جستجوی مقالات مرتبط با کلیدواژه "مادی" در نشریات گروه "جغرافیا"

The water streams branching from Zayandehroud in the city of Isfahan are called Madi and they are among the unique features of the structure of this city. In the past, they were used to irrigate agricultural lands, but today, with the change in their function, they have lost their past identity and efficiency. The expansion of activities and fundamental changes in the urban structure and elements have caused the loss of the importance and identity of Madi issues in the city of Isfahan. The current research has been carried out with the aim of identifying the Madi problems of Regions 1 and 3 of Isfahan and solutions to organize them. The method of this research is descriptive-analytical. In this regard, the existing Madi problems of these two areas were identified by field sampling and using a satellite positioning device. Then, the perceived problems were categorized and solutions related to their solution were presented. According to the conducted studies, the length of the Madi network of Region 1 is 10921 meters (10.9 km) and the Madi of Cheshme Niasserm is the longest Madi of this region with 3624 meters. In Region 3, the length of the Madi is 10,921.59 meters (10.9 km) and the Niaseram spring Madi is the longest one in this area with 3,624.72 meters. The results showed that Madies of Region 1 have 33 types of problems, the most important of which are bed slope correction and cleaning. In Region 3, 18 problems have been identified, of which dredging and cleaning are the main ones. Organizing the green space around the properties and using urban furniture and creating a space for the residents around the properties are among the most important management solutions for organizing the properties in these two regions.

Water streams branching from Zayandehrood in Isfahan, called Madi, are unique features of this city. Madi play a vital role in climate, agriculture, groundwater recharge, and urban flood control in Isfahan. The purpose of this study is to evaluate the madi problems of areas 1 and 3 of Isfahan in order to increase their resilience to urban floods. In this research, using the method of survey and field surveys, the madi path of Isfahan city in the central areas of the city (regions 1 and 3) was investigated and the problems that arose for the madi in different places using the positioning device. Satellite finder and receipt-recording were recorded, then problems were identified and categorized and necessary management solutions were provided to solve problems. The results showed that the length of the madi network of region one is 10921 meters (10.9 km) and the madi of Niasaram spring with 3624 meters is the longest madi of this region. Zone 3, despite having a larger area than Zone One, has less material network than Zone One. Studies on the madi problems of these two areas showed that the madi of region one have 33 types of problems, the most important of which are bed slope correction and cleaning. There are 18 problems in area three, the most important of which is dredging and cleaning. For this purpose, solutions appropriate to the problems of each madi should be considered. Organizing the green space around the madi and proper use of urban furniture and creating a space in order to benefit and use as many residents as possible around the madi is one of the most important management strategies to maintain and organize the material network in these two areas.

Floods are one of the natural hazards that cause a lot of damage in cities. Resilience is one of the ways to reduce the effects of natural hazards. In this study, the material resilience of Isfahan against urban floods was investigated. First, Gis layers of 15 areas of Isfahan city and materials were prepared and the problems of each area were extracted. Then factor analysis was performed on them and the factors affecting the materials were identified. The relevant questionnaire was completed by 35 experts to assess material problems and related tests were performed on them. According to the results, a total of 4 factors explain more than 90% of the variance of the data. The first factor with 50.51% was called slope correction, the second factor with 18.45% was called material reopening, the third factor with 13.14% was called material cleaning, and the fourth factor with 8.2% was named as dredging. The results of t-test showed that according to the average of community 3 in all three social, physical and managerial-institutional criteria, the material situation of Isfahan is at a desirable level. In the community of 5, all three material criteria of Isfahan are far from the desired conditions. Considering that the materials of regions 15, 6, 12 and 10 have the least problems, respectively, it can be said that these regions have the highest resilience and the materials of regions 9, 8, 1 and 13 have the most problems. They have the least resilience.