Soil organic matter and related soil properties in forest, grassland and cultivated land use types in UMS, Sabah

Yeoh, Chooi Keen (2010) Soil organic matter and related soil properties in forest, grassland and cultivated land use types in UMS, Sabah. Universiti Malaysia Sabah. (Unpublished)

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Abstract

At present, global climate change has focused great attention and research efforts on the study of the soil carbon cycle, as the patterns of soil organic carbon (SOC) storage and density in various soil types or locations are the foundation for determining the role of soil in the global carbon cycle. The aim of this study was to determine the effects of selected land uses (forest, grassland, and cropland) located in Universiti Malaysia Sabah (UMS), campus and soil depth on the soil organic matter (SOM) and related soil properties. Soil samples from three depths, 0-15 cm, 15-30 cm and 30-45cm, were collected for soil organic matter and soil pH analyses, and from two depths, 0-5 cm and 5-10 cm for soil water content and bulk density analyses determination for the cropland, open forest, and grassland land use types. There were significant differences of SOM in forest, grassland and cropland for the three soil depths studied. SOM pools at the 0-15 cm depth of forest, cropland and grassland were estimated at 2.27 %, 2.07%, and 0.83 %, respectively. The SOM contents in all land uses decreased significantly with soil depth. The grassland top 5 cm at the time of sampling contained 33.2 % and 48.53 % more soil water content than the forest and cropland respectively. Soil bulk density in cropland soils was higher than for forest and the latter was higher than grassland. The different land uses and depth accounted for the variations of soil carbon stocks.

Item Type: Academic Exercise
Uncontrolled Keywords: Soil organic carbon, Soil, Forest, Grassland, Cropland, Universiti Malaysia Sabah, Sabah
Subjects: ?? SD390-390.43 ??
Divisions: SCHOOL > School of Sustainable Agriculture
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 09 Oct 2012 08:37
Last Modified: 13 Oct 2017 01:42
URI: http://eprints.ums.edu.my/id/eprint/5035

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