Dela Landslide Occurrence and Negin Ancient Bridge Creation: An Example of Bidirectional Effect of the Environment and Human in Shimbar Highlands

Hosteling and bustling of human life in its environment has always been coincided with many challenges and opportunities which acted like a basis for human life. Meanwhile, human has never been the looser; human’s intelligence and his ability to think sometimes coveted the nature and sometimes compromised with it. Central Zagros with high and low mountainous latitudes has always been a great example of the fight and the compromise between human and environment. The occurrence of Dela landslide and also creation of Negin ancient canal is an example of this infraction which has occurred in high latitudes of Shimbar located in north Khuzestan. The occurrence of Dela landslide in Shimbar river water networking system, and its consequence which is creation of Shimbar dam lake, has caused three staged environmental changes in that area. As a result of these changes, some problems for human living in the area have appeared which mostly include blocking the only communicative path in the area. Blocking this path has caused the people to think more to find a way to solve the problem. The solution led to creating the Negin archaeological canal which caused a reduction in the water level (the third stage of changes) as well as opening the communicative path. These events which in one hand represent the concurrence of human against the environment (occurrence of Dela landslide and creation of Shimbar lake); and on the other hand represent the concurrence of the environment against human (creation of the canal and reopening the communicative path) proves the bidirectional interaction between human and environment in Zagros area.