التركيب الكيميائي (العناصر الرئيسية والنزرة والترابية النادرة) والمعدني للتربة الجبلية في منطقة البحر المتوسط كمؤشر لمصادر التربة وتكوينها في فلسطين
Date
2017-01-08
Authors
محمود صلاح الدين عزيز زيد
mahmoud Salahdeen Aziz Zaid
Journal Title
Journal ISSN
Volume Title
Publisher
AL-Quds University
جامعة القدس
جامعة القدس
Abstract
The purpose of this study was to explore the pedogenesis processes and to examine
the source (parent material) of Mediterranean mountain soil; especially Terra Rossa,
Rendzina and other associated soils through chemical (major, trace and Rare Earth
Elements (REEs)), grain size and mineralogical compositions. Forty soil samples
were collected form 13 pedons from different areas in Palestine that represent
different soil types, lithology, elevation and precipitation along a climatic transect to
demonstrate variability between south, north sections and west east transects. The
north section around Nablus consists of: western and eastern transect. The western
one in turn consists of Qusin pedon which was Terra Rossa, and Bait Eba pedon
which was Rendzina. While the eastern one in turn consists of Tubas pedon which
was Rendzina, and Tayaseer pedon which was Terra Rossa. The south section, which
was Bethlehem and Jerusalem mountains, consists of: western and eastern transect,
the western one in turn consists of Battir1, Battir2 and AlQbu, which is Karstic,
pedons which were Terra Rossa, while Ishwa and Ishwa (the road) pedons which were
Rendzina soil. In other hand, the eastern one in turn consists of Teqo’a east and
Teqo’a west pedons which were Terra Rossa, While Beit Sahour and Bayth Ta'amar
pedons which were Rendzina. Two dust samples from Al-Quds University and seven
rock samples from different pedons were collected also. From grain size, chemical
compositions (major, trace and REEs), and mineralogical compositions results, dust
was found to be the dominant parent material in studied soils.
Leaching was dependent on rainfall amount and bedrock and soil permeability. Ca,
Sr and U elements leached more than these trace elements Fe, K, Mg, Na, Al, Ba, Co,
Cr, Cu, Mn, Ni, Rb, Sb, V, Zn and Zr and REEs. Some Terra Rossa samples were
alike Typical Terra Rossa but with relatively high calcite content but mineralogical
and chemical characteristics were similar to Pale Rendzina as in Qusin pedon. On the
other hand, Brown Rendzina resembles Typical Terra Rossa as in Beit Sahour and
Bayth Ta'amar pedons. The east transect samples leached less than the western, but
the difference in leaching was low.
Battir 2 profile has two soil layers deep layer, layers were composed of one on top of
the other
IV
Dust samples were polluted with these trace elements Al, Cu, Pb, Sb and Zn, and this
may be due to industrial or construction sources. Vanadium element found to be
affected by rain and this is similar to Aluminum which considered to be well retained
in soil.
A baseline of grain size, major and trace elements, REEs and minerals was added to
soil science in Palestine in general and Mediterranean virgin mountain soil (Terra
Rossa and Rendzina).
Description
Keywords
الدراسات البيئية , Environmental Studies