نتایج جستجو برای: considering soil maps
تعداد نتایج: 474870 فیلتر نتایج به سال:
The current study addresses determination of occurrence optimal thresholds of predictive models of plant species distribution in Nir rangelands of Yazd province. Accordingly, after determination of homogeneous units using digital elevation model and geology maps with scale 1:25000, vegetation sampling was carried out using random systematic method via plots which establishment across 3-5 transe...
The estimation of the soil moisture state is fundamental in water resources management, agricultural application and prediction of drought and flood events. The evaluation of such variable at watershed scale can be achieved by mean of remote sensing techniques. In this work maps of Land Surface Temperature retrieved by satellite imagery were used in a variational assimilation framework named AC...
The classical earth pressure theory assumes a semi-infinite soil behind the wall, which is no longer applicable to problem of in case finite soil. A field study was conducted investigate at different excavation depths. cells were used measure change along depth, and measured pressures compared with calculation results for Moreover, influence width-to-depth ratio, cohesion, internal friction ang...
The usefulness of L-band radiometer observations for the retrieval of near-surface soil moisture has already been demonstrated in many studies. Unfortunately, the ability to estimate soil moisture from these remotely sensed observations is hampered by the infeasibility to characterize the roughness of the soil surface. Given the difficulty to measure in situ soil roughness parameters, improved ...
Defining, planting and domesticating of important medicinal plants is necessary due to reducing pressure on natural resources and conserving genetic resources. Therefore, it is essential to know the factors affecting on establishment and distribution of medicinal plants. Then, the present research, is done in order to modelling the distribution of the most important medicinal plant species in t...
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