Environment and Ecology Research Vol. 12(4), pp. 430 - 445
DOI: 10.13189/eer.2024.120408
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Soil Salinity in Kalimantan, Indonesia

Deasy Arisanty ^*, Novi Rahmawati
Department of Geography Education, Faculty of Teacher Training and Education, Lambung Mangkurat University, Indonesia

ABSTRACT

Soil salinity is one of major indicators to characterize water cycle, nutrient movement and carbon cycle in tropical peatland. It is necessary to explore the characteristic and spatial distribution of soil salinity in this peatland. Barito Delta is coastal peatland in Kalimantan that soil salinity distribution is important information to manage agriculture activity, water drinking supply, and carbon stock in the peatland ecosystem. Therefore, the aims of this article are: a). to analyze condition of soil salinity and another soil characteristics such as soil organic matter, pH and permeability, b). to analyze soil salinity distribution in peatland. Soil sampling and laboratory analysis were performed to obtain information of soil salinity, pH, soil organic matter, and soil particles (i.e. sand and clay particles) from 1^st to 5^th m soil depth. The combination techniques of soil electrical conductivity sampling, electrical resistivity, and NDVI (Normalized Difference Vegetation Index) MODIS (Moderate Resolution Imaging Spectroradiometer) are used to obtain spatial distribution of soil sampling applying ordinary kriging with variogram from NDVI MODIS. The result shows that soil salinity has a positive correlation with pH, soil organic matter, and percentage of clay particles following the depth of soil in all landforms. Correlation coefficients between soil salinity vs clay particles and soil salinity vs sand particles have an opposite mark for each other meaning that soil salinity vs clay particle is positive correlation, while negative correlation for sand particle. Spatial interpolation applying combination of soil sampling, electrical resistivity sampling, and NDVI MODIS shows the most accurate method to map spatial distribution of soil salinity in Barito Delta compared to soil sampling alone, and both soil sampling and NDVI MODIS. Based on soil salinity values, soil in Barito Delta is classified as non-saline. The 3^rd m of soil depth is the marked for different characteristics of soil salinity, pH, soil organic matter, sand and clay particles. For example, soil salinity increases following the depth of soil from 1^st to 2^nd m, while from 4^th to 5^th m decreases, vice versa.

KEYWORDS
Soil Salinity, Soil Organic Matters, Clay Particles, Sand Particles, Soil pH

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Deasy Arisanty , Novi Rahmawati , "Soil Salinity in Kalimantan, Indonesia," Environment and Ecology Research, Vol. 12, No. 4, pp. 430 - 445, 2024. DOI: 10.13189/eer.2024.120408.

(b). APA Format:
Deasy Arisanty , Novi Rahmawati (2024). Soil Salinity in Kalimantan, Indonesia. Environment and Ecology Research, 12(4), 430 - 445. DOI: 10.13189/eer.2024.120408.