coastal region of Sumbawa Regency, with abundant fisheries and marine potential. One of the potentials in the Utan sub-district is shrimp farming. Meanwhile, the management of natural resources in coastal forest areas so far tends to be less improved; this is due to various reasons, such as the lack of public awareness of the importance of coastal greenery and maintenance of existing coastal forests. Through the mangrove nursery program as an effort to restore the environment in the pond cultivation area, in Utan District, Sumbawa, it is hoped that it can raise awareness and the community's active role in the importance of a healthy environment. The results show that his community service succeeded in forming mangrove farmer groups, fostering mangrove farmer groups by conducting periodic education, and building mangrove nurseries. This mangrove nursery is managed directly by a group of mangrove farmers and has succeeded in producing 2,500-4,000 mangrove seedlings and successfully marketing them. In conclusion, this community service activity was successfully carried out and proved to improve farmers' welfare around the ponds. In addition, with this mangrove nursery, the community can contribute to the planting process so that a lot of carbon is absorbed in the atmosphere so that the air quality in the Sumbawa environment is of high quality. This means that the economy, society, and environment will be sustainable.

HUBUNGAN ANTARA SUHU, SALINITAS, PH, DAN TDS DI SUNGAI BRANG BIJI SUMBAWA Yolanda, Yuni; Mawardin, Adi; Komarudin, Nurul; Risqita, Eriza; Ariyanti, Janu Andina
Jurnal Teknologi Lingkungan Lahan Basah Vol 11, No 2 (2023): Juli 2023
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v11i2.67133

Sungai Brang Biji mendapatkan tekanan akibat berbagai aktivitas antropogenik yang mengakibatkan sumber daya air permukaan di Kabupaten Sumbawa semakin terbatas karena terjadinya masukan pencemaran dan kekeringan. Kualitas air menjadi tolak ukur keberlanjutan ekosistem perairan sungai diantaranya suhu, pH, salinitas, dan TDS yang merupakan parameter kunci untuk mengontrol komponen yang ada di kolom air. Tujuan dari penelitian ini adalah untuk mengetahui hubungan antara suhu, pH, salinitas, dan TDS di Sungai Brang Biji. Data yang digunakan dalam penelitian ini merupakan data primer yang langsung diukur di lapangan menggunakan water quality tes pen. Sedangkan metode yang digunakan untuk menganalisis pengaruh menggunakan metode Pearson Product Moment. Konsentrasi parameter kualitas air; suhu (24,2 "“ 30,3 °C), pH (6,70-6,98), salinitas (0-43,50 ppm), dan TDS (57-4330 mg/l). Semakin mengarah ke hilir sungai konsentrasi suhu, pH, dan salinitas semakin tinggi pula, sedangkan konsentrasi pH tertinggi terdapat pada St 3 wilayah Desa Kerekeh. Korelasi yang sangat kuat yaitu suhu dan salinitas bernilai 0,902. Parameter yang tidak memiliki korelasi yaitu suhu dan pH bernilai -0,245. Perubahan salah satu parameter akan mempengaruhi parameter lainnya dan berdampak pada perubahan kualitas air. Pembangunan kanal sungai merupakan solusi terbaik untuk mengatasi sumber daya air permukaan di Sumbawa tetap berkelanjutan.

Analisis Status Mutu Perairan Pelabuhan Belawan Medan Berdasarkan Indeks STORET dan Indeks Pencemaran Yolanda, Yuni
Jurnal Sumberdaya Akuatik Indopasifik Vol 8 No 4 (2024): November
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2024.Vol.8.No.4.312

Belawan Harbor of North Sumatra is the third-busiest seaport in Indonesia and a gateway to the economic activity in the respective area. This study aimed to analyze the harbor water quality status and its sources of pollution. The data used for this study was the secondary data from the book of harbor environmental management and observations in 2015-2018 and the governmental regulation number 22 of 2021 on the harbor water quality standards. The observation was conducted in 14 different stations. The data obtained was then analyzed using STORET and pollution index to determine the quality status then using Pearson correlation to correlate the data. The results showed that according to the pollution index method, the water in Belawan Harbor is categorized as in good condition (comply with the water standard). However, according to the STORET method, the harbor water quality status is in mild pollution categories. The ocean fishing harbor of Belawan (station 7) and Deli estuary (station 8) have the highest number of pollutants. Overall, the water status in the harbor of Belawan is within the threshold of the designated water standard. The polluted conditions generated from anthropogenic activity such as industrial, fishing and agriculture activity and also affected by the geographical location of the habor which located in the estuary area. In addition, the temperature, turbidity, and salinity are the main factors affecting the water ecosystem in Belawan Harbor.

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