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Analysis of microbial diversity in pesticide-contaminated soil: A study of culturable microorganisms Lamuka, Andre Putra; Aliwu, Putri Liani
Environmental and Materials Vol. 2 No. 2: (December) 2024
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/eam.v2i2.2024.1435

Abstract

Background: Pesticide contamination of soil often leads to significant alterations in the structure and diversity of microbial communities, potentially affecting overall ecosystem function. Understanding these changes is crucial for assessing the ecological impact of pesticide use in agricultural areas. This study analyzes microbial diversity in pesticide-contaminated soil using the Shannon-Wiener diversity index to evaluate the effects of pesticide exposure on microbial populations. Methods: A descriptive quantitative approach was used, incorporating the Total Plate Count (TPC) test and Shannon-Wiener Index analysis. The numerical data included the number of microbial individuals (bacteria and fungi) and the relative proportion of each group. Soil samples were purposively collected from three points in a pesticide-contaminated tomato farming area in Dunggala Village, Gorontalo Regency. Findings: The microbial community detected in the contaminated soil consisted of bacteria (2.5×10⁴ CFU/ml) and fungi (1.35×10³ CFU/ml). The Shannon-Wiener index value was 0.202, indicating low microbial diversity. This suggests that pesticide contamination negatively impacts microbial richness and evenness in the soil. Conclusion: Pesticide contamination significantly reduces microbial diversity, as reflected in the low Shannon-Wiener index value. This decline in microbial richness and evenness highlights the potential ecological consequences of pesticide use in agriculture. To mitigate these negative effects, implementing sustainable pest management practices, such as the use of biopesticides, is recommended. Novelty/Originality of this article: This study provides quantitative evidence of the decline in microbial diversity in pesticide-contaminated soil using the Shannon-Wiener index. By focusing on microbial community changes in a specific agricultural setting, the findings contribute to a better understanding of the ecological impacts of pesticide use and emphasize the need for sustainable pest management strategies.
Kontribusi Sosial Meningkatkan Komitmen Masyarakat Untuk Penanganan Sampah Di Pesisir Pantai Paciran Lamongan Aliwu, Putri Liani; Prayoga, Diansanto; Aqmar, Huuriyah Naziiha Zaatil; Siregar, Sabina Azira Balqis; Sanda, Cansy Gesi; Ahmad, Ahmad; Rahmawati, Kavia; Maghfirah, Najwa Shuma
Journal Of Human And Education (JAHE) Vol. 4 No. 1 (2024): Journal Of Human And Education (JAHE)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v4i1.587

Abstract

Pengelolaan sampah merupakan kunci dalam pengurangan dampak negatif yang akan ditimbulkan. Pendekatan 3R (Reduce, Reuse, Recycle) menjadi pedoman utama, dengan berfokus pada pengurangan penggunaan, pemanfaatan kembali, dan dengan mendaur ulang material untuk mewujudkan solusi berkelanjutan. Sosialisasi 3R (Reduce, Reuse, Recycle) pada kegiatan kontribusi ini memfokuskan dalam pembahasan materi 3R pengelolaan sampah. Kerja bakti pemasangan tempat sampah, deklarasi dan komitmen membuang sampah pada tempatnya. Pretest dan Postest untuk mengukur pengetahuan yang didasari oleh kepedulian lingkungan akan meningkatkan peran serta masyarakat dalam melaksanakan penanganan dalam mengurangi jumlah sampah agar tidak berdampak besar terhadap lingkungan. Dalam praktek bersama dengan masyarakat sekitar kelompok Mahatta berencana untuk dapat membagikan tempat sampah kepada masyarakat setempat dengan tujuan agar masyarakat dapat bisa memilah terkait sampah mana yang termasuk sampah organik dan non-organik. kemudian Observasi yang dilakukan untuk mengamati sampah yang berada di sekitaran pesisir Kecamatan Paciran. Observasi ini melibatkan pemanfaatan dan penggunaan sarana dan prasarana antara lain menempatkan sampah pada wadah yang sudah tersedia, proses pengumpulan sampah, dan pemindahan sampah.