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All Journal Jurnal Ilmu Pertanian Indonesia Indonesian Journal of Geography Rotasi Jurnal Gaussian Journal of Tropical Soils Berkala Ilmiah Pertanian JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) AGRIVITA, Journal of Agricultural Science Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Matematika dan Statistika serta Aplikasinya (Jurnal MSA) Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat BAREKENG: Jurnal Ilmu Matematika dan Terapan Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) J Statistika: Jurnal Ilmiah Teori dan Aplikasi Statistika Prima: Jurnal Pendidikan Matematika Jurnal Pengabdian Magister Pendidikan IPA Jurnal Kreativitas PKM ComTech: Computer, Mathematics and Engineering Applications Jurnal Teknologi Pertanian Andalas METIK JURNAL Jurnal Review Pendidikan dan Pengajaran (JRPP) Variance : Journal of Statistics and Its Applications Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Jurnal ABDINUS : Jurnal Pengabdian Nusantara Grouper: Jurnal Ilmiah Perikanan Jurnal Abdi Insani Mandalika Mathematics and Educations Journal Jurnal Pengabdian kepada Masyarakat Nusantara Nusantara Science and Technology Proceedings JAMBURA JOURNAL OF PROBABILITY AND STATISTICS International Journal on Food, Agriculture and Natural Resources (IJFANRES) Journal La Lifesci Jurnal Pengabdian Perikanan Indonesia Jurnal Agrimanex: Agribusiness, Rural Management, and Development Extension Multica Science and Technology Idea Pengabdian Masyarakat Warisan: Journal of History and Cultural Heritage Journal of Mathematics: Theory and Applications Jurnal Pendidikan Ilmu Pengetahuan Alam (JP-IPA) Media Pertanian Journal of Applied Agricultural Science and Technology Jurnal Keperawatan Karya Bhakti Maternity and Neonatal : Jurnal Kebidanan VARIANSI: Journal of Statistics and Its Application on Teaching and Research Islam & Contemporary Issues Islamic Education Jurnal Statistika dan Komputasi (STATKOM) Innovative: Journal Of Social Science Research Basis : Jurnal Ilmiah Matematika Jurnal of Community Health Development (JCHD) Eksponensial Journal of International Multidisciplinary Research Jurnal Pengabdian Nasional (JPN) Indonesia Public Service And Governance Journal Holistik Analisis Nexus Jurnal Intelek Insan Cendikia Journal of Citizen Research and Development AR-RUMMAN: Journal of Education and Learning Evaluation Jurnal Ilmiah Kesehatan IJASDS: Indonesian Journal of Applied Statistics and Data Science Jurnal Penginderaan Jauh Indonesia Jurnal Cakrawala Keperawatan Jurnal Ilmiah Pengabdian dan Pemberdayaan Masyarakat Jurnal Riset Sosial Humaniora dan Pendidikan
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Journal : Journal of Tropical Soils

Spatial Simulation of The Organic Carbon Content and its Effects on the Erodibility and Soil Erosion with Universal Soil Loss Equation and Geographic Information Systems Wijayanto, Yagus; Firmawati, Julvia Nurlaeli; Purnamasari, Ika; Ristiyana, Suci
JOURNAL OF TROPICAL SOILS Vol 30, No 1: January 2025
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i1.25-35

Abstract

Universal Soil Loss Equation (USLE) and Geographical Information Systems are two spatial soil erosion analysis models because both have a spatial context. As an important factor, soil erodibility is crucial in determining soil erosion, with C-organic significantly influencing the K value. The main aim of this study is to characterize soil erodibility and soil loss based on spatial simulation of the effects of soil C-organic in a GIS environment. Research findings indicated that by simulating within a GIS environment, C-organic can affect soil erodibility and erosion. Low C-organic levels can increase soil erodibility, while high C-organic levels can decrease it. A reduction in C-organic by 10%, 20%, and 30% will increase K by 1.10%, 1.17%, and 1.21%, respectively. Conversely, adding 10%, 20%, and 30% C-organic will decrease K by 1.12%, 1.27%, and 1.46%, respectively. A 10%, 20%, and 30% increase in C-organic can reduce soil loss by 1.2%, 1.3%, and 1.5%, while a reduction in C-organic will increase soil loss by 1.1%, 1.2%, and 1.3%, respectively. A low K value indicates slight erosion, while a high K value suggests high erosion. Continuous C-organic and properly managing vegetation are necessary to maintain and improve soil quality.
Using Geostatistics for Spatial Analysis of Soil Moisture Content, Electrical Conductivity, and pH at Paddy Fields Wijayanto, Yagus; Kustianto, Muhammad Aldian Dwi; Budiman, Subhan Arif; Purnamasari, Ika
JOURNAL OF TROPICAL SOILS Vol. 28 No. 2: May 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i2.47-56

Abstract

Soil is dynamic due to various internal and external processes exerted on the soil, resulting in unique soil characteristics in space in short and long distances. Geostatistics (kriging) is the method of quantifying the spatial variation of soil properties. This research was mainly aimed at applying geostatistics to quantify and interpolate the spatial dependence and structure of three soil properties, namely pH, EC, and Soil Moisture Content (SMC) in a small area. This research was conducted on paddy fields in Mlandingan Kulon Village, Situbondo Regency. Sampling was conducted on an area of   9.2 ha with 31 sample points. Normal data distribution was found for pH and EC, whereas this was not the case for SMC. The results of the analysis showed that most of the pH values   were alkaline (>8), EC values were non-saline (<2 mm/cm), and SMC was in the low category (<20%). The results show that for three soil properties, weak dependencies were observed. The values of Root Mean Square Error (RMSE)  confirmed that kriging with exponential was better compared to the spherical model, resulting in the RMSE of 0.546 (pH), 0.041 (EC), and 1.512 (SMC).
Temporal Changes in Spatial Patterns of Soil Properties During a Period of Rice Growth Wijayanto, Yagus; Anggreini, Rizqi Aprilia Putri; Purnamasari, Ika; Ristiyana, Suci
JOURNAL OF TROPICAL SOILS Vol. 28 No. 1: January 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i1.1-8

Abstract

Growing rice is complicated because of the interrelationship among production components, one of which is soil conditions. Determination of soil conditions is usually conducted by employing some soil properties. It is no doubt that soil properties have spatial and temporal characteristics. This research used two soil properties: Electrical conductivity (EC) and pH. This study aimed to use and evaluate Inverse Distance Weighted to uncover the temporal changes in pH and EC during the rice growth period. The methods used in the research were field survey, soil sampling, laboratory analysis, and data processing in Geographical Information Systems (GIS). The sample used was 30 and repeated three times under the growth period (vegetative, generative, and ripening). The results showed that there were changes in pH values of the soil in one growing season, and EC values tend to increase from the vegetative to the ripening period.
Spatial Simulation of The Organic Carbon Content and its Effects on the Erodibility and Soil Erosion with Universal Soil Loss Equation and Geographic Information Systems Wijayanto, Yagus; Firmawati, Julvia Nurlaeli; Purnamasari, Ika; Ristiyana, Suci
JOURNAL OF TROPICAL SOILS Vol. 30 No. 1: January 2025
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i1.25-35

Abstract

Universal Soil Loss Equation (USLE) and Geographical Information Systems are two spatial soil erosion analysis models because both have a spatial context. As an important factor, soil erodibility is crucial in determining soil erosion, with C-organic significantly influencing the K value. The main aim of this study is to characterize soil erodibility and soil loss based on spatial simulation of the effects of soil C-organic in a GIS environment. Research findings indicated that by simulating within a GIS environment, C-organic can affect soil erodibility and erosion. Low C-organic levels can increase soil erodibility, while high C-organic levels can decrease it. A reduction in C-organic by 10%, 20%, and 30% will increase K by 1.10%, 1.17%, and 1.21%, respectively. Conversely, adding 10%, 20%, and 30% C-organic will decrease K by 1.12%, 1.27%, and 1.46%, respectively. A 10%, 20%, and 30% increase in C-organic can reduce soil loss by 1.2%, 1.3%, and 1.5%, while a reduction in C-organic will increase soil loss by 1.1%, 1.2%, and 1.3%, respectively. A low K value indicates slight erosion, while a high K value suggests high erosion. Continuous C-organic and properly managing vegetation are necessary to maintain and improve soil quality.
Co-Authors . Usmadi Abda Abda Abdillah, Moc. Reza Wahyu Abdul Haris Adhitya Wardhono Adi Pramono, Mahasyin Adinda Dwi Saputri Agnesia Margareta Purba Agung Nugroho Puspito Agung Sih Kurnianto Agustianto, Rezky Ahmad Ilham Tanzil Al-Ghofiqi, M. Faris Alfatah, Naufal Akbar Alfian Hidayat Alima, Isna Alpida Sari ALVIANA, FIFI Alya Zahra Lirinza Amelia Tri Arsita Amelia, Pidia Anam, M Khairul Anam, M. Khairul Andjani, Nazwa Anggi Putri Simamora Anggreini, Rizqi Aprilia Putri Anisa Ell Raharyani Anisah, Retno Lusmiati Anna Apriana Hidayanti Antonio, Ach. Farhad Septian Aprilianti, Rina Ari Setyawati Ariessela, Syeli Arisya Rajagukguk Arthayasa, Raden Mochammad Yudishtira Ageng Arthur Frans Cesar Regar Arthur Frans Cesar Regar Aruan, Friska Fransiska Arum, Ayu Puspita Arumsari, Melisa Arwan Arwan Aryana, Ida Bagus Putu Aryati, Ayu Ashari Siregar Asrul, Annisa Aprilia Assyifa'u Qolbiatu Atthoyibah Astuti, Banar Astuti, Wahyu Tri Atira, Nurul Aurela, Rosalina Diva Awy Silaban Ayyu Rizkia Nasution Azimah, Siti Syariah A’yun, Qonita Qurrota Bahriah, Ayu Belia Mutiara Aprili Br Depari Brena Risky Brian, Ida Bagus Daniswara Budiman, Subhan Arif Burhanudin, Ahmad Cahyono, Budi Cahyono Candra Dewi Rahayu Candra Dewi Rahayu, Candra Dewi Charisma, Ilmiyatul Fitri Cindy Febrian, Berlian Cindy Simanullang Ciplis Gema Qori’ah Clarissa Myra Ananta Daffa, Muhamamd Zulfiqar Dalimunthe, Mutiara Nazla Damanik, Selvia Andriani Putri Damayanti, Dwi Kartika Delima br Pakpahan Denny Nurdiansyah Desi Mertina Br Sembiring Destria Putri, Romadhona Desty, Yola Dewi Pratiwi Dewi, Nina Nurmalia Dhalimunte, Sadina Yanti Dhea Syah Nazwa Nasution Dhita Dwi Yanti Dian Pratama Dinda Valicia Sipayung Dona Wahyuning Laily Dwi Adinda Dwi Erwin Kusbianto Dyah Ayu Savitri Ebban Bagus Kuntadi Elangga Sony Widiharsono Else Emilia Rumekso Endah Sih Prihatini Erlyne Nadhilah Widyaningrum Erna Hayati, Erna Ersya Kamelia Rosana Fadilah, Ayu Fadillah, Alfiana Nurul Faisol Mas’ud Faisol Masud Faisol Mas’ud Fajar Mubarok, Fajar Fanata, Wahyu Indra Duwi Fandi Saputra Nduru Fatchur Rozci Fatiha, Fifi Fatmi’aturro’isah, Nurul Fauziah, Fithriyatul Feronica, Elisa Fidia Deny Tisna Amijaya Firmawati, Julvia Nurlaeli Fitri Azizah Fuquh Rahmat Shaleh Garaika Gea, Natalman Godman Lesmana Pakpahan Gracia Tri Putri Br Ginting Gunanti Mahasri Gunsyang, Grassella Gusti, Angger Aisyah Hadiahning Habibi, Muhammad Nizar Habsari, Humairo Dyah Puji Hanna Mawarni Manullang Harifin Hasbi Mubarak Suud Hasibuan, Hendrison Adipura Hidayanty, Nurul Ilma Hotmaida Berutu Husna, Kholishotul I Wayan Suastra Ibnu Firmansyah Ida Syamsu Roidah Imasdiani, Imasdiani Irwanto Sucipto Ivan Fadillah Jessica Amelia Butar Butar Joyanti Sirait Juan Carlos Ginting Juan Vito Juanda Alfario Turnip Juliartha, Made Angga Juliarto, Handy Kurniawan Juni Elfi Br Purba Kanzana, Gebina Karundeng, Franklin Peter Anton Katri Nafisa Kharisma Adi Bagaskara Khotimah, Triani Husnul Kosasih, Raditya Arya Kurniawan, Bintang Kurniawati, Emy Kusrahman, Nanda Yopan Kustianto, Muhammad Aldian Dwi Lailatus Sufiaah, Annisa Leona, Agis Lia Oktavia Ika Putri Lilis Cahaya Septiana Lioni Tantri Sigiro Lubis, Rifka Ariani Lubis, salsabila Lukitaningsih Lukitaningsih M. Rizky Fauzan Tampubolon Maharani br Purba Mahmuda , Siti Mangalik, Gerald Manita, Yuni Arroh Manurung, Nadya Khaterina Mardiana Mardiana Marpaung, Adrian Marturianus Laia Mas'ud, Faisol Maulana, Andrian Meiriati Simanjuntak Meliala, Susan Barbara Patricia Sembiring Mellfani Rhamadinda Nendra Tigara Memi Nor Hayati Messakh, Gerald Claudio Moch Saad, Moch Saad Moch Saad, S.Pi.,M.Si Moch. Reza Wahyu Abdilah Mohammad Reyfi Syahnaz Anugrah Mohammad Ubaidillah Mohd. Apryanta Sukasa Muhajir, Shafa Al Muham, Setia Esra S. Muhammad Ibnu Adani Muhammad Naufal Syafiq Purba Muhammad Wahdeni Pramana Muhammad Waldano Mukti Ali Munandar, Denna Eriani Muntalim, Muntalim Musmirani, Musmirani Mustajab, Abdullah Azam Mutia Haryani Siregar Nadia Priska Nainggolan, Klara Minar Sari Nainggolan, Tiarma Elisabet Najuah, Najuah Nariza Wanti Wulan Sari Nasution, Delila Agustina Nasution, Muhammad Ardiman Nazwa, M. Dirham Nida, Khairun Ningrum, Dewy Maulidya Novita Agresia Manik Novita Paskah Rianti Nugraha, Pratama Yuly Nugraheni, Nazila Nur Azizah, Noviani Nur Gilang Fitriana Nur Salsabilah Harahap Nurkholifah Dwi Rahayu Nurmayanti, Wiwit Pura Nurwahyuni, Atik Octavianto, Thifan Okti, Reski Dwi oya, abas Pakpahan, Ananda Dasiva Pangruruk , Thesya Atarezcha Pangruruk Parawita Dewanti Patricia SM, Susan Barbara Peperawati, Pratiwi Rita Perangin-angin, Desta Riani Br. Piliang, Putri Hasanah Prasojo, Sri Irawan Laras Pratama, Arjun Prihati, Eka Priyono, Bagus Setyo Eko Pusparani, Syafina Puspito, Agung Nugroho Putri delvia Putri Indah Yani Putri, Romadhona Destria Putri, Silfira Elisya Rachman, Fatya Rachmandhika, Yusuf Rafli Edelweis Turnip Raharyani, Anisa Ell Rahayu, Yuliana Fuji Rahman, Ade Aulia Rahmawati, Rahmawati Ramadhanti, Choirul Lisa Ratnasari, Tri Raudatul Fadilla Raunaq, Ulya Salisa Regar, Arthur FC Rina Kumalasari Riska Annisyafira Ristiyana, Suci Rito Goejantoro, Rito Rokhani Rokhani romdiyah Romdiyah Romdiyah, Romdiyah Rondhi, M Rony, Zahara Tussoleha Rumahorbo, Ruth Debora Saad, Moch Sabana, Sobi Safitri, Fivie Safitri, Mahardika Salman Aldo Alfaresi Salomo Martines Hutasoit Salsabila, Nur Afifah Sania Siregar Sanjaya, Rifqi Ilman Sartika, Dian Sembiring, Santa Hoky Setiani, Fibrinika Tuta Setiyono Setiyono Setyawati, Ari Setyawativ, Ari Shanya Br. Bangun Siagian, Yohana Magdalena Siahaan, Wahyu Renaldi Sibarani, Tesa Romanti Sifriyani, Sifriyani Sihotang, Marnita Simangunsong, Winda Helena Simaremare, Elsa Manora Sinaga, Yosua Solafide Sinambela, Rosi Daniela Sinurat, Gabriel Joey Febriand Siregar, Wishmar Samuel Siringoringo, Meiliyani Sitepu, Maria Maharani Siti Khadijah Siti Khoiriyah SITI MAHMUDAH SM, Indah Chofifah Sony Junianto Sri Mulyani Sri Suryaningsih Stevany Mbu, Margaretha Sultan Ghozi Imaduddin Suparino, Balqis Widyastuti Supriadin, Andi Supriyati, Amanah Surbakti, Adriel Surya Prangga Suud, Hasbi Mubarak Suyitno Suyitno Syafa Nur Azizah Syafina Pusparani Syaripuddin Syaripuddin Tappil Rambe Tarigan, Gema Persada Taufik, Rahadian Falqi Tiara Ni’ammusyfah Pasaribu Tri Ratnasari Tri Wahyu Saputra Tsani, Nada Maulida Ubaidillah, Mohammad Ummi Sholikah Ummi Sholikhah Ustiawan, Arif Veronika Simbolon Vinc Jae Lestari Surbakti Wasono, Wasono Widia, Widia Wijayanto, Yagus Wijayanto Wildan Muhlison, Wildan Wiwit Pura Nurmayanti Woro Hastuti Setyantini Wulandari, Tri Suraning Yagus Wijayanto Yeremia Rivieri Yoandita Velina Aprilia Yuda Sanrico Simanullang Yudiprasetyo, Nehemia Bagas Yuki Novia Nasution, Yuki Novia Yuliana Santa Lore Purba Yuni Arroh Manita Yuniarti, Desi Yusuf Rachmandhika Zahrul Arief Intasar Zai, Diraningsih Zaky Firmansyah Maulana