Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Pakistan Journal of Biological Sciences
Year: 1999  |  Volume: 2  |  Issue: 2  |  Page No.: 430 - 433

Physico-chemical Analysis of Soils of Cholistan Desert

M. Ashraf, S. M. Muyassir Bukhari, Shoukat Ali Shahid and M. Arshad Azad    

Abstract: Soil samples from 3-6 inches depth were collected at 8 different locations from Cholistan desert during an expedition in November 1997. Physico-chemical analysis by standard methods revealed the following information as; electrical conductivity as 211±25.63 μ S/cm, pH as 8.72±0.09, total alkalinity as 5.36±1.63, bicarbonate content 91.44±6.8 MEq/L, chloride content 1.12±0.25 MEq/L, sulphate as 212.49±23.26 MEq/L, Na as 12.12±1.66 MEq/L, K as 11.83±5.06 MEq/L, Ca as 0.62±0.097 MEq/L and Mg as 1.00±0.17 MEq/L. Carbonate and orthophosphate were not detected by the employed methods. The amount of organic matter was 1.035±0.167 per cent with total nitrogen content of 0.047±0.01 per cent. When soil samples were subjected to metal analysis by atomic absorption spectroscopy, sub-optimal levels of all four studied metals (in ppm) were found, i.e., Cu was 0.079±0.022, Fe was 1.808±0.316, Mn was 1.653±0.212 and Zn was 0.0363±0.007. These lower levels of essential metals indicate lower demands of these metals by the desert vegetation.

Cited References   |    Fulltext    |   Related Articles   |   Back
  Related Articles

Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility