چکیده:
The study of the groundwater resources and their properties are very important due to the vast desert areas and arid conditions. Given the current situation in Iran, the water supply is one of the most important territorial and environmental problems. In this study, groundwater resources were surveyed and mapped in Yazd Province and their properties were modeled to determine their effectiveness for grazing and agricultural activities. The main objective of this study was to develop and establish groundwater geoinformatics and cartographic monitoring of the meteorological data and groundwater formation. Also, the climatic characteristics were evaluated as determinants parameters of groundwater flow to measure its parameters variations. The thematic charts and geoinformatics maps were provided. Profile software was used for modeling microclimate and groundwater flow’s parameters, like groundwater level and moisture transfer for several decades. Priznak model was used for comparison and multi-parameter analysis of specified profiles and their classification. Finally, different regions of Yazd Province were mapped and classified with different degrees of possibility for grazing and agricultural activities. Results showed that groundwater levels in the study territory are at depths ranging from 40 to 145 m. According to the results, it was observed that the changes in groundwater level and microclimate can be used to evaluate the land capability for grazing and agricultural activities.
خلاصه ماشینی:
"In this study, groundwater resources were surveyed and mapped in Yazd Province and their properties were modeled to determine their effectiveness for grazing and agricultural activities.
Relevance and the practical importance of the microclimate and groundwater flow modeling in Yazd Province determined by necessity: 1) Territorial separation with different provision groundwater and comparative evaluation of possibilities for the development of animal husbandry, 2) Assess the resource potential of bio-components of the landscape.
Meteorological database of observation stations in western half of Yazd Province was created, then thematic layers, including the characteristic profiles of groundwater flow models were performed in the ArcGIS environment.
Necessary profiles for groundwater flow modeling were selected in the western half of Yazd Province, with mountainous, grazing and agricultural areas (Fig. 3) (Anderson et al.
Groundwater resources management and assessment of agricultural potential in the region were evaluated via the modeling, as also were performed in other studies and similar results were obtained (Tian et al.
According to the results, it was observed that study of the groundwater flow and microclimate changes is necessary to evaluate lands for grazing and agricultural activities in different conditions, especially in arid and semi-arid areas.
Based on the analysis of initial data, which were used to solve the problems of modeling and interpretation in this study, it was considered that Profile and Priznak models are suitable to study the microclimate and groundwater flow, mapping agricultural potential areas."