Awni Taimeh

University of Jordan | UJ · Land , Water , Environment,

Investigate the nature and development of Paleosols in Jordan as related to climatic changes responsible for their development.. The properties for these soils could be used to understand why some soils are more prone to degradation while others are highly degraded. The analyses were carried on many soil profiles sampled from different regions in J...

Land degradation resulting from improper land use and management is a major cause of declined productivity in the arid environment. The objectives of this study were to examine the effects of a sequence of land use changes, soil conservation measures, and the time since their implementation on the degradation of selected soil properties. The climat...

Land degradation resulting from improper land use and management is a major cause of declined productivity in the arid environment. The objectives of this study were to examine the effects of a sequence of land use changes, soil conservation measures, and the time since their implementation on the degradation of selected soil properties. The climat...

Most climate change scenarios predict a significant increase in the frequency of high intensity rainfall events especially in the dry areas, which will increase runoff and soil erosion. Understanding the factors that control soil erosion is crucial to recommending appropriate measures to protect soils and reduce their vulnerability. The objective o...

Climatic change and land degradation are the most serious threats affecting the sustainability of land resources in West Asia and North Africa (WANA) region. Mitigation or adaptation interventions should be implemented using database on climate and climatic variation, characterization of local climatic changes, rainfall variability, drought occurre...

Detailed characterization of soils and their variation along different topography positions has not been investigated in depth for Mediterranean arid regions. There is a need to accurately understand the variation and the spatial distribution of soil properties within dry region of the Levant. Such understanding is required to optimize the use and...

Accurate prediction and characterization of the spatial distribution and temporal variation of soil water is indispensable to optimize the use and management of land within dry areas, which suffer from limited arable land and water resources. The objective of this research is to examine the effect of hillslope position and characteristics on soil p...

Cracking soils, or vertisols, occupy a large and important part of the agricultural land in Jordan where rain-fed agriculture is practised. Six sites were selected in places where vertisols occur on limestone parent material, including different precipitation zones. The physico-chemical properties of these soils were studied in order to understand...

Resources available for dryland farming in Jordan are limited since 91% of the country has an arid climate. Moreover, the available resources are subject to a wide range of natural and human constraints. The farming systems consist of two main types: annual crops such as wheat and barley, and fruit trees such as olives, grapes, and stone fruits. So...

The performance of a small runoff-basin water-harvesting system (negarim) was evaluated under a typical Mediterranean arid environment in Jordan. Rainfall, runoff, catchment area, soil water storage, and crop evapotranspiration were analyzed as elements of one system. Three micro-catchment areas (25, 50, and 75 m2) and three surface treatment metho...

Arid and semi‐arid lands suffer from scarce water conditions. Rainfall occurs over brief intervals producing short intensive floods. Due to the complete absence of gauge stations in the local wadis reliable watershed analysis is necessary in irrigation planning and project design in this environment. This paper presents a wadi network analysis for...

This paper reports on the formation of soils with salic horizons in some arid regions of Jordan. Quaternary alluvial and eolian sediments were deposited during different episodes, which reflected the influence of different climates. The studied soils were influenced by either eolian or alluvial activities or both. The properties of these soils stil...

This paper reports on the formation of soils with gypsic horizons in Quaternary sediments in arid regions of Jordan. Gypsic horizons were formed from eolian and alluvial sediments as well as through in situ weathering of sandy parent material. The gypsum originated from the parent rock found in that area. The formation of the gypsic horizons seems...