The diagrams show the changes in the area surrounding the Blackstone River before and after a flood. Key features are illustrated, such as the oxbow, the oxbow lake, and the landscape modifications.
Before the flood, the Blackstone River flows in a winding path with a notable oxbow bend. The landscape also includes an array of trees, which are dispersed across the area, as well as a small forest located near the bend. There are also farmlands or orchards in an organized row pattern to the right side of the river.
After the flood, significant changes occurred in the river’s structure and its surrounding environment. The oxbow bend has been cut off, forming an oxbow lake. The river now flows in a more direct path, bypassing the former oxbow section. The farmland, which was previously intact, appears unaffected, but the landscape near the oxbow area shows fewer trees, indicating damage or removal due to the flood.
Overall, the main changes include the creation of an oxbow lake and the alteration of the river’s flow, along with the reduction in vegetation near the oxbow. The farmlands, however, seem to have been preserved despite the flood.