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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.
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 Abdillah, Moc. Reza Wahyu Ahmad Ilham Tanzil Ahmad Ilham Tanzil Al-Ghofiqi, M. Faris Alfatah, Naufal Akbar Amelia Tri Arsita Anggreini, Rizqi Aprilia Putri Antonio, Ach. Farhad Septian Arthayasa, Raden Mochammad Yudishtira Ageng Arthur Frans Cesar Regar Arthur Frans Cesar Regar Arum, Ayu Puspita Basuki , Basuki, Basuki Bimo Arvi Aji Isnanto Brian, Ida Bagus Daniswara Budiman, Subhan Arif Burhanudin, Ahmad Cahyoadi Bowo Cindy Febrian, Berlian Clarissa Myra Ananta Destiawan, Hisyam Azhar Destria Putri, Romadhona Devani Avrillia Susanto Dewi, Lara Putri Kartika Dyah Ayu Kessumowati Dyah Ayu Savitri Else Emilia Rumekso Ersya Kamelia Rosana Fachrurrozi, Faisal Fahrudin, Danil Eka Fanata, Wahyu Indra Duwi Farisi, Oria Alit Firmawati, Julvia Nurlaeli Gatot Subroto Hisyam Ashar Destiawan Ika Purnamasari Irwanto Sucipto Irwanto Sucipto, Irwanto Isnanto, Bimo Arvi Aji Kesumowati, Dyah Ayu Kharisma Adi Bagaskara Kurniawan, Bintang Lailatus Sufiaah, Annisa Leona, Agis Mandala, Marga Meliala, Susan Barbara Patricia Sembiring Nisak, Fauziatun Oria Alit Farisi Pambudi , Satrio Lintang Parawita Dewanti Prasojo, Sri Irawan Laras Pusparani, Syafina Putri, Romadhona Destria Rachmandhika, Yusuf Ratih Apri Utami Ratnasari, Tri Regar, Arthur FC Rina Kumalasari Riska Annisyafira Safitri, Mahardika Safitri, Urmita Dwi Saputr, Tri Wahyu Saydi, Royhan Setiyono Setiyono Sri Hartatik Sultan Ghozi Imaduddin Susanto, Devani Avrillia Syafina Pusparani Taufik, Rahadian Falqi Tri Ratnasari Tri Wahyu Saputra Ummi Sholikah Ummi Sholikhah Urmita Dwi Safitri Vega Kartika Sari Wildan Muhlison, Wildan Yagus Wijayanto Yeremia Rivieri Yoandita Velina Aprilia Yusuf Rachmandhika Zaky Firmansyah Maulana