Nature and properties of Mollisols in a semiarid region in Northern Jordan
1999
Khresat, S.A.
Mollisols have developed from Quaternary deposits in northern Jordan under xeric moisture and thermic temperature regimes. The morphological features and physico-chemical properties of three Pedons representing the major Mollisols in the arid and semiarid region in northwestern Jordan were studied. The studied soils show a wide variation in their morphological, physical, and chemical properties as a result of differences in mean annual precipitation, vegetation and topography. Mollisols were well developed in the 450 mm precipitation zone. Also, they are confined to areas of steep slopes. These areas are either uncultivated or under tree crops. They are characterized by being dry for periods in summers but are moist in winter months. It is believed that present agricultural practices are degrading Mollisols into mollic intergrades.
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