Extraction of Coastal Land Use Patterns and Monitoring of Changes in Qeshm Island with the Approach of Coastal Construction Management

Document Type : Original Article

Authors

1 Department of Civil Engineering-Construction Management, Qeshm Branch, Islamic Azad University, Qeshm, Iran

2 Department of Civil Engineering, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran

3 Department of Architectural Engineering, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran

Abstract

Aerial photographs were used in the years 1346, 1369, 1374, 1386 and 1396 (51 years) to monitor changes in coastal land use. Coastal uses were manually extracted in ArcGIS software. The results showed that barren lands, rocky hills and scattered forests are the dominant patterns of Qeshm coastal land use with a relative frequency of 29.3, 23.7 and 10.3%, respectively. In the years 1346 to 1396, barren lands, agriculture, rocky hills, mangrove forest and coastal rocks have decreased by 4851, 297, 7099, 219 and 2938 hectares respectively; However, human settlements, Tepe Mahor, clay beaches, sandy beaches, wharf-ports and industrial areas have increased by 2094, 3813, 136, 5351, 644 and 1249 hectares, respectively. In the years between 1346 and 1396, the highest increase in the use of human constructions was from 1386 to 1396. In the eastern areas, especially the Darghan-Qeshm axis, the most coastal land use changes related to human constructions include the construction of Tula industrial town, the development of Qeshm and Darghan urban settlements, the construction of Bahman and Zakari wharves, the development of Darghan city and Laft wharf. and the area of ​​the coastal city of Qeshm on the east coast increased from 450 hectares in 1386 to 730 hectares in 1396, and the growth of the city has been towards the south and southwest. In the northwestern and southwestern coasts of Qeshm Island, the changes are mainly related to the reduction of forest cover and agriculture.

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