Ecology, Environment and Conservation Paper

Vol 24, Issue 2 2018; Page No.(673-680)

SPATIAL ANALYSIS OF SOIL TEXTURE AND PEAT SOIL BY NDSI METHOD AT SWAMP AREA OF BANYUASIN DISTRICT,INDONESIA

Indrayani, Erika Buchari, Dinar D.A. Putranto and Edward Saleh

Abstract

Road construction in the swampy area should certainly face many problems related to the soil characteristics that are composed of soft soils. The understanding of soil condition to swamp areas is needed to determine the road trace and can be done using the remote sensing technology. The use of Normalized Difference Soil Index (NDSI) method is an alternative to the characterizing of the soil condition. The location of soil sampling is determined by NDSI, while the specific gravity, property index, and soil texture is analyzed by laboratory analysis. The classification of solid condition using NDSI method on composite band 65 obtained the range of reflectance values ranging (-1.0336) – (-0.4582) for water body, (-0.4582) – (-0.0645) for not opens paces and (-0.0645) – (0.4300) for open spaces. The classification of soil characteristics in the swamp area in Banyu as in regency consists of 3 classes, which are clay type with diameter <0.002 mm, medium soil with diameter 0.002 – 0.075 mm, and slightly rough for fine sandy soil with diameter 0.075 – 0.425 mm. In addition, in the study area, the peat depth is approximately measured as 50 – 100 cm and 100 – 200 cm.

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