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Kajian Sifat Fisika Tanah Das Sumpur Bagian Hulu Kabupaten Tanah Datar

Yulnafatmawita, and Asmar , and Aulia, Rahman (2014) Kajian Sifat Fisika Tanah Das Sumpur Bagian Hulu Kabupaten Tanah Datar. J. Solum vol. IV No. 1 Januari 2007. I8-28 . ISSN 1392-7991

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Abstract

A research about study of soil physical properties in upper parl of Sumpur Watershecl in Tanah Datar Regency, West Sumatrawas conducted in 2005. The objective of the research was to supply information about soil physical properties in the Lrpper par-t of Sumpur watershed. These data are important to predict the erosion that can happen in that area and the impact to the surrounding area. Survey method with purposive random sampling was employed to this research for sarnpling soil in the field. Soil was sarnpled lrom each land use randomly. There were lour types of land use found in the area, those were f,orest, rnixed wood, annual season crops, and rice field. Based on field observation it was found that there were two classes of soils there, Andisols and Inceptisols. The results of laboratory analyses showed that soil texture in Andisols was silt loam, it was the same for each land use. Soil texture in lnceptisols, however, was finer than that in Andisols, it was clay. Bulk volurne and total pores of both Andisol and Inceptisol for each land use were not yet different from those in the forest land use. Then, the value for plant available water, drainage pores, and water retaining pores in each land use for both soils were still comparable to those in forest and use. However, soil organic carbon (OC) content tended to decrease as land use change from forest to mixed wood, annual season crops, and rice field at both soils except for mixed wood land use in Inceptisol. The soil OC in that land use was slightly higer than that in the forest. Key Words: land use, soil OC,

Item Type: Article
Subjects: S Agriculture > S Agriculture (General)
Unit atau Lembaga: Fakultas Pertanian > Ilmu Tanah
Depositing User: ST Irwan Kurniawan
Date Deposited: 16 Jun 2010 03:55
Last Modified: 28 Aug 2015 00:31
URI: http://repository.unand.ac.id/id/eprint/2550

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