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The quality of the urban environment is one of the important indicators of the development of any city. In this regard, the type of pattern that can be used in cities can have a great impact that biophilic urban planning is one of the most important patterns due to its relationship and centrality with nature. The purpose of this study is to explain the environmental quality criteria of Tehran according to the components of biophilic urban planning. The research method is descriptive-analytical and based on data collection through survey method. The research tool was a questionnaire whose validity was confirmed by the elite community and its reliability was confirmed by Cronbach's alpha coefficient greater than 0.70. The statistical population of the study also consists of urban experts and specialists, including academics and experts in Tehran. Due to the lack of statistics in this area, coronary and cost constraints, 120 experts were selected as the sample size. The results showed that the structural-functional, content and physical-spatial indicators of the quality of Tehran's urban environment based on biophilic urban planning were significant at a level of less than 0.05. The study of the mean and significant direction indicates the weakness of these indicators and lack of attention to biophilic urban planning in the planning of this city. Also, the results of structural equation modeling confirmed that the structural-functional, content and physical-spatial indices of biophilic urban planning can be effective in improving the quality of Tehran's urban environment. . Therefore, biophilic urban planning has not been emphasized in the planning model of Tehran, but the results indicate their effectiveness in improving the quality of the city's environment if used.
 

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The expansion of arid and semi-arid regions in Iran has caused that most of the mentioned phenomena to be seen in the study area.  Alluvial Fans are the landforms that are spread in different areas.  Identifying the productive processes and assessment of their effects can help to manage natural hazards, as well as help the land use planning. In the present study, the tectonic activity at the surface of alluvial fans in the south of Kharqan Mountain in the northeast of Hamadan province was studied. The studied Alluvial Fans were located in the south of the Kharqan Mountain in the northeast of Hamadan province. First, the process of development of Alluvial Fans in the area using different maps was investigated (consisting of two Gozel Valley, Celery conifers, and several small Alluvial Fans), and the available evidence on the tectonics of alluvial Fans in the area were studied. The obtained results of the research show that in parts of area such as the eastern of the gozel valley cones the tectonics is active, and the areas such as alluvial Fans that be located between the Gozel Valley was inactive. Other evidence in the bed of the Gozel Alluvial Fans shows the changes in terrain due to the activity of faults in the eastern part of the study area, which changed the pattern of waterway movement in the riverbed and led to the destruction and exploration of the river. Also, the drainage pattern and sediment depth at the surface of alluvial fans were due to tectonic activities in alluvial fans. The prepared geological logos show the slow and active periods in different geological periods in the region. Therefore, it started with a long slow period, then continued with tectonic activities and fluctuations.