| 1. | Environmental impacts of the Covid-19 pandemic on the world and Iran | |
| صفحه 1-11 | ||
| Mohammad Yazdi | ||
| 2. | Geomorphic effects of gravel mining on coastal plain rivers in Mazandaran, Iran | |
| صفحه 12-19 | ||
| Mohammad Mehdi Hoseinzadeh؛ Reza Esmaili | ||
| 3. | Identification and determination of avalanche speed by using radar interferometry –A case study in Varangah Rud at Chalous Road, Iran | |
| صفحه 20-27 | ||
| Abolghasem Goorabi؛ mohammad Fathollahzadeh | ||
| 4. | Critical centers of wind erosion and evaluation of measures taken to combat desertification (Case study in Jiroft and Anbarabad counties) | |
| صفحه 28-34 | ||
| Mojtaba Dolat Kurdistani | ||
| 5. | Zonning susceptible areas of landslide using WLC and OWA methods -A case study in Mountain cliff Khan, Iran | |
| صفحه 35-43 | ||
| Hamid Ganjaeian؛ Morteza Rezaei Arefi؛ Tina Peysoozi؛ Kamyar Emami | ||
| 6. | The role of land use changes on the formation and spatial changes of thermal islands – A case study in Ahvaz city, Iran | |
| صفحه 44-51 | ||
| Rahman Zandi؛ Zohreh Roki | ||