Particle Size Distribution and Hydraulic Conductivity in Coastal Non-Agricultural Land in Gaza Coastal Plain

Abstract

Background: Particle size distribution and hydraulic conductivity of coastal no-agricultural lands are not available. This study characterized the particle size distribution and hydraulic conductivity on coastal non-agricultural land along the coastal plain of Gaza. Materials and Methods: Six soil profiles were digged along the coastal plain in Gaza Strip and soil samples were collected from 0-150 cm depth. Four soil plots around each site were used to determine the hydraulic conductivity using Infiltrometer method. Four particle size groups were identified, group 1 (630 nm), group 2 (200 nm), group 3 (63 nm) and group 4 (20 nm). Results: Dominancy of particle size group 2 was noticed in all sites followed by group 3. Groups 1 and 4 were less dominant in all sites. Hydraulic conductivity ranged from lower value 0.27 in the control soil plot in Khan Younis (site 1) to the highest value 1.76 m/s in disturbed soil plot in Shakhejjlen (site 3) with regression coefficient (R2) range of 0.9725-0.997 indicating strong positive association. Conclusion: It can be concluded that the coastal non-agricultural land is sandy with various hydraulic conductivity values due to different particle size distribution. These data are useful to the scientific community around the world and will be helpful to speculate potential risk factors to life of ecosystem.

Influence of Biogas Production on Bioremediation of Animal Manures

“…On the other hand fatty acids produced from cellulose biodegradation have no acid buffering capacity accordingly larger EC values were obtained with cow manure. This is in accordance with a previous report [22] which provides similar explanation for other cases. On the other hand percentage removal of COD was high in cow manure followed by mixed manure; the lowest removal was with chicken manure.…”

“…[21] [22] which revealed faster biodegradation of organic nitrogen containing compounds. They also revealed that denitrifying bacteria has an active rule in the bioremediation process.The data inFigure 2clearly show the increase of EC values from the 1 st day up…”