Please use this identifier to cite or link to this item:
Title: Variation in Soil Physical, Chemical and Microbial Parameters in Various Land Use and Altitude in Bagrot Valley, CKNP
Authors: Ali, Shamsher
Keywords: Physical Sciences
Issue Date: 2018
Publisher: Karakoram International University, Gilgit, Gilgit Baltistan, Pakistan.
Abstract: Mountains soils are the most susceptible to land use activities and global environmental change and are useful ecological indicators. Therefore, investigation of the variation in soil properties due land use activities and altitude should prove useful for the mountain communities and resource management especially in light of the ever-increasing pressures on these fragile regions caused by global climate change. The study aimed to determine the variation in the soil physical, chemical and microbial parameters across various land use at different altitudes in the Bagrot valley, Gilgit-Baltistan, Pakistan. A total of 2970- soil samples during August-Septumber, 2014 were collected from three land uses; pasture, forest and adjacently located arable land at different altitude ranging from 2100 m to 4163 m. The soils were analyzed for bulk density (BD), saturation percentage (SP), total porosity (TPS), sand, silt, clay, texture, pH, electric conductivity (EC), CaCO3, soil organic matter (SOM), total Nitrogen (TN), available nutrients, soil organic carbon stock (SOCS), 16S rRNA & ITS genes copies number and fungal-to-bacterial ratio (F:B). A significant variation in all investigated parameters were found across the land uses and along with the altitudes. The soil under arable land had significantly higher values of BD, sand, EC and CaCO3 contents with the lowest values in the forest. In contrast, forest soil had significantly higher values of TPS, SP, silt, clay, SOM, TN, available nutrients, SOCS, 16S rRNA & ITS genes and F:B with the lowest values in arable land. With increasing elevation, BD, sand content, EC, pH, CaCO3 content, and 16S rRNA number decreased significantly, while TPS, SP, silt, clay, SOM, TN, SOCS, ITS gene (except pasture), F:B ratio and available nutrients increased with increasing altitude. In addition, soil properties were correlated with SOM and pH. The results indicated that the variation in soil parameters accros the land uses and along with altitude supposed to be the land use activities and the climatic variables (temperature and precipiataion) that change with elevation. These findings increased the understanding of dynamics of soil properties and enhance predictions of the responses of mountain soil resources under projected climate change in fragile regions.
Gov't Doc #: 21362
Appears in Collections:PhD Thesis of All Public / Private Sector Universities / DAIs.

Files in This Item:
File Description SizeFormat 
Shamsher ali chemistry 2018 kiu gilgit.pdfphd.Thesis3.25 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.