SPATIAL DISTRIBUTION OF BRACKISHWATER POND SOIL CHARACTERISTICS IN PEKALONGAN CITY CENTRAL JAVA PROVINCE

ABSTRACT: Spatial distribution of brackishwater pond soil has a vital role in the system of bioenvironment including brackishwater pond environment. This research was aimed to determine the spatial distribution of brackishwater pond soil characteristics inPekalongan City, Central Java Province. A total of 59 sampling points each with twodifferent soil depth samplings were determined by simple random method. A total of 21 soil characteristics were measured in the field and analyzed further in thelaboratory. Geostatistic with Kriging Interpolation method in the ArcGIS 9.3 software were used to depict the distribution of the data across the landscape. Furthermore, the spatial distribution was presented by using ALOS AVNIR-2 image. Research resultindicates that in general, pond soil in Pekalongan City can be classified as soil withhigh variability or relatively heterogenic with the value of variation coefficient morethan 36%. Soil characteristics which have similar pattern of spatial distribution are acid sulfate soil and soil nutrient content. High value of pH, organic matter, and totalN of soil, and on the other hand, low value of PO4 were generally found in the pond area of Krapyak Lor Village, while in Pekalongan City, it was found high clayish soilcontent but relatively homogenous. It is recommended that pond management mustbe based on soil characteristics which are different from one area to another. Thesoil characteristics itself can be drawn and assessed through spatial distribution.
KEYWORDS: spatial distribution, soil characteristic, brackishwater pond, Pekalongan City
Author: Andi Indrajaya Asaad#and Akhmad Mustafa
Journal Code: jpperikanangg110014

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