Analysis of soil quality for hydrological disaster mitigation in sub-watershed of Krueng Jreue Aceh Besar Regency Indonesia

Helmi, . and Basri Hairul, . and Sufardi, . and Helmi, . Analysis of soil quality for hydrological disaster mitigation in sub-watershed of Krueng Jreue Aceh Besar Regency Indonesia. pp. 89-104. ISSN 1394-7990

Land conversion of forest to non-forest has led to a reduction in soil fertility exhibited by a lower soil quality index value (SQI) in the Sub-Watershed of Krueng Jreue. This research aimed to determine soil quality associated with various land uses using the SQI value approach. SQI calculated based on the criteria proposed by Mausbach Seybold (1998) which is suitable for field conditions using analysis of Minimum Data Set (MDS). The parameters analyzed include rooting depth soil texture bulk density total porosity pH of the soil C-organic N-total P-available K-exchangeable and soil respiration. The result showed that the quality criteria of the soil consist of three classes: low medium and high which have soil quality index values of 0.27 0.52 and 0.64 respectively. The area of research was mapped accordingly by class: (1) high covering an area of 14016.98 ha (60.38); (2) medium covering an area of 8542 90 ha (36.79); and (3) low covering an area of 658 18 ha (2.83). Types of land use categorized as having high quality are primary forest secondary forest and residential area with respective values of 0.66; 0.64 and 0.63. Open land grassland moor rice field and shrubs were of medium quality with respective values of 0.47; 0.48; 0.52; 0.51 and 0.55.

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Abstract

Land conversion of forest to non-forest has led to a reduction in soil fertility exhibited by a lower soil quality index value (SQI) in the Sub-Watershed of Krueng Jreue. This research aimed to determine soil quality associated with various land uses using the SQI value approach. SQI calculated based on the criteria proposed by Mausbach Seybold (1998) which is suitable for field conditions using analysis of Minimum Data Set (MDS). The parameters analyzed include rooting depth soil texture bulk density total porosity pH of the soil C-organic N-total P-available K-exchangeable and soil respiration. The result showed that the quality criteria of the soil consist of three classes: low medium and high which have soil quality index values of 0.27 0.52 and 0.64 respectively. The area of research was mapped accordingly by class: (1) high covering an area of 14016.98 ha (60.38); (2) medium covering an area of 8542 90 ha (36.79); and (3) low covering an area of 658 18 ha (2.83). Types of land use categorized as having high quality are primary forest secondary forest and residential area with respective values of 0.66; 0.64 and 0.63. Open land grassland moor rice field and shrubs were of medium quality with respective values of 0.47; 0.48; 0.52; 0.51 and 0.55.

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Item Type:	Article
AGROVOC Term:	Soil
AGROVOC Term:	Quality
AGROVOC Term:	Hydrology
AGROVOC Term:	Natural disasters
AGROVOC Term:	Land use
AGROVOC Term:	Watersheds
AGROVOC Term:	Biological activity in soil
AGROVOC Term:	Bulk density (soil)
AGROVOC Term:	Research
AGROVOC Term:	Soil types
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:53
URI:	http://webagris.upm.edu.my/id/eprint/7754

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