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Curah Hujan Terhadap Produktivitas Padi Dan Ubi Kayu: Analisis Statistik Di Kabupaten Serdang Bedagai Arinda, Dela; Afifi, Annida Fauziyyatul; S, Safrizal; Marsudi, Sundari
Jurnal Sains Agro Vol 10, No 1 (2025): Jurnal Sains Agro
Publisher : Universitas Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36355/jsa.v10i1.1764

Abstract

Rainfall is one of the climatic factors that influences the productivity of food crops. This study aims to analyze the relationship between rainfall and the productivity of rice and cassava in Serdang Bedagai Regency. The data used are annual secondary data for the period 2013–2024, consisting of rainfall records and the productivity of rice and cassava commodities. The relationship was analyzed using Pearson correlation and simple linear regression methods. The results show that rainfall has a positive and significant relationship with rice productivity, with a correlation coefficient of 0.70 and an R² value of 0.489, indicating that nearly 49% of the variation in rice productivity can be explained by rainfall. Meanwhile, the relationship between rainfall and cassava productivity is positive but not statistically significant (r = 0.60; R² = 0.37; p 0.05), indicating a weaker influence. The effect of rainfall is more evident on rice productivity compared to cassava. These findings highlight the need for improved water management and climate adaptation strategies, particularly in the rice farming systems of Serdang Bedagai Regency.
Analisis Kandungan Logam Berat Timbal (Pb) Pada Air Dan Kepiting Bakau (Scylla spp.) di Perairan Desa Jaring Halus, Sumatera Utara Ifanda, Dayun; Tambunan, Hardiansyah; Tresia Silalahi, Hanna; Marsudi, Sundari; Br Sinulingga, Virna
Jurnal Aquaculture Indonesia Vol 4, No 2 (2025)
Publisher : Prodi Akuakultur Fakultas Perikanan Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/jai.v4i2.6221

Abstract

Kepiting bakau merupakan salah satu biota laut yang ada di Desa Jaring Halus, sebuah lokasi yang memiliki banyak potensi perairan. Salah satu jenis biota perairan yang memiliki nilai ekonomi cukup tinggi adalah kepiting, beberapa produk turunannya memiliki potensi dan pasar yang cukup besar. Pengujian logam berat timbal (Pb) harus dilakukan untuk memastikan standar keamanan dan kualitas makanan. Menentukan jumlah logam berat pada kepiting dan bioamplifikasi logam berat pada biota yang bersangkutan merupakan tujuan dari penelitian ini. Metodologi penelitian ini melibatkan analisis laboratorium dengan alat Atomic Absorption Spectroscopy (AAS). Kepiting di Desa Jaring Halus memiliki kadar logam berat Pb sebesar 0,0157 mg/kg di stasiun I, 0,0142 mg/kg di stasiun II, dan 0,0148 mg/kg di stasiun III. Nilai Pb sebesar 0,5 mg/kg yang merupakan batas baku mutu yang ditetapkan oleh SNI 7387:2009, logam berat pada kepiting sebagian besar masih dianggap aman untuk dikonsumsi manusia karena belum melampaui baku mutu. Faktor biokonsentrasi (BFC) kurang dari <250, yang menunjukkan bahwa kepiting memiliki kapasitas yang rendah untuk menyerap timbal (Pb).
Penggunaan sosial media terhadap keberlanjutan ekowisata Silalahi, Hanna Tresia; Ifanda, Dayun; Marsudi, Sundari; Tambunan, Hardiansyah
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 4 (2025): Juli
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i4.32142

Abstract

Abstrak Media sosial saat ini sudah sangat melekat bagi semua orang. Pentingnya dalam mengelola sosial media dengan baik dapat menjaga lingkungan terkhusus ekowisata. Ekowisata mempunyai banyak manfaat, tidak hanya dirasakan oleh manusia tetapi juga bermanfaat bagi lingkungan, flora serta fauna yang ada. Dengan banyaknya pengunjung yang datang ke lokasi ekowisata diharapkan ekowisata yang ada di Indonesia dapat berkelanjutan. Pengabdian ini dilakukan di SMA Swasta Buddhis Bodhicitta Medan pada hari Jumat, 14 Maret 2025 dengan jumlah peserta sebanyak 40 (empat puluh) siswa/i kelas X SMA Swasta Buddhis Bodhicitta Medan. Pengabdian ini diawali dengan para dosen memperkenalkan diri serta memberikan pretest tentang ekowisata dan peran dari sosial media kepada peserta. Kemudian pemaparan materi oleh dosen, setelah itu dilanjutkan pembagian posttest kepada peserta. Sesi tanya jawab juga dilakukan mengenai pembuatan promosi yang baik dan seputar ekowisata yang ada di Indonesia. Kegiatan ini diakhiri dengan pelatihan membuat promosi melalui sosial media pribadi peserta. Selanjutnya dilakukan dengan memberikan materi berupa informasi penggunaan sosial media, ekowisata, dan contoh yang tepat dalam melakukan promosi.  Pemahaman mengenai promosi ekowisata terhadap anak-anak generasi Z membuat para siswa sadar akan menjaga ekowisata. Selain itu juga akan mempunyai dampak yang baik bagi mereka terhadap pemakaian sosial media. Hasil pretest yang menunjukkan pemahaman yang baik ada 11 orang, pemahaman yang sedang ada 10 orang, sedangkan pemahaman yang kurang ada sebanyak 19 orang. Sedangkan untuk hasil posttest menunjukkan pemahaman yang baik ada 30 orang, pemahaman yang sedang ada 9 orang, sedangkan pemahaman yang kurang ada sebanyak 1 orang. Dengan adanya kegiatan ini diharapkan dapat menambah wawasan dan pengetahuan tentang ekowisata dan cara mempromosikannya. Kata kunci: ekowisata; sosial media; pengabdian; generasi z; lingkungan Abstract Social media is now very attached to everyone. The importance of managing social media well can protect the environment, especially ecotourism. Ecotourism has many benefits, not only felt by humans but also benefits the environment, existing flora and fauna. With the many visitors who come to ecotourism sites, it is hoped that ecotourism in Indonesia can be sustainable. This service was carried out at SMA Swasta Buddhis Bodhicitta Medan on Friday, March 14, 2025 with 40 (forty) participants from class X SMA Swasta Buddhis Bodhicitta Medan. This service began with the lecturers introducing themselves and giving pretests about ecotourism and the role of social media to the participants. Then the presentation of the material by the lecturer, after which the posttest was distributed to the participants. A question and answer session was also held regarding making good promotions and about ecotourism in Indonesia. This activity ended with training in making promotions through the participants' personal social media. Furthermore, it is carried out by providing material in the form of information on the use of social media, ecotourism, and appropriate examples of promotion.  Understanding the promotion of ecotourism to generation Z children makes students aware of maintaining ecotourism. It will also have a good impact on their use of social media. The pretest results showed a good understanding of 11 people, a moderate understanding of 10 people, while a lack of understanding was 19 people. As for the posttest results, there were 30 people with good understanding, 9 people with moderate understanding, and 1 person with poor understanding. With this activity, it is hoped that it can add insight and knowledge about ecotourism and how to promote it. Keywords: ecotourism; social media; service; generation z; environment
Review Literatur: Dampak Perubahan Iklim terhadap Satwa Liar Marsudi, Sundari; Ifanda, Dayun; Tambunan, Hardiansyah; Silalahi, Hanna Tresia; Arinda, Dela
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.583

Abstract

Climate change is one of the most significant global threats to the survival of wildlife, particularly in tropical regions that harbor high biodiversity yet remain vulnerable to environmental pressures. This study aims to examine the impacts of climate change on the distribution, phenology, behavior, and physiological responses of wildlife through a literature review of 23 scientific articles published between 2015 and 2025. The findings indicate that species with narrow habitat ranges and high sensitivity to temperature are especially vulnerable to climate change, particularly when compounded by anthropogenic disturbances such as deforestation and habitat fragmentation. Various impacts of climate change have been identified in tropical wildlife. Montane forest-endemic birds in the Andes have shifted to higher elevations due to rising temperatures, while Southeast Asian amphibians are threatened by declining microhabitat humidity. Changes in reproductive rhythms are evident in African wild dogs (Lycaon pictus), which have experienced shifts in their birthing seasons. In addition, increased nocturnal activity has been observed in large mammals in Africa and Asia as a response to thermal stress. Adaptive conservation strategies discussed include the establishment of ecological corridors, habitat restoration, and species distribution modeling. A science-based conservation approach is essential to address future ecological challenges.